FOMi40HighSpeed Fiber Optic Modem - PDF document

1 FOMi-40High-Speed Fiber Optic Modem V
FOMi-40High-Speed Fiber Optic Modem Version 1.0INSTALLATION AND OPERATION MANUAL General Safety Practices Do not touch or tamper with the power supply when the power cord is connected. Line voltages may be present inside certain products even when the power switch (if installed) is in the OFF position or a fuse is blown. For DC-powered products, although the voltages levels are usually not hazardous, energy hazards may still exist. Before working on equipment connected to power lines or telecommunication lines, remove jewelry or any other metallic object that maUnless otherwise specified, all pro

2 ducts are Grounding is provided by conne
ducts are Grounding is provided by connecting the mains plug to a wall socket with a protective earth ected to the protective earth at all times, by a wire with a diameter of 18 AWG or wider. Rack-mounted equipment should be mounted only in Always make the ground connection first and disconnect it last. Do not connect telecommunication cables to ungrounded equipment. Make sure that all other cables are disconnected before disconnecting the ground. Always connect the AC plug to a wall socket with a protective ground. The maximum permissible current capability of the branch distribution circuit that supplies pow

3 er ilding installation should have high
er ilding installation should have high breaking capacity and must operate at short-circuit current exceeding 35A. Always connect the power cord first to the equipment and then to the wall socket. If a power switch is provided in the equipment, set it to the OFF position. If the power cord cannot be readily disconnected in case of emergency, make sure that a readily accessible circuit breaker or in the building installation. In cases when the power distribution system is IT type, the switch must disconnect both poles simultaneously. Unless otherwise specified in the manual, the DC input to the equipment is fl

4 oating in reference to the ground. Any s
oating in reference to the ground. Any single pole can be externally grounded. Due to the high current capability of DC power systems, care should be taken when connecting the DC supply to avoid short-circuits and fire hazards. DC units should be installed in a restricted access area, i.e. an area where access is authorized only to qualified service and maintenance personnel. Make sure that the DC power suom any AC source and that the installation complies with the local codes. The maximum permissible current capability of the branch distribution circuit that supplies power ilding installation should have high

5 breaking capacity and must operate at s
breaking capacity and must operate at short-circuit current exceeding 35A. Before connecting the DC supply wires, ensure that power is removed from the DC circuit. Locate the circuit breaker of the panel board that services the equipment and position. When connecting the DC supply wires, first connect the ground wire to the corresponding terminal, thnegative pole. Switch the circuit breaker back to the ON position. A readily accessible disconnect device that is suitably rated and approved should be incorporated in the building installation. If the DC power supply is floating, the switch must disconnect both

6 poles simultaneously. Connecting Data an
poles simultaneously. Connecting Data and Telecommunications Cables Data and telecommunication interfaces are classified according to their safety status. The following table lists the status of several standard interfaces. If the status of a given port differs from the standard one, a notice will be given in the manual. Ports Safety Status E2, E3, STM, DS-2, DS-3, S-Interface ISDN, Analog voice E&M SELV Safety Extra Low Voltage: Ports which do not present a safety hazard. Usually up to 30 VAC or 60 VDC. xDSL (without feeding voltage), Balanced E1, T1, Sub E1/T1 TNV-1 Telecommunication Network Voltage-1:

7 Ports whose normal operating voltage is
Ports whose normal operating voltage is within the limits of SELV, on which overvoltages from telecommunications networks are possible. FXS (Foreign Exchange Subscriber) TNV-2 Telecommunication Network Voltage-2: Ports whose normal operating voltage exceeds the limits of SELV (usually up to 120 VDC or telephone ringing voltages), on which overvoltages from telecommunication networks are not possible. These ports are not permitted to be directly connected to external telephone and data lines. FXO (Foreign Exchange Office), xDSL (with feeding voltage), U-Interface Ports whose normal operating voltage

8 exceeds the limits of SELV (usually up
exceeds the limits of SELV (usually up to 120 VDC or telephone ringing voltages), on which overvoltages from telecommunication networks are possible. Always connect a given port to a port of the same safety status. If in doubt, seek the assistance of a qualified safety engineer. Always make sure that the equipment is grounded before connecting telecommunication cables. Do not disconnect the ground connection before disconnecting all telecommunications cables. Some SELV and non-SELV circuits use the same connectors. Use caution when connecting cables. Extra caution should be exercised during thunderstorms.

9 When using shielded or coaxial cables, v
When using shielded or coaxial cables, verify that there is a good ground connection at both ends. The earthing and bonding of the ground connections should comply with the local codes. The telecommunication wiring in the building may be damaged or present a fire hazard in case of contact between exposed external wires and the AC power lines. there are restrictions on the diameter of wires in the telecom cables, between the equipment and the mating connectors. To reduce the risk of fire, use only No. 26 AWG or larger telecommunication line Pour réduire les risques s’incendie, utiliser seulement de

10 s conducteurs de télécommunications 26
s conducteurs de télécommunications 26 AWG ou de section supérieure. Some ports are suitable for connection to intra-building or non-exposed wiring or cabling only. In such cases, a notice will be given in the installation instructions. Do not attempt to tamper with any carrier-provided equipment or connection hardware. Electromagnetic Compatibility (EMC) The equipment is designed and approved to comply with the electromagnetic regulations of major regulatory bodies. The following instructions may enhance the performance of the equipment and will provide better protection against excessive emission and bet

11 ter immunity against disturbances. A goo
ter immunity against disturbances. A good earth connection is essential. When installing the equipment in a rack, make sure to remove all traces of paint from the mounting points. Use suitable lock-washers and torque. If an external grounding lug is proviusing braided wire as short as The equipment is designed to comply with EMC requirements when connecting it with unshielded twisted pair (UTP) cables. However, the use of shielded wires is always recommended, especially for high-rate data. In some cases, when unshielded wires are used, ferrite cores should be ecial instructions are provided in the manual. Disc

12 onnect all wires which are not in perman
onnect all wires which are not in permanent use, such as cables used for one-time configuration. The compliance of the equipment with the regulations for conductis dependent on the cable qualitUTP with 80 dB longitudinal conversion loss (LCL). Unless otherwise specified or described in the manual, TNV-1 and TNV-3 ports provide secondary protection against surges on the The equipment is designed to provide adequate protatic discharge (ESD). However, it is good working practice to use caution when connecting cables terminated with plastic connectors (without a grounded metal hood, such as flat cables) to sensiti

13 ve data lines. Before connecting such ca
ve data lines. Before connecting such cables, discharge yourself by touching earth ground or wear an ESD preventive wrist strap. Caution Attention This equipment has been tested and found to comply with the limits of the Class A digital device, pursuant to Part 15 of the FCC rules. These limitagainst harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the Installation and Operation manual, may cause harmful interference to the radio communications. Operation o

14 f this equipment in a residential area i
f this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own This Class A digital apparatus meets all the requirements of the Canadian Interference-Causing Equipment Regulation. utes les exigences du Règlement sur le matériel brouilleur du Canada. This is a class A product. In a domestic environment, this product may cause radio interference, in which case the user will be required to take adequate measures. Cet appareil est un appareil de Classe A. Dans un environnement résidentiel, cet appareil peut provoq

