ADTRAN

TSU

Card Type                 T1 DSU/CSU
Chip Set                  Unidentified
I/O Options               V.35 DTE port, test jack - in, test jack - out,
                          RJ-48 control ports (2),

                          T1 network interface via RJ-48, power
Maximum Data Rate         1.544Mbps
Line Coding               AMI, B8ZS
Framing                   D4, ESF
Data Bus                  External

[Image]

                                CONNECTIONS

         Function             Label            Function            Label

  T1 network port (RJ-48)      CN1     Control port - chain out     CN6
                                       (RJ-48)

  Test jack - in               CN2     V.35 DTE port                CN7

  Test jack - out              CN3     Power                        CN8

  Test jack - monitor          CN4     Power switch                 SW1

  Control port - chain in      CN5
  (RJ-48)

                             DIAGNOSTIC LED(S)

   LED        Color        Status                 Condition

   PWR     Unidentified      On                  Power is on

   PWR     Unidentified      Off                 Power is off

   ERR     Unidentified      On        Error has been detected within 1
                                                    second

   ERR     Unidentified      Off     Error has not been detected within 1
                                                    second

   ALM     Unidentified      On      Alarm condition detected on network

   ALM     Unidentified      Off        Alarm condition not detected on
                                                   network

   LB      Unidentified      On      Device is conducting a loopback test

   LB      Unidentified      Off      Device is not conducting a loopback
                                                     test

   TD      Unidentified      On         DTE data is being transmitted

   TD      Unidentified      Off      DTE data is not being transmitted

   RD      Unidentified      On           DTE data is being received

   RD      Unidentified      Off        DTE data is not being received

   RS      Unidentified      On                RTS signal high

   RS      Unidentified      Off                RTS signal low

   CS      Unidentified      On                CTS signal high

   CS      Unidentified      Off                CTS signal low