
RAD DATA COMMUNICATIONS

FCD-1L

Card Type               T1 CSU/DSU
Chip Set                Unidentified
I/O Options             AC power connector, 25-pin connector (RS-530),

                        T1 network interface via RJ-48 connector
Wiring Type             RJ-48 120ohm shielded twisted pair
T1 Transfer Rate        1536Kbps (supports multiples of 56Kbps or 64Kbps)
T1 Protocol             AMI, B8ZS, B7ZS
Frame Type              ESF, D4SF
Data Bus                External

[Image]

                                CONNECTIONS

         Function            Label             Function             Label

  Analog loopback             ANA      Digital loopback             DIG
  activation push-button               activation push-button

  Alarm clear push-button     CLR      Maintenance connector         J1

  AC power connector          CN1      Test pattern activation      PATT
                                       push-button

  DTE/DCE serial port         CN2      Remote digital loopback      REM
  (25-pin connector)                   activation push-button

  Network interface via       CN3      Power switch                 SW2
  RJ-48 connector

  Note: FCD-1L also available with DC power connector

                        USER CONFIGURABLE SETTINGS

                 Setting                    Label           Position

     Front panel switches enabled           JP2       Pins 1 & 2 closed

      Front panel switches disabled          JP2       Pins 2 & 3 closed

     Watchdog enabled                       JP5       Pins 1 & 2 closed

      Watchdog disabled                      JP5       Pins 2 & 3 closed

     Debug self test mode disabled          JP7       Pins 2 & 3 closed

      Debug self test mode enabled           JP7       Pins 1 & 2 closed

     Phantom power feeding is disabled      JP19             Open

      Phantom power feeding is enabled       JP19            Closed

     Signal ground is connected to the      JP23      Pins 2 & 3 closed
      frame ground

      Signal ground is not connected to      JP23      Pins 1 & 2 closed
      the frame ground

     CTS forced high                        S7/3              On

      CTS follows remote RTS                 S7/3             Off

     Fast synchronization timing (1         S7/4             Off
      sec)

      AT&T TR-62411 synchronization          S7/4              On
      timing (10 sec)

     Multiframe ESF mode enabled            S7/5             Off

      Multiframe D4 (SF) mode enabled        S7/5              On

     Factory configured - do not alter      S7/8         Unidentified

     Nx64 mode                             S11/1             Off

      Nx56 mode                             S11/1              On

     Loopback timing mode enabled          S11/2              On

      Internal clock mode enabled           S11/2             Off

     Time slot allocation is               S11/3              On
      sequential, starting from slot 1

      Data is inserted in alternate         S11/3             Off
      time slots, starting from slot 1

     Factory configured - do not alter     S11/4         Unidentified

                                 BAUD RATE

                  Setting                         S6              S9

                 Unframed                          0              0

     Operational baud rate set to 1x64                  0         1

     Operational baud rate set to 2x64                  0         2

     Operational baud rate set to 3x64                  0         3

     Operational baud rate set to 4x64                  0         4

    Operational baud rate set to 20x64                  2         0

    Operational baud rate set to 21x64                  2         1

    Operational baud rate set to 22x64                  2         2

    Operational baud rate set to 23x64                  2         3

    Operational baud rate set to 24x64                  2         4

  Note:

  Multiples of 56Kbps or 64Kbps, up to 24 may be selected, for a maximum
  of 1344Kbps for multiples of 56Kbps or a maximum of 1536Kbps for
  multiples of 64Kbps. 25-99 are not used.

                               DTE INTERFACE

   Function          J2             J3             J4             J5

    V.35 DTE        Open           Open           Board          Board
   interface                                   connected      connected

     RS-422         Board          Board                Open     Open
   interface      connected      connected

                                 IDLE CODE

    Setting      S8/1   S8/2    S8/3   S8/4    S8/5   S8/6   S8/7   S8/8

     Default    Off    Off     Off    Off     Off    Off    Off     Off
        idle
       code

  Note: On=0, Off=1. Switch S8/1 is the most significant bit. Switch S8/2
  is the least significant bit. Values are currently unidentified.

                              LOOP ACTIVATION

                Setting                       JP16              JP17

          Loop activation enabled                  Pins     Pins 2 & 3
                                                    2 &        closed
                                                     3
                                                    closed

          Loop activation disabled                  Pins     Pins 1 & 2
                                                    1 &        closed
                                                     2
                                                    closed

                                PORT TIMING

                 Setting                       S7/1             S7/2

               DTE1 port timing                 On               On

              DCE port timing                       On          Off

               DTE2 port timing                      Off         On

                            SOUND CONFIGURATION

                   Net build                               S12

                       0dBm                                0

                      -7.5dBm                               1

                       -15dBm                               2

                      -22.5dBm                              3

                           ZERO SUPPRESSION MODE

                  Setting                        S7/6            S7/7

            Transparent suppression               On              On

                      B7ZS                             On        Off

                     B78S                             Off        On

                             DIAGNOSTIC LED(S)

   LED         Color          Status                Condition

   PWR      Unidentified        On                 Power is on

   PWR      Unidentified        Off                Power is off

   RTS      Unidentified        On             RTS input line is on

   RTS      Unidentified        Off           RTS input line is off

   TST      Unidentified        On         Device is conducting a test

   TST      Unidentified        Off      Device is not conducting a test

   ERR      Unidentified        On          Error detected in the test
                                                     pattern

   ERR      Unidentified        Off       Error not detected in the test
                                                     pattern

   RED      Unidentified        On        Red alarm condition detected by
                                                   local FCD-1L

   RED      Unidentified        Off      Red alarm condition not detected
                                                 by local FCD-1L

   YEL      Unidentified        On        Yellow alarm condition detected
                                                 by remote FCD-1L

   YEL      Unidentified        Off         Yellow alarm condition not
                                            detected by remote FCD-1L

   SES      Unidentified        On         Severe error second detected

   SES      Unidentified        Off      Severe error second not detected

   MIN      Unidentified        On        Minor alarm condition detected.
                                              Remains lit until fault
                                           condition disappears, or CLR
                                                 button is pushed

   MIN      Unidentified        Off          Minor alarm condition not
                                                     detected

   MAJ      Unidentified        On        Major alarm condition detected.
                                              Remains lit until fault
                                           condition disappears, or CLR
                                                 button is pushed

   MAJ      Unidentified        Off          Major alarm condition not
                                                     detected