15 uer des brouillages radioélectriques. D
uer des brouillages radioélectriques. Dans ces cas, il peut être demandé à l’utilisateur de pren Dieses ist ein Gerät der Funkstörgrenzwertklasse A. In Wohnbereichen können bei Betrieb dieses Gerätes Rundfunkströrungen auftreten, in welchen Fällen der Benutzer für entsprechende Gegenmaßnahmen verantwortlich ist. Warning Avertissement Achtung Declaration of Conformity Manufacturer's Name: RAD Data Communications Ltd. Manufacturer's Address: 24 Raoul Wallenberg St., Tel Aviv 69719, Israel declares that the product: Product Name: FOMi-40 conforms to the following standard(s) or other normat

16 ive document(s): : EN 55022:1998 + Infor
ive document(s): : EN 55022:1998 + Information technology equipment – Radio disturbance A1:2000, A2:2003 characteristics – Limits and methods of measurement. EN 55024:1998 + Information technology equipment – Immunity characteristics – A1:2001, A2:2003 Limits and methods of measurement. Safety: EN 60950-1:2001 Information technology equipment – Safety – Part 1: General requirements. Supplementary Information: The product herewith complies with the requirements of the EMC Directive 89/336/EEC, the Low ive 99/5/EC for wired equipment. The prod

17 uct was tested in a typical configuratio
uct was tested in a typical configuration. Haim Karshen VP Quality European Contact: RAD Data Communications GmbH, Otto-Hahn-Str. 28-30, 85521 Ottobrunn-Riemerling, Germany FOMi-40 Ver. 1.0 Installing FOMi-40 1 Quick Start Guide If you are familiar with fiber optic modems, use this guide to prepare FOMi-40 for operation. 1. Installing FOMi-40 Setting the Internal Jumper and Switch Make sure that the power cord is disconnected before opening the unit case. To make the internal settings: 1. Open the FOMi-40 case. 2. Set the CHASS GND jumper to CON. 3. Set the SW1 switch, as follows: OLD: FOMi-40 is

18 compatible with the older FOMi-40s (fea
compatible with the older FOMi-40s (featuring software revision 1.01 or lower). NEW: FOMi-40 is compatible with the newer FOMi-40s (featuring software revision higher than 1.01). 4. Close the FOMi-40 case. Connecting the Interfaces To connect the line: Connect the fiber optic cables to the respective RX and TX connectors on the rear To connect the DTE: Connect the DTE to the appropriate DTE connector on the rear panel of FOMi-40. To connect the AC power: Connect the power cable to the connector on the FOMi-40 rear panel and then to the mains outlet. Warning FOMi-40 Ver. 1.0 Chapter 1. IntroductionOvervie

19 w.......................................
w....................................................................................................................Versions.................................................................................................................Applications............................................................................................................Features.................................................................................................................Fiber Optic Interface..........................................................................................DTE Interface..............

20 ........................................
.......................................................................................Timing................................................................................................................Remote Management.........................................................................................Diagnostics........................................................................................................Physical Description...................................................................................................Functional Description..................................................

21 ........................................
..............................................Management..........................................................................................................Timing....................................................................................................................Backward Compatibility...........................................................................................Technical Specification............................................................................................... Chapter 2. Installation and SetupIntroduction........................................................

22 ........................................
.......................................................Site Requirements and Prerequisites..........................................................................Package Contents......................................................................................................Installation Overview..................................................................................................Setting the Internal Jumper and Switch.......................................................................Opening the Case...........................................................................................

23 ........Setting the Jumper and Switch...
........Setting the Jumper and Switch................................................................................Closing the FOCase.......................................................................................Connecting the Cables................................................................................................Connecting the Line................................................................................................Connecting the DTE................................................................................................Connecting G.703 Codirectional Interface with TB

24 Connector...............................
Connector...................................Connecting the Power.............................................................................................AC Power Connection.........................................................................................DC Power Connection......................................................................................... Chapter 3. OperationTurning FOMi-40 On...................................................................................................Front Panel Controls and Indicators.......................................................................

25 .....cations............................
.....cations.....................................................................................................FOMi-40 Configuration...............................................................................................Turning FOMi-40 Off.................................................................................................. Chapter 4. ConfigurationMenu Tree.................................................................................................................Main Screen...............................................................................................................LC

26 D Data Fields...........................
D Data Fields.......................................................................................................Front-Panel Buttons................................................................................................bmenus.................................................................................................... Chapter 1 Introduction Installation and Operation Manual 1-2 Overview FOMi-40 Ver. 1.0 to-point application using FOMi-40. This configuration is typically used to create a point-to-point interface between a server and a remote station. FOMi-40 master and slave units are conne

27 cted over a dedicated fiber optic trunk.
cted over a dedicated fiber optic trunk. The FOMi-40 slave unit is connected to a PCU remote control unit. In this application, you can configure the link from either the local or remote side of the connection. Figure 1-1. Point-to-Point Application shows a network comprised of multiple point-to-point connections. In this application, each slave unit is connected to a FOMi-40C single modem card. All cards are mounted in the LRS-24 modem rack. The network described accommodates 12 links managed from a central SNMP management station. Figure 1-2. Central Site Application with SNMP Management Installation a

28 nd Operation Manual Chapter 1 Introduct
nd Operation Manual Chapter 1 Introduction FOMi-40 Ver. 1.0 Fiber Optic Interface Table 1-1 details fiber optic interface Table 1-1. Fiber Optic Interface Types Fiber Type [Pm] Transmitter Type Power Receiver Sensitivity ity Typical Max. Range [km] [mi] 850 62.5/125 multimode VCSEL -18 -38 5 3 1310 9/125 single mode Laser -13 -40 50 31 1550 9/125 single mode Laser -13 -40 100 62 FOMi-40 operates at the twelve selectable data rates are: 56, 64, 112, 128, 256, 384, 512, 768, 1024, 1536, 1544, and 2048 kbps. This includes the 1544 kbps rate for T1 and 20

29 48 kbps rate for E1 transmission. FOMi-4
48 kbps rate for E1 transmission. FOMi-40 supports the following DTE interfaces: V.24/RS-232 (up to 64 kbps) IR-G.703/CO (G.703 Codirectional, 64 kbps) IR-E1 (G.703 E1) T1 (1544 kbps only) IR-ETH/QN (Ethernet/Fast Ethernet bridge with VLAN support). FOMi-40 transmit timing can be derived either internally, or externally. Possible external sources for the transmit timing are the data terminal or the receive signal. The receive timing is always regenerated from the receive signal. FOMi-40 provides full management of both local and remote modems, real-time alerts on failures, diagnostic testing, and statistical i

30 nformation onThe operator manages both l
nformation onThe operator manages both local and remote modems by accessing the front panel LCD and buttons. The configuration parameters are stored in non-volatile memory. FOMi-40 features V.54 diagnostic capabilities for performing local analog and digital loopbacks and remote digital loopback. The local analog and remote digital loopbacks are controlled by front-panel pushbuttons or by a DTE interface for V.24, V.35 and RS-530 protocols. Chapter 1 Introduction Installation and Operation Manual 1-6 Technical Specification FOMi-40 Ver. 1.0 Timing The modulation timing circuit supplies the transmit clock

31 timing signal to the encoder. Three timi
timing signal to the encoder. Three timing sources are available: Internal – clock recovered from the modem's internal crystal oscillator External – clock recovered from the DTE Receive Loopback – clock recovered from the receive signal, looped back as a transmit clock. Backward Compatibility FOMi-40 is compatible with its older versions that feature previous software revisions. Refer to Setting the Internal Jumper and Switch in Chapter 2 for details. 1.4 Technical Specification Optical Interface Transmission Line Dual fiber optical cable Specifications and Modulation DTE Interface Transmission

