
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

