RAD DATA COMMUNICATIONS

ACD-2

Card Type         CSU/DSU
NIC Type          DDS
Chip Set          Unidentified
I/O Options       AC power connector, 25-pin connector,

                  network interface via RJ-48 connector
Wiring Type       RJ-48 120ohm shielded twisted pair
Maximum Data Rate 56Kbps
Data Bus          External

[Image]

                                CONNECTIONS

         Function            Label             Function             Label

  AC power connector          CN1     Network interface via         CN3
                                      RJ-48 connector

  DTE/DCE serial port         CN2     Unidentified                  J2C
  (25-pin connector)

                        USER CONFIGURABLE SETTINGS

                 Setting                      Label          Position

  »   Signal ground is connected to the        JP1          Pins 2 & 3
      frame ground                                            closed

      Signal ground is not connected to        JP1          Pins 1 & 2
      the frame ground                                        closed

      CTS forced high; RTS is ignored         SW2/4             On

      CTS follows RTS                         SW2/4            Off

                               DTE INTERFACE

       Function             J1A, J1B        J2A, J2B         J3A, J3B

  »    V.35 interface         Board           Open             Open
                           connected

      RS-422 interface        Open                  Board      Open
                                                    connected

      RS-232 interface        Open                  Open       Board
                                                             connected

               DATA RATE

   Setting     SW2/1    SW2/2    SW2/3

   2400bps      On       On       On

   4800bps      Off      On       On

   9600bps      On       Off      On

  19.2Kbps      Off      Off      On

  56.0Kbps      On       On      Off

                              TEST SELECTOR

                  Function                      Label         Position

         Digital loopback initiated              SW1              1

  Normal operation. Loopback not activated       SW1              2

      Activates local analog loopback            SW1              3

                             DIAGNOSTIC LED(S)

   LED       Color       Status                  Condition

   PWR       Green         On                   Power is on

   PWR       Green        Off                   Power is off

   RTS       Yellow        On                RTS signal is high

   RTS       Yellow       Off                RTS signal is low

   CTS       Yellow        On                CTS signal is high

   CTS       Yellow       Off                CTS signal is low

   DCD       Yellow        On                DCD signal is high

   DCD       Yellow       Off                DCD signal is low

   TD        Yellow        On      Data is being transmitted by local DTE

   TD        Yellow       Off      Data is not being transmitted by local
                                                    DTE

   RD        Yellow        On      Data is being received from remote DTE

   RD        Yellow       Off      Data is not being received from remote
                                                    DTE

   ALM        Red          On      OOS or OOF alarm condition detected on
                                                  network

   ALM        Red         Off          OOS or OOF alarm condition not
                                            detected on network

   TST        Red          On           Device is conducting a test

   TST        Red         Off         Device is not conducting a test