32 Rate 56, 64, 96, 112, 128, 192, 256, 38
Rate 56, 64, 96, 112, 128, 192, 256, 384, 512, 768, 1024, 1536, 1544 and 2048 kbps Interfaces and Connectors V.24 (RS-232), 25-pin D-type, female RS-530 (V.11/RS-422), 25-pin D-type, female V.35, 34-pin, female X.21, 15-pin D-type, female V.36, 37-pin D-type, female (via adapter cable) IR-G.703/CO (64 kbps), 5-clip terminal block or RJ-45 T1 (1544 kbps only), RJ-45 Diagnostics V.54 Loopbacks Local analog loopback (LLB): activated by management software or by the DTE interface signal (V.24, V.35 and RS-Remote digital loopback (REM): activated by management software or by the DTE interface connector signal (V.2

33 4, V.35 and RS-530 only) Chapter 2 Ins
4, V.35 and RS-530 only) Chapter 2 Installation and Setup Installation and Operation Manual 2-2 Installation Overview FOMi-40 Ver. 1.0 2.2 Site Requirements and Prerequisites AC-powered FOMi-40 units in 1.5m (5 ft) of an easily-accessible grounded AC outlet capable of furnishing voltage, 115 VAC or 230 VAC, depending on the rated voltage of the unit. DC-powered units require 24 VDC or -48 VDC power source, which must be adequately isolated from the mains supply. Allow at least 90 cm (36 in) of frontal clearance for operating and maintenance access. Allow at least 10 cm (4 in) clearance at the rear of the

34 unit for signal lines and interface cabl
unit for signal lines and interface cables. The ambient operating temperature of FOMi-40 is 0relative humidity of up to 90%, non-condensing. 2.3 Package Contents The package of the standalone FOMi-40 modem includes: One FOMi-40 standalone unit AC power cord or DC power supply connector kit CBL-530/449 adapter cable for the FOMi-40 units with V.36 interface Documentation CD RM-9 rack adapter kit (if ordered). 2.4 Installation Overview bench installation, and is delivered completely assembled. No provisions are made for bolting the FOMi-40 to the tabletop To install FOMi-40: 1. Determine the required configu

35 ration of FOMi-40, according to your app
ration of FOMi-40, according to your application, and set the internal jumper and switch accordingly (see the Jumper and Switch2. Connect the DTE and fiber optic cables (see Connecting the Cables3. Connect power to the unit (see Connecting the Power Installation and Operation Manual Chapter 2 Installation and Setup FOMi-40 Ver. 1.0 Setting the Internal Jumper and Switch 2-3 2.5 Setting the Internal Jumper and Switch To reach the internal jumper and switch of FOMi-40, it is necessary to open its case with a flat screwdriver. Access to the inside of the FOMi-40 equipment is permitted only to authorized and

36 qualified service personnel. To avoid ac
qualified service personnel. To avoid accidental electric shock, always disconnect the interface cables and the power cord before removing the unit from its casing. Line voltages are present inside FOMi-40 when it is connected to power and/or to the lines. Moreover, under external fault conditions dangerous voltages may appear on the lines connected to the unit. Any adjustment, maintenance, and repair of the opened equipment under voltage should be avoided as much as possible and, when absolutely necessary, should be carried out only by a skilled technician who is aware of the hazard involved. Capacitors insi

37 de the instrument may still be charged e
de the instrument may still be charged even after the instrument has been disconnected from its source of supply. FOMi-40 contains components sensitive to electrostatic discharge (ESD). To prevent ESD damage, avoid touching the internal components. Before moving jumpers, touch the FOMi-40 frame. To open the FOMi-40 case: 1. Disconnect all cables connected to FOMi-40. 2. Release the two rear panel screws and use them as levers to slide out the PCB interior of the unit. shows the FOMi-40 PCB layout. Warning Caution Chapter 2 Installation and Setup Installation and Operation Manual 2-6 Connecting the C

38 ables FOMi-40 Ver. 1.0 RAD recommends
ables FOMi-40 Ver. 1.0 RAD recommends using a shielded twisted pair cable between FOMi-40 and the DTE (mainly for higher frequencies). The line receivers in FOMi-40 are 100terminated (for X.21B and RS-530). Connecting G.703 Codirectional Interface with TB Connector 1. Strip off about 1 cm of insulation from the wire and twist the loose wire ends together. 2. Insert a screwdriver into the square upper hole on the terminal block. 3. Raise the handle of the screwdriver to open the round lower hole. 4. Insert the stripped end of the wire into the round lower hole and then remove the screwdriver. set the CHAS

39 SIS GND jumper to the CON position when
SIS GND jumper to the CON position when using the G.703 interface. To connect the power to FOMi-40, refer to the appropriate section below, depending on your version of the unit (AC or DC). The unit has no power switch. Operation starts when the power is applied to the rear panel POWER connector. AC power should be supplied to FOMi-40 through the 1.5m (5 ft) standard power cable terminated by a standard 3-prong plug (see). The cable is provided with the unit. To connect AC power: Connect the power cable to the connector on the FOMi-40 rear panel and then to the mains outlet. The unit will be turned on auto

40 matically upon connection to the mains.
matically upon connection to the mains. DC Power Connection To connect DC power: DC power supply connection supplement. Warning Warning FOMi-40 Ver. 1.0 Front Panel Controls and Indicators 3-1 Chapter 3 Operation This chapter describes the FOMi-40 operational controls, indicators and their functions. Make sure you have completed the installation procedures detailed in Chapter 2before attempting to operate FOMi-40. 3.1 Turning FOMi-40 On FOMi-40 is turned on as soon as power is connected. When power is connected, the PWR indicator lights up and remains lit as long as FOMi-40 receives power. 3.2 Front P

41 anel Controls and Indicators All contro
anel Controls and Indicators All controls and LED indicators are located on the FOMi-40 front panel. On the master unit of FOMi-40 and on the PCU, there are three buttons on the front panel – CURSOR and ENTER. These buttons allow you to perform any operation contained in the menu currently displayed on the front panel LCD, switch menus, change the system configuration, or moAn LCD appears on the front panel of the FOMi-40 master version and on the PCU. Each row contains 16 characters to display the current user menu. The slave version features a proprietary 20-pin connector for attaching the PCU to the u

42 nit. and show the front panels of the
nit. and show the front panels of the FOMi-40 master version and PCU control unit, respectively. Control functions are common for both units. Installation and Operation Manual Chapter 3 Operation FOMi-40 Ver. 1.0 Front Panel Controls and Indicators 3-3 Table 3-1 explains each of the FOMi-40 LEDs and buttons. Explanations given here apply to all units pictured. Their numbers under the heading "Item" correspond to the identification numbers shown in and Table 3-1. FOMi-40 Front Panel Controls and Indicators Type Function 1 PWR Green LED On – Power is ON 2 RTS Yellow LED On – DTE activates

43 Request To Send 3 TD Yellow LED On 
Request To Send 3 TD Yellow LED On – Steady SPACE is being transmitted Blinks – Data is being transmitted 4 RD Yellow LED On – Steady SPACE is being received Blinks – Data is being received Not active when the RLB is active 5 DCD Yellow LED On – A valid received line signal is present. 6 TEST Red LED On – The unit is in any of the two loopback modes and/or when BERT is activated. 7 ERR Red LED On when an alarm is initiated. Blinks whenever an error is detected in BER tests. Blinks at a rate of 20 times per second if a frequency hopping System Messages and Alarms in Chapter 4)

