RAD DATA COMMUNICATIONS

FCD-T1/1/T1

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

                      serial ports (2), RJ-48 network interface (2)
T1 Transfer Rate      1.544Mbps
T1 Protocol           AMI, Transparent, B7ZS, B8ZS
Frame type            D4
Data Bus              External

[Image]

                                CONNECTIONS

          Function            Label            Function           Label

  AC power connector           CN1      Network port via RJ-48     CN4
                                        connector

  Serial port 1                CN2      Serial port 2              CN5

  25-pin connector             CN3      Power switch               SW2

                        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

  »   Front panel push-buttons are             JP77          Pins 1 & 2
      enabled                                                 closed

      Front panel push-buttons are             JP77          Pins 2 & 3
      disabled                                                closed

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

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

      User password enabled                    S1/2             Off

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

  »   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

                                ALARM/RELAY

               Function                      JP51              JP52

  »     Alarm relay is disconnected.      Pins 2 & 3        Pins 2 & 3
          DTE serial port 1 (CN2)           closed            closed
        provides full functionality

          Alarm relay is connected        Pins 1 & 2        Pins 1 & 2
       instead of DCD and CTS lines.        closed            closed
       Polled communication disabled

                             DIAGNOSTIC LED(S)

    LED          Color          Status               Condition

   RED 1      Unidentified        On         DSU/CSU is detecting a red
                                             alarm condition on the main
                                                        link

   RED 1      Unidentified        Off      DSU/CSU is not detecting a red
                                             alarm condition on the main
                                                        link

   YEL 1      Unidentified        On        DSU/CSU is detecting a yellow
                                             alarm condition on the main
                                                        link

   YEL 1      Unidentified        Off        DSU/CSU is not detecting a
                                            yellow alarm condition on the
                                                     main link

   RED 2      Unidentified        On         DSU/CSU is detecting a red
                                             alarm condition on the sub
                                                        link

   RED 2      Unidentified        Off      DSU/CSU is not detecting a red
                                             alarm condition on the sub
                                                        link

   YEL 2      Unidentified        On        DSU/CSU is detecting a yellow
                                             alarm condition on the sub
                                                        link

   YEL 2      Unidentified        Off        DSU/CSU is not detecting a
                                            yellow alarm condition on the
                                                      sub link

    ALM       Unidentified        On        DSU/CSU is detecting an alarm
                                              condition in the system

    ALM       Unidentified        Off        DSU/CSU is not detecting an
                                           alarm condition in the system

            TSUnidentified        On          DSU or CSU loopback test
                                                       active

    TST       Unidentified        Off       DSU or CSU loopback test not
                                                      running

[Image]

VER.X.21

         CONNECTIONS

      Function         Label

  15 pin connector      CN9

[Image]

VER. V.35

         CONNECTIONS

      Function         Label

  34 pin connector      CN9

                       MISCELLANEOUS TECHNICAL NOTES

  If an additional port is required, the single port module may be
  replaced with a dual port module. V.35, X.21, or RS-530 interfaces are
  available for the FCD/T1 unit