ADC KENTROX

DATASMART MODEL 72680

Card Type                  T1 DSU
Chip Set                   Unidentified
I/O Options                AC power connector, 9-pin serial ports (2), V.35
                           data port

                           T1 network interface via 15-pin connector
T1 Transfer Rate           1.544Mbps
T1 Line Coding             AMI, B8ZS
Frame type                 ESF, SF
Data Bus                   External

[Image]

                                CONNECTIONS

          Function             Label            Function           Label

  DCE serial port               CN1     V.35 data port              CN4

  T1 network port (15-pin       CN2     AC power connector          CN5
  connector)

  DTE serial port               CN3

                             DIAGNOSTIC LED(S)

   LED        Color           Status                 Condition

   PWR        Green             On                  Power is on

   PWR         Red              On           Equipment failure occurred
                                                 during self test

   PWR        Green          Blinking            User is logged in

   PWR      Red/Green        Blinking        Software is being loaded

   PWR         Red           Blinking        Unit is conducting a test

   PWR         N/A             Off                 Power is off

   T1          Red              On         LOS, OOF, AIS or yellow alarm
                                                condition detected

   T1          Red             Off         LOS, OOF, AIS or yellow alarm
                                              condition not detected

   TD         Yellow            On         Data is being transmitted from
                                                the data port (CN5)

   TD         Yellow           Off         Data is not being transmitted
                                             from the data port (CN5).
                                               Indicative of all zero
                                            condition if RTS and CTS are
                                                       high.

   RD         Yellow            On         Data is being received at the
                                                  data port (CN5)

   RD         Yellow           Off         Data is not being recieved at
                                          the data port (CN5). Indicative
                                            of all zero condition if RTS
                                                 and CTS are high.

   CTS        Yellow            On         CTS signal is high. Unit ready
                                                   to send data

   CTS        Yellow           Off               CTS signal is low

   RTS        Yellow            On              RTS signal is high

   RTS        Yellow           Off               RTS signal is low