44 . 8 CURSOR Button Enables the user to m
. 8 CURSOR Button Enables the user to move the cursor position through the menu screens and fields. 9 SCROLL Button Enables the user to scroll between the current menu field options. 10 ENTER Button Selects the current field option and updates both local and remote modem databases. 11 LCD display Displays the current menu screen and cursor position. 12 CONTROL 20-pin male Chapter 3 Operation Installation and Operation Manual 3-4 Turning FOMi-40 Off FOMi-40 Ver. 1.0 3.3 Normal Indications Table 3-2 describes front panel indicator activity during the FOMi-40 operation. Table 3-2. FOMi-40 Indicator Ac

45 tivity Indicator Status PWR On LCD Dis
tivity Indicator Status PWR On LCD Display Displays opening screen: "FOMi-40 Rev X.XX INITIALIZING" ERR OFF when connected to remote modem; Blinks when the line is disconnected. TEST OFF TD Depends on the DTE data transmission RD Depends on the remote DTE data transmission RTS Depends on the DTE RTS signal status DCD Depends on the synchronization between the local and the remote modems. ON when the modems are synchronized. 3.4 FOMi-40 Configuration All configuration activities are performed from the front panel of FOMi-40. For more information on configuration, see Chapter 4.3.5 Turning FOMi-40 Off

46 To turn off the modem, remove the power
To turn off the modem, remove the power cord from the power source. Chapter 4 Configuration Installation and Operation Manual 4-2 FOMi-40 Submenus FOMi-40 Ver. 1.0 4.2 Main Screen Following initialization, the main operational screen appears on the front panel LCD. Figure 4-2 shows the FOMi-40 main LCD display screen during normal operation. As shown, the LCD consists of four data fields. Menu TypeLOC/REMMenu OptionsParameters Figure 4-2. LCD Fields The function of the data fields is as follows: MENU Type Scrolls through the available control menus Toggles between controlling and monitoring the local

47 modem or the remote modem Menu Options I
modem or the remote modem Menu Options Indicates the control and monitoring options of each control menu Sets the parameter for the controllable menu options. Front-Panel Buttons Menus are accessed and operations are activated via the three control buttons on the FOMi-40 front panel. The three basic control functions are: Selects the field Scrolls through the field options, and allows you to make changes at the current field Confirms and accepts a selected option. 4.3 FOMi-40 Submenus Six submenus are available for configuring and operating FOMi-40. Enables the user to monitor the current status of the

48 modem, i.e. local or remote. ALARM BUFFE
modem, i.e. local or remote. ALARM BUFFER Informs the user of modem alarms. CONFIG MATCHING Enables the user to fast match the line configuration according to the parameters of the local unit or according to the parameters of the remote unit. This menu appears only if there is a mismatch between the line settings of the local and remote modems (seeCONFIG MATCHING Menu Installation and Operation Manual Chapter 4 Configuration FOMi-40 Ver. 1.0 FOMi-40 Submenus 4-3 LINE CONFIG Is used to configure the line parameters. Is used to configure both local and remote DTE. TESTS Enables the user to perform local

49 modem and on the remote modem. The follo
modem and on the remote modem. The following sections detail procedures to perform the main operations of each submenu. The menus are listed in the order in which they appear on the LCD. An asterisk (*) in any of the menus indicates the presently set value. STATUS Menu Figure 4-3. Status Menu The STATUS menu enables user to monitor the current status of the local or remote modem. To access any of the functions of the STATUS menu: the CURSOR button to move to the Menu Type field. 2. Press the SCROLL button until STATUS is displayed. Menu TypeTESTSREMDTE CONFIGLINE CONFIGALARM BUFFERSTATUSLOCLOC/REMMenu Opt

50 ionsParameters Figure 4-4. STATUS Menu
ionsParameters Figure 4-4. STATUS Menu Chapter 4 Configuration Installation and Operation Manual 4-4 FOMi-40 Submenus FOMi-40 Ver. 1.0 3. Press the CURSOR button to move to the LOC/REM field. 4. Press the SCROLL button to toggle between local modem and remote modem (if management is not active, the remote modem will not be displayed). 5. Press the CURSOR button to move to the Menu Options field. 6. Press the SCROLL button to scroll through the menu options, to reach the desired option: Select BITRATE to display the line bit rate in the Parameters field Figure 4-5Select CLKTYPE to display the currently us

51 ed clock type in the Parameters Select I
ed clock type in the Parameters Select INTERFACE to display the type of the connected interface (between the modem and the DTE) in the Parameters field. Select FO-INTRF (Fiber Optic Interface) to display the type of the fiber optic interface in the Parameters field. Select REM to display the remote modem type in the Parameters field. Select TEST to display the test which is currently being performed. For an explanation on how to view and run tests, see Error! Bookmark not on page The displayed tests are: Table 4-1. Test Displays Display Test Performed Performed By NONE No test being performed LLB LLB tes

52 t Local unit RLB RLB test Local unit L
t Local unit RLB RLB test Local unit LLB + BERT LLB + BERT test Local unit RLB + BERT RLB + BERT test Local unit BERT BERT test Local unit �DTE - LLB LLB test Local DTE �DTE - RLB RLB test Local DTE REMOTE TEST To find out which specific test is run, scroll to: STATUS LEDS CHECK LEDS CHECK test Local unit Installation and Operation Manual Chapter 4 Configuration FOMi-40 Ver. 1.0 FOMi-40 Submenus 4-7 ALARM BUFFER NVRAM FAILEDNO INTERFACENO FIBER INTERFACEILLEGAL EXT CLKXILINX FAILEDFREQ. HOPPINGDEF. RATE 64K/1544K/2048KIR RATE MISMATCHNO MANAGEMENTDCD LOSSLINE DISCONNECTCONFIG MISMAT

53 CHDCD LOSS Figure 4-8. DCD LOSS Alarm D
CHDCD LOSS Figure 4-8. DCD LOSS Alarm Display The Config Matching menu is available only if there is a mismatch between the line settings of the local and remote modems. From this menu, you can configure both modems to the same parameters. In case of a configuration mismatch, the following screen appears: ALARM BUFFERLOCCONFIG MISMATCH Figure 4-9. CONFIG MISMATCH Display To match the configuration of the two modems: 1. Press the SCROLL button to display the following screen: Chapter 4 Configuration Installation and Operation Manual 4-8 FOMi-40 Submenus FOMi-40 Ver. 1.0 ALARM BUFFERLOCCONFIG MISMATCH LOC

54 Figure 4-10. CONFIG MATCHING Menu 2. Pr
Figure 4-10. CONFIG MATCHING Menu 2. Press the CURSOR button to reach the Parameters field. Using the SCROLL button, select the unit with the desired configuration settings. 3. Press the ENTER button to configure the units (a message will be displayed on the LCD, for a short while, while the units are configured). The unit returns to the ALARM BUFFER menu and the CONFIG MISMATCH failure alarm is erased. Both the local and the remote modems store configuration settings. Some of the parameters stored in a unit's configuration memory are the parameters of the DTE interface of the local modem and the remote mode

