RAD DATA COMMUNICATIONS

FCD-E1/2/E1

Card Type                  CSU/DSU
Chip Set                   Unidentified
I/O Options                AC power connector, 25-pin connectors (2
                           RS-530), BNC connectors (4)

                           9-pin serial ports (2 RS-232),

                           E1 network interface via RJ-48 connectors (4)
E1 Transfer Rate           2.048Kbps
E1 Protocol                HDB3
Frame type                 CRC-4
Data Bus                   External

[Image]

                                CONNECTIONS

         Function            Label            Function            Label

  AC power connector          CN1     DCE serial port              CN10

  DTE serial port             CN2     Sub network port via         CN11
                                      RJ-48 connector

  Channel 1 port (25-pin      CN3     Main network port via        CN12
  connector)                          RJ-48 connector

  Channel 2 port (25-pin      CN4     BNC connector -              RXIN
  connector)                          unbalanced receive in

  Header connector to sub     CN5     BNC connector -             RXOUT
  link interface board                unbalanced receive out

  Header connector to CH2     CN6     BNC connector -              TXIN
  interface board                     unbalanced transmit in

  Header connector to CH2     CN7     BNC connector -             TXOUT
  interface board                     unbalanced transmit out

  Header connector to CH2     CN8     Power switch                 SW2
  interface board

  Header connector to CH2     CN9
  interface board

                        USER CONFIGURABLE SETTINGS

                  Setting                      Label         Position

  »   Signal ground is connected to the         JP8           Closed
      frame ground

      Signal ground is not connected to         JP8            Open
      the frame ground

  »   Transmit side ground reference set        JP9            Open
      for balanced interface

      Transmit side ground reference set        JP9           Closed
      for unbalanced interface

  »   Receive side ground reference set        JP10            Open
      for balanced interface

      Receive side ground reference set        JP10           Closed
      for unbalanced interface

  »   Front panel push-buttons enabled         JP77            Open

      Front panel push-buttons disabled        JP77           Closed

  »   Supervisor ports operate according       S1/1             Off
      to user-defined parameters

      CSU/DSU uses default parameters          S1/1             On
      stored in its EPROM

  »   Default password enabled.                S1/2             On
      Password=RAD

      User password enabled                    S1/2             Off

  »   Loads user-selected parameters from      S1/3             Off
      NVRAM on power-up

      Loads default parameters stored in       S1/3             On
      its EPROM on power-up

  »   Factory configured - do not alter        S1/4             Off

                            MAIN LINK INTERFACE

    Function       JP7     JP12/A   JP12/B   JP12/C   JP12/D   JP33   JP35

  »    Balanced    Open     Open    Closed    Open    Open     2 &    2 &
      interface                                                 3      3

      Unbalanced  Closed    Open     Open     Open    Closed   1 &    1 &
      interface                                                 2      2

  Note: Pins designated are in the closed position

                                ALARM RELAY

                    Function                         JP51         JP52

  »    Alarm relay disconnected. DTE port (CN2)      2 & 3        2 & 3
             provides full functionality

       Alarm relay connected instead of DCD and      1 & 2        1 & 2
                      CTS lines

  Note: Pins designated are in the closed position

                             DIAGNOSTIC LED(S)

   LED          Color          Status               Condition

   LOC1      Unidentified        On        Local synchronization lost on
                                                    main link

   LOC1      Unidentified       Off      Local synchronization OK on main
                                                       link

   REM1      Unidentified        On       Remote synchronization lost on
                                                    main link

   REM1      Unidentified       Off        Remote synchronization OK on
                                                    main link

   LOC2      Unidentified        On        Local synchronization lost on
                                                     sub link

   LOC2      Unidentified       Off       Local synchronization OK on sub
                                                       link

   REM2      Unidentified        On       Remote synchronization lost on
                                                     sub link

   REM2      Unidentified       Off      Remote synchronization OK on sub
                                                       link

   ALM       Unidentified        On         Alarm condition detected on
                                                     network

   ALM       Unidentified       Off       Alarm condition not detected on
                                                     network

            TUnidentified        On        Device loopback test active

   TST       Unidentified       Off      Device loopback test not running

[Image]

SUB LINK INTERFACE BOARD

                                CONNECTIONS

          Function            Label            Function            Label

  Header connector to         CN14     Line side protection fuse    F3
  mainboard

  Line side protection fuse    F1      Line side protection fuse    F4

  Line side protection fuse    F2

                            SUB LINK INTERFACE

    Function        J9     JP12/A   JP12/B   JP12/C   JP12/D   JP16   JP17

  »    Balanced    Open     Open    Closed    Open    Open     2 &    2 &
      interface                                                 3      3

      Unbalanced  Closed    Open     Open     Open    Closed   1 &    1 &
      interface                                                 2      2

  Note: Pins designated are in the closed position

                        USER CONFIGURABLE SETTINGS

                 Setting                      Label          Position

  »   Transmit side ground reference set       JP8             Open
      for balanced interface

      Transmit side ground reference set       JP8            Closed
      for unbalanced interface

  »   Receive side ground reference set       JP10             Open
      for balanced interface

      Receive side ground reference set       JP10            Closed
      for unbalanced interface

[Image]

CHANNEL 2 INTERFACE BOARD

                                CONNECTIONS

          Function            Label            Function            Label

  Header connector to         CN15     Header connector to         CN17
  mainboard                            mainboard

  Header connector to         CN16     Header connector to         CN18
  mainboard                            mainboard