55 m. When the CONFIG MATCHING function is
m. When the CONFIG MATCHING function is selected, identical parameters are set for both modems. Installation and Operation Manual Chapter 4 Configuration FOMi-40 Ver. 1.0 FOMi-40 Submenus 4-9 LINE CONFIG Menu Figure 4-11. Line Config Menu The LINE CONFIG menu enables you to configure the line parameters. You can configure both the local modem and the remote modem, provided that both modems are connected and management is active. When the above conditions are met, the message "WAIT..." is displayed. At this time, the local modem sends new settings to the remote modem and receives acknowledgment. Once the

56 acknowledgment is received, the "" messa
acknowledgment is received, the "" message disappears and the new setting is displayed with an asterisk next to it. Alternatively, If only the local modem is connected, or if the management is not active, you can configure the local modem only. In such a case, the message will appear briefly on the LCD, for each parameter you set. nfigure your system, the party on the other side of the line is trying to modify the configuration, the message "" appears on ll not be able to modify the system configuration. You will be able to modify the configuration only when the other party finishes configuration procedure,

57 and either: Chapter 4 Configuration In
and either: Chapter 4 Configuration Installation and Operation Manual 4-10 FOMi-40 Submenus FOMi-40 Ver. 1.0 One minute has passed since the other party finished and the system returns back to STATUS, The other party scrolled out of the LINE CONFIG menu. Selecting the Clock Type k type for both the local and remote modem. T RCV, EXT RCV, RCV INT, and RCV EXT to designate the clock type as follows: Table 4-2. FOMi-40 Clock Type Settings Clock Type Setting Clock at This Modem A Clock at Opposite Modem B INT RCV Sourced from modem A Taken from line RCV INT Taken from line Sourced from modem B EXT RCV Com

58 es from DTE A interface Taken from line
es from DTE A interface Taken from line RCV EXT Taken from line Comes from DTE B interface The following applications illustrate FOMi-40 clock type settings: Figure 4-12. FOMi-40 Clock Type Settings FOMi-40 with the Ethernet interface module IR-ETH/QN does not support the external clock. To set the clock type: 1. Press the CURSOR button to move to the Menu field. 2. Press the SCROLL button until LINE CONFIG is displayed. Chapter 5 Configuring Typical Applications Installation and Operation Manual 5-2 Central Site Application FOMi-40 Ver. 1.0 Observe front panel indicator activity at power-up to verif

59 y that the units are operating properly.
y that the units are operating properly. 6. Configure the master and slave units following the procedures detailed in Chapter 35.2 Central Site Application below shows a network comprised of multiple point-to-point connections. In this application, each remote unit connects to a FOMi-40C card. All cards are mounted in the LRS-24 modem rack. The network described here accommodates 12 links managed from a central SNMP management station. Figure 5-2. Central Site Application with SNMP Management To install FOMi-40 in the central site application with SNMP management: 1. Prepare the central site installation b

60 y providing an LRS-24 hub containing up
y providing an LRS-24 hub containing up to 12 FOMi-40C high speed fiber optic modems. 2. Install FOMi-40C at the local site by making all connections to the local computer communications port and to the site fiber optic infrastructure. 3. Install FOMi-40 at the remote site by making all connections to remote computer communications port and to the site fiber optic infrastructure. 4. Connect the LRS-24 modem rack to the power source. 5. Connect the remote FOMi-40 units to the power source. 6. Observe front panel indicator activity at power-up to verify that the units are operating properly. 7. Connect the SNMP

61 management station to the LRS-24 modem r
management station to the LRS-24 modem rack. 8. Configure the lines connecting the central site and remote computers from the SNMP management station; follow the procedures detailed in the manual for the SNMP management software. Chapter 5 Configuring Typical Applications Installation and Operation Manual 5-4 Interface Conversion Application FOMi-40 Ver. 1.0 FOMi-40 Ver. 1.0 TESTS Menu 6-1 Chapter 6 Troubleshooting and This chapter describes the Test Menu, how to check normal system operation, to pment or cables and to identify other sources of system malfunction. 6.1 TESTS Menu Figure 6-1. Tests Me

62 nu The TESTS menu enables you to test th
nu The TESTS menu enables you to test the modems connected to your network equipment, including local and remote modems. You can activate the following tests from this menu: LLB Test to test the local modem by creating a local loopback to test both modems and the line between them LLB + BERT to measure the Bit Error Rate (BER) to measure the Bit Error Rate (BER) to measure the Bit Error Rate (BER) to test the modem LEDs. When a test is running from the TESTS menu, the LCD displays additional management informatType of test BER is displayed on the LCD of the local modem (if the remote modem is set to the ap

63 propriate TEST menu, BER will also be di
propriate TEST menu, BER will also be displayed on its LCD). When a test with BER measurement is performed, the LCD functions differently. The BER display erases part of the menu. Therefore, in order to restore the Chapter 6 Troubleshooting and Diagnostics Installation and Operation Manual 6-2 TESTS Menu FOMi-40 Ver. 1.0 Parameters field you must press the CURSOR button and then to press the SCROLL button to switch to OFF. When MANAGEMENT is inactive, only local tests can be performed (LEDs CHECK, LLB, LLB + BERT, BERT). The LLB test enables you to run a local loopback in order to test the local modem. To

64 run the LLB test: 1. Press the CURSOR bu
run the LLB test: 1. Press the CURSOR button to move to the Menu field. 2. Press the SCROLL button until TESTS is displayed. 3. Press the CURSOR button to move to the LOC/REM field. 4. Press the SCROLL button to select the local modem or the remote modem. TESTSMENU OPTIONSPARAMETERS ALARM BUFFERLINE CONFIGLOCDTE CONFIGTESTSSTATUSFigure 6-2. TESTS Menu (LLB) 5. Press the CURSOR button to move the Menu Options field. 6. Press the SCROLL button until LLB is displayed. Installation and Operation Manual Chapter 6 Troubleshooting and Diagnostics FOMi-40 Ver. 1.0 TESTS Menu 6-3 TESTSLLBLOCPARAMETERS RLBLLB+BERT

65 LOCRLB+BERTBERTLEDS CHECKLLBFigure 6-3.
LOCRLB+BERTBERTLEDS CHECKLLBFigure 6-3. LLB Test Menu 7. Press the CURSOR button to move to the Parameters field. 8. Use the SCROLL button to toggle between ON and OFF. TESTSLLBLOC LOCOFFFigure 6-4. Activating LLB Test 9. To start the LLB test, press the ENTER button when ON is displayed. The will be displayed on the local modem screen, and then an asterisk will appear next to the ON indication. 10. To stop the test, press the SCROLL button until OFF is displayed and then press the ENTER button. The message will be displayed on the local modem screen, and then an asterisk will appear next to the OFF indica

66 tion and the test will be terminated. C
tion and the test will be terminated. Chapter 6 Troubleshooting and Diagnostics Installation and Operation Manual 6-4 TESTS Menu FOMi-40 Ver. 1.0 Running the RLB Test The RLB test enables you to run a remote loopback, in order to test both modems and the line between the modems. TESTSMENU OPTIONSPARAMETERS ALARM BUFFERLINE CONFIGLOCDTE CONFIGTESTSSTATUSFigure 6-5. TESTS Menu (RLB) To run the RLB test: 1. Press the CURSOR button to move to the Menu field. 2. Press the SCROLL button until TESTS is displayed. 3. Press the CURSOR button to move to the LOC/REM field. 4. Press the SCROLL button to select the l

67 ocal modem or the remote modem. 5. Press
ocal modem or the remote modem. 5. Press the CURSOR button to move to the Menu Options field. 6. Press the SCROLL button untilRLB is displayed. TESTSRLBLOCPARAMETERS RLBLLB+BERTLOCRLB+BERTBERTLEDS CHECKLLBFigure 6-6. RLB Test Menu Installation and Operation Manual Chapter 6 Troubleshooting and Diagnostics FOMi-40 Ver. 1.0 TESTS Menu 6-5 7. Press the CURSOR button to move to Parameters field. 8. Press the SCROLL button to toggle between ON and OFF. TESTSRLBLOC LOCOFFFigure 6-7. Activating RLB Test 9. To start the RLB test, press the ENTER button when ON is displayed. The will be displayed on the local

68 modem screen, and then an asterisk will
modem screen, and then an asterisk will appear next to the ON indication. 10. To stop the test, press the SCROLL button until OFF is displayed and then press the ENTER button. The message appears on the local modem screen, followed by an asterisk next to the OFF indication. The test then terminates. Running the LLB +BERT Test The LLB +BERT test enables you to initiate a local loopback in order to the local modem. This test will also measure the BER and will display it on the Menu Options field. To run the LLB+BERT test: 1. Press the CURSOR button to move to the Menu field. 2. Press the SCROLL button until TES

69 TS is displayed. 3. Press the CURSOR but
TS is displayed. 3. Press the CURSOR button to move to the LOC/REM field. 4. Press the SCROLL button to select the local modem or the remote modem. 5. Press the CURSOR button to move to the Menu Options field. 6. Press the SCROLL button until LLB+BERT is displayed. Chapter 6 Troubleshooting and Diagnostics Installation and Operation Manual 6-6 TESTS Menu FOMi-40 Ver. 1.0 TESTSLLB+BERTPARAMETERS RLBLLB+BERTLOCRLB+BERTBERTLEDS CHECKLLBFigure 6-8. LLB + BERT Menu 7. Press the CURSOR button to move to the Parameters field. 8. Press the SCROLL button to toggle between ON and OFF. TESTSLLB+BERTON LOCOFFFigure

70 6-9. Activating LLB + BERT Test 9. To s
6-9. Activating LLB + BERT Test 9. To start the LLB+ BERT test, press the ENTER button when "ON" is displayed. The message appears on the local modem screen, followed by an asterisk next to the ON indication. The ERR LED will blink whenever an error is detected and the BER will be displayed on the LCD of both modems. Installation and Operation Manual Chapter 6 Troubleshooting and Diagnostics FOMi-40 Ver. 1.0 TESTS Menu 6-7 TESTS0.00E-9ON LOCFigure 6-10. LLB + BERT Test Display 10. To stop the test, press the SCROLL button until OFF is displayed and then press the ENTER button. The message appears on th

71 e local modem screen, followed by an ast
e local modem screen, followed by an asterisk next to the OFF indication. The test then terminates. Running the RLB +BERT Test The RLB +BERT test enables you to initiate a remote loopback in order to test both modems and the line between them. This test will also measure the BER and will display it in the Menu Options field. To run the RLB+BERT test: 1. Press the CURSOR button to move to the Menu field. 2. Press the SCROLL button until TESTS is displayed. 3. Press the CURSOR button to move to the LOC/REM field. 4. Press the SCROLL button to select the local modem or the remote modem. 5. Press the CURSOR butto

72 n to move to the Menu Options field. 6.
n to move to the Menu Options field. 6. Press the SCROLL button until RLB+BERT is displayed. Chapter 6 Troubleshooting and Diagnostics Installation and Operation Manual 6-8 TESTS Menu FOMi-40 Ver. 1.0 TESTSRLB+BERTLOCPARAMETERS RLBLLB+BERTLOCRLB+BERTBERTLEDS CHECKLLBFigure 6-11. RLB + BERT Menu 7. Press the CURSOR button to move to the Parameters field. 8. Press the SCROLL button to toggle between ON and OFF. TESTSRLB+BERTON LOCOFFFigure 6-12. Activating RLB + BERT Test 9. To start the RLB+ BERT test, press the ENTER button when ON is displayed. The message appears on the local modem screen, followed b

73 y an asterisk next to the ON indication.
y an asterisk next to the ON indication. The ERR LED will blink whenever an error is detected and the BER will be displayed on the LCD of both modems in the Menu Options field. Installation and Operation Manual Chapter 6 Troubleshooting and Diagnostics FOMi-40 Ver. 1.0 TESTS Menu 6-9 TESTS0.00E-9ON LOCFigure 6-13. RLB + BERT Test Display 10. To stop the test, press the SCROLL button until OFF is displayed and then press the ENTER button. The message appears on the local modem screen, followed by an asterisk next to the OFF indication. The test then terminates. Be aware that if you try to initiate a new t

74 est while a test is still running, the n
est while a test is still running, the new current test will stop and a new test will start. Running the BER Test The BER test is initiated by the user from the local modem. For this test, the pattern generator generates a message. The message is sent to the remote modem, and from the remote modem is returned by the remote DTE. When this test is performed, the remote DTE must be in a 511 mode of operation. The local DTE is disabled whenever this test is running. To run BER test: 1. Press the CURSOR button to move to the Menu field. 2. Press the SCROLL button until TESTS is displayed. 3. Press the CURSOR button

75 to move to the LOC/REM field. 4. Press
to move to the LOC/REM field. 4. Press the SCROLL button to select the local modem or the remote modem. Chapter 6 Troubleshooting and Diagnostics Installation and Operation Manual 6-10 TESTS Menu FOMi-40 Ver. 1.0 TESTSRLB+BERTPARAMETERS RLBLLB+BERTLOCRLB+BERTBERTLEDS CHECKLLBFigure 6-14. BERT Menu 5. Press the CURSOR button to move to the Menu Options field. 6. Press the SCROLL button until BERT is displayed. 7. Press the CURSOR button to move to the Parameters field. 8. Use the SCROLL button to toggle between ON and OFF. TESTSBERT LOCOFFFigure 6-15. Activating BER Test 9. To start the BER test, press

76 the ENTER button when "ON" is displayed.
the ENTER button when "ON" is displayed. The appears on the local modem screen, followed by an asterisk next to the ON indication. The ERR LED will blink whenever an error is detected and the BER will be displayed on the LCD of both modems. 10. To stop the test, press the SCROLL button until OFF is displayed and then press the ENTER button. The message appears on the local modem screen, followed by an asterisk next to the OFF indication. The test then terminates. Installation and Operation Manual Chapter 6 Troubleshooting and Diagnostics FOMi-40 Ver. 1.0 TESTS Menu 6-11 TESTS0.00E-9ON LOCFigure 6-16. BE

77 R Test Display If you try to initiate a
R Test Display If you try to initiate a new test (except for BER test) from the local modem or the remote modem, while a test is still running, the TEST ALREADY ON message will appear on the LCD and the new test will not be initiated. BER tests are the only tests that can be initiated simultaneously from both ends of the line. Each party can initialize his own test and each LCD will display the BERT in the Menu Options field. The LED check enables you to verify that the LED indicators on the front panel of the modem are operating. To check the LEDs: 1. Press the CURSOR button to move to the Menu field. 2. P

78 ress the SCROLL button until TESTS is di
ress the SCROLL button until TESTS is displayed. 3. Press the CURSOR button to move to the LOC/REM field. 4. Press the SCROLL button to select the local modem or the remote modem. 5. Press the CURSOR button to move to the Menu Options field. 6. Press the SCROLL button until LEDS CHECK is displayed. Chapter 6 Troubleshooting and Diagnostics Installation and Operation Manual 6-12 System Messages and Alarms FOMi-40 Ver. 1.0 TESTSLEDS CHECKPARAMETERS RLBLLB+BERTLOCRLB+BERTBERTLEDS CHECKLLBFigure 6-17. LEDS CHECK Menu 7. Press the ENTER button to start the LEDs check. All the LEDs initially light for three sec

79 onds and then return to their normal ope
onds and then return to their normal operation. The following applies whenever one of thThe LINE CONFIG menu is disabled and you will be unable to modify the line In order to start another test, you must stop the test currently running and only then enable a new test If you try to start a new test while a test is still running, the TEST ALREADY ON message will be displayed on the LCD If you try to run a test while a test is run by the party on the other side of the line, the TEST ALREADY ON message will be displayed on the LCD. 6.2 System Messages and Alarms FOMi-40 responds in real-time to changes in system

80 status. The system messages listed in o
status. The system messages listed in override the current menu display and appear, for the FOMi-40 front panel LCD. Chapter 6 Troubleshooting and Diagnostics Installation and Operation Manual 6-14 Loopback Tests FOMi-40 Ver. 1.0 6.3 Loopback Tests FOMi-40 supports several types of loopback tests for checking the operation of the data system equipment and its line circuits. These loopbacks test communication between connected equipment, internal circuitry of the local modem and the circuitry of the remote modem. Before running the loopback tests: Verify that the DTE is operating properly and can be used

81 for a test. Do not perform tests with fa
for a test. Do not perform tests with faulty equipment. Ensure that all units are powered up and are configured correctly. Loopback tests are best peThe local analog loopback (LLB) test checks the performance of the local FOMi-40 modem, the local DTE and the connections between them. It is performed separately at the local and the remote site. To run an LLB: Activate the LLB loopback When LLB is initiated, the TEST LED lights up to indicate that the FOMi-40 digital interface is now operationally connected to the adjacent DTE via most of the modem circuits Figure 6-18).This test can also be activated via the a

82 ppropriate pin on the DTE interface. Ac
ppropriate pin on the DTE interface. Activation of an LLB via the appropriate pin on the DTE is not available when using X.21B, G.703 or Ethernet interfaces. If a fault is detected, repeat the LLB test using external BERT equipment. If the BER test indicates an error-free data stream, but the test using DTE indicates a fault, verify that the cable between the DTE and FOMi-40 is not faulty or improperly connected. If the problem persists, follow the DTE manufacturer's test procedures to isolate the fault. To identify a problem in the communication line: Perform the LLB test at the remote end of the line. If

83 both LLB tests are error-free, the fault
both LLB tests are error-free, the fault is in the communication link or in the line interface. Chapter 6 Troubleshooting and Diagnostics Installation and Operation Manual 6-18 Troubleshooting FOMi-40 Ver. 1.0 6.5 Troubleshooting This section lists some possible failures, and describes their symptoms and the corrective measures the user should take in order to overcome these failures. Table 6-3 lists the failures and the required corrective actions. Table 6-3. Troubleshooting Chart No. Symptom Possible Failure Corrective Action 1 Power LED is Off. Blown fuses Replace the fuses. The fuse on a standalone

84 AC unit is on the rear panel. On a stand
AC unit is on the rear panel. On a standalone DC unit the fuses are on the PCB, close to the power input 2 ERR LED is lit and CONFIG MISMATCH alarm is stored in The parameters set for both modems are not Set the parameters on both modems by using the CONFIG MATCHING option or manually parameter by parameter. 3 ERR LED is lit and LINE DISCONNECT alarm is stored in The line between the modems is not connected properly. Check that the line is properly 4 ERR LED is lit and DCD LOSS The line between the modems is not connected properly. Check that the line is properly 5 ERR LED is lit and NO MANAGEMENT alarm is

85 stored in The line between the in FOM-4
stored in The line between the in FOM-40 (I Type-No). Check that the line is properly 6 ERR LED is lit and NVRAM FAILED alarm is stored in the Hardware failure Replace the unit. 7 ERR LED is lit and NO INTERFACE DTE interface, which is not supported by the Connect a DTE interface, which is supported by the modem. 8 ERR LED is lit and NO FIBER INTERFACE alarm is stored in No fiber optic interface, or a fiber optic interface, which is not supported by the modem. Connect a fiber optic interface, which is supported by the modem. 9 ERR LED is lit up an ILLEGAL EXT CLK alarm is stored in the Alarm There is no e

86 xternal clock frequency is not supported
xternal clock frequency is not supported by the Check that an external clock is connected to the modem and that its frequency is one of those supported by the modem. FOMi-40 Ver. 1.0 V.24, V.35, X.21 and RS-530 DTE Interface Connectors A-1 Appendix A Pinouts A.1 V.24, V.35, X.21 and RS-530 DTE Interface Connectors lists the pin assignments of the V.24/RS-232, V.35, X.21 and RS-530 interface connectors. Table A-1. DTE Interface Signal Assignments V.24 V.35 RS-530 X.21 Description Signal Function DB-25 Standalone and Card Cage DB-25 Card Cage 34-Pin Standalone Pin Circuit DB-

87 25 Standalone and Card Cage Pin
25 Standalone and Card Cage Pin Circuit DB-25 Card Cage DB-15 Standalone Pin Circuit (Function) Protective 1 1 A Frame 101 1 1 1 ---- (Shield) Chassis Ground. It may be isolated from Signal Signal 7 7 B Signal 102 GND 7 AB 7 8 ---- (GND) Common signal and DC power supply ground. Transmitted P TD(A) 103 S TD(B) 103 2 BA(A) 14 BA(B) 2 T(A) 9 T(B) (Transmit) Serial digital data from DTE. In sync applications, the data translations must

88 occur on the rising edge of the transmit
occur on the rising edge of the transmit clock. R RD(A) 104 T RD(B) 104 3 BB(A) 16 BB(B) 4 R(A) 11 R(B) (Receive) Serial output from the modem receiver. In sync rising edge of FOMi-40 Ver. 1.0 Appendix B IR-ETH/QN Interface B.1 Introduction The IR-ETH/QN interface module includes a high performance self-learning Fast Ethernet bridge, which is connected to the LAN via a single 10BaseT or 100BaseT port, operating in full- or half-duplex and providing simple and cost-effective interconnection between 10/100BaseT LANs. The IR-ETH/QN interface module also supports

89 IEEE 802.1/P frames and IEEE 802.1/Q fr
IEEE 802.1/P frames and IEEE 802.1/Q frames, enabling VLAN applications. The module automatically learns MAC addresses of the LAN to which it is connected. Its LAN table stores up to 1,024 addresses with 5-minute automatic aging. Filtering and forwarding is performed at the maximum theoretical rate of 150,000 packets per second (wire speed). The buffer with 0.512 Mbit SRAM can hold 85 frames with a throughput latency of one frame. The forwarding of the multicast messages from LAN to WAN can be disabled. shows a typical application using FOMi-40 with IR-ETH/QN module. FOMi-40FOMi-40Fiber Optic Cable Figure B

90 -1. Typical Application of FOMi-40 with
-1. Typical Application of FOMi-40 with IR-ETH/QN Module Appendix B IR-ETH/QN Interface Module Installation and Operation Manual B-2 Technical Specifications FOMi-40 Ver. 1.0 B.2 IR-ETH/QN Connector shows the rear panel of FOMi-40, lists the module's RJ-45 connector pinout. TXRX A CTLINK 100MIR-ETH/QN Figure B-2. Rear Panel of FOMi-40 with IR-ETH/QN Module Table B-1. RJ-45 Connector Pinout Pin Signal Function 1 RD (+) Receive Data (positive) 2 RD (-) Receive Data (negative) 3 TD (+) Transmit Data (positive) 6 TD (-) Transmit Data (negative) B.3 Technical Specifications Bridge LAN Table 1,024 M

91 AC addresses Aging 5 minute, automatic 1
AC addresses Aging 5 minute, automatic 150,000 packets per second 85 frames 1 frame Standard IEEE 802.3/Ethernet V.2, IEEE 802.1q (relevant parts), Data Rate 10BaseT: 10 Mbps (20 Mbps in full-duplex) 100BaseT: 100 Mbps (200 Transmission Line 4-wire, Category 5 UTP, 19 AWG to 26 AWG Installation and Operation Manual Appendix B IR-ETH/QN Interface Module FOMi-40 Ver. 1.0 Installation and Operation B-5 LED Indicators lists the IR-ETH/QN rear-panel LED indicators and describes their functions. Table B-4. LED Indicators LED Name Color Description Location LINK Green ON – LAN is connected to the IR-ETH/Q

92 N module Connector ACT Yellow ON –
N module Connector ACT Yellow ON – LAN is receiving/transmitting data Connector 100M Green ON – LAN is operating at 100 Mbps OFF – LAN is operating at 10 Mbps The front panel RTS LED indicates the LAN speed: ON – LAN speed is 10 Mbps (full- or half-duplex) OFF – LAN speed is 100 Mbps (full- or half-duplex). Use either a straight cable or a cross cable for the LAN connection. Use a cross cable when connecting to a port that does not implement the crossover function internally. Otherwise, use a straight cable. Hubs usually implement the crossover function internally, while NICs

93 and other devices do not. Note Note F
and other devices do not. Note Note FOMi-40 Ver. 1.0 IR-E1/G703 Connector Options C-1 Appendix C IR-E1/G703 Interface IR-E1/G703 is an interface module for the FOMi-40 modems that converts G.703 E1 unframed signals to TTL levels. The converted data is sent over the modem link using the modem's modulation technique. It is then converted back at the other end into G.703 E1 at 2048 kbps signals. C.1 IR-E1/G703 Connector Options The IR-E1/G703 interface module fits into a standalone modem, and is available with two types of physical connections: RJ-45 for balanced twisted pair connection and BNC for unbalanc

94 ed coaxial connection. FOMi-40 rear pane
ed coaxial connection. FOMi-40 rear panel with IR-E1/G703 interface module. lists the RJ-45 connector pinout. TXRX G.703 E1TX OUTRX INFigure C-1. Rear Panel of FOMi-40 with IR-E1/G703 Module Table C-1. RJ-45 Connector Pinout Pin Name Function 1 RX (+) Receive Data Positive 2 RX (-) Receive Data Negative 4 TD (+) Transmit Data Positive 5 TD (-) Transmit Data Negative Appendix D IR-G.703/CO Interface Module Installation and Operation Manual D-2 Selecting the IR-G.703/CO Timing FOMi-40 Ver. 1.0 D.2 Selecting the IR-G.703/CO Timing The IR-G.703/CO interface module can operate with EXT or INT/RCV timi

95 ng to match the clock reference of the F
ng to match the clock reference of the FOMi-40 modem. The clock selection is made via the JP1 jumper located on the module board (see JP1INT/RCVEXT Figure D-2. JP1 Location on the IR-G.703/CO Board EXT Timing The EXT clock is used in applications, where the system timing is provided by the G.703 network. The IR-G.703/CO module has an internal buffer to compensate for the phase delay introduced to the system by the line delay between the two modems. The buffer is an 8-bit FIFO connected as shown in You must configure the IR-G.703/CO module to the EXT clock if the FOMi-40 modem is also set to the external timi

96 ng. Timing SourceTX DataRX Data G.703Co
ng. Timing SourceTX DataRX Data G.703Codirectional64 kbps Network FIFOEXT Clock ModeRCV Clock ModeClock InClockOutModem AModem B ClockRecoveryDataDataCLK ClockRecoveryFIFO IR-G.703 Module ClockRecoveryFigure D-3. IR-G.703/CO EXT Timing Installation and Operation Manual Appendix D IR-G.703/CO Interface Module FOMi-40 Ver. 1.0 Selecting the IR-G.703/CO Timing D-3 INT/RCV Timing The INT/RCV clock is used in applications where the G.703 codirectional 64 kbps equipment connected to the modem recovers the clock signal from the modem link. This mode is used mainly when the attached equipment has a G.703 codirec

97 tional interface, but is not able to pro
tional interface, but is not able to produce clock signals. The module has an 8-bit FIFO buffer to compensate for the phase delay introduced by the G.703 illustrates the buffer connection and the required application You must configure the IR-G.703/CO module to the INT/RCV clock if the FOMi-40 modem is set to the internal or receive timing. RX DataTX Data INT or RCVClock Mode EXT, INT or RCVClock Mode(Depending on theattached network)Modem A Equipmentwith G.703InterfaceLINKSideG.703SideDTESide INT/RCV Clock ModeModem B Clock InClockOutIR-G.703 Module DataClockRecovery FIFO ClockRecovery DataCLKFIFO Figure D

98 -4. IR-G.703/CO INT/RCV Timing Appendi
-4. IR-G.703/CO INT/RCV Timing Appendix E IR-X.21B Interface Module Installation and Operation Manual E-2 Selecting the IR-X.21B Timing FOMi-40 Ver. 1.0 Pin ID Function 7 A External Timing 8 GND Common 9 B Transmit B 10 B Control B 11 B Receive B 12 B Indication B 13 B Signal Timing B 14 B External Timing E.2 Selecting the IR-X.21B Timing IR-X.21B interface module supports two clock modes: INT/LBT (Internal/Receive). You must set the IR-X.21B clock to match the timing you have selected for the FOMi-40 modem. The clock settings are made via the JP2 jumper located on the IR-X.21B board, as shown

99 in JP2EXTINT/LBTFigure E-3. IR-X.21B
in JP2EXTINT/LBTFigure E-3. IR-X.21B Module Layout 24 Raoul Wallenberg Street Tel: +972-3-6458181, Fax +972-3-6483331, +972-3-6498250 erika_y@rad.com, Web site: http://www.rad.com Customer Response Form RAD Data Communications would like your help in improving its product documentation. Please complete and return this form by mail or by fax or send us an e-mail with your comments. Thank you for your assistance! Manual Name: FOMi-40 Ver. 1.0 Publication Number: 315-200-04/07 Please grade the manual according to the following factors: Excellent Good Fair Poor Very Poor Installation instructions Operating

100 instructions Manual organization Illustr
instructions Manual organization Illustrations The manual as a whole What did you like about the manual? Error Report Incompatibility with product Difficulty in understanding text Regulatory information (Safety, Compliance, Warnings, etc.) Missing information Style (spelling, grammar, references, etc.) Type of error(s) or Other und (information missing, unclear or inadequately explained, etc.) and attach the page to your fax, if necessary. Please add any comments or suggestions you may have. Other Who is your distributor? Your name and company: Job title: Address: Direct telephone nu