
ADC KENTROX

DATASMART MODELS 7856X, 7876X (ADD/DROP)

Card Type        T1 CSU/DSU
Chipset          Unidentified
T1 Transfer Rate 1.544Mbps
T1 Protocol      Unidentified
Frame Type       Unidentified
Data Bus         Serial

[Image]

                                CONNECTIONS

         Function             Label           Function            Label

  Monitor receive              CN1      V.35 serial data port      CN9
  equalization in jack                  2

  Monitor receive network      CN2      V.24 DCE serial            CN10
  out jack                              control port

  Monitor monitor jack         CN3      V.24 DTE serial            CN11
                                        control port

  Monitor transmit             CN4      AC or DC power in          CN12
  equalization out jack                 (depends on model)

  Monitor transmit network     CN5      T1 line out (network       CN13
  in jack                               interface)

  Monitor transmit monitor     CN6      T1 line in (terminal       CN14
  jack                                  interface)

  Auxiliary jack (see          CN7      Alarm cutoff switch         S3
  pinout below)

  V.35 serial data port 1      CN8

                                CN1 PINOUT

          Function              Pin             Function            Pin

  Positive external clock in     1      Not used                     6

  Negative external clock in     2      Alarm signal common          7

  Chassis ground                 3      Normally open alarm          8
                                        contact

  Signal ground                  4      Normally closed alarm        9
                                        contact

  Unbalanced external clock      5
  in

                       THUMBWEEL FUNCTION SELECTION

            Function                   S1            S2           S3

      Reset loopback tests         Position 0      Pushed     Not pushed

   Begin remote line loopback      Position 1      Pushed     Not pushed
              test

          Unidentified             Position 2      Pushed     Not pushed

  Reset to factory defaults and    Position 3    Pushed for    Pushed for
        switch settings                            2 sec.       2 sec.

          Unidentified             Position 3      Pushed     Not pushed

  Begin near-end line loopback     Position 4      Pushed     Not pushed
              test

     Begin near-end payload        Position 5      Pushed     Not pushed
         loopback test

  Begin near-end local loopback    Position 6      Pushed     Not pushed
              test

          Unidentified             Position 7      Pushed     Not pushed

      Send QRST test code          Position 8      Pushed     Not pushed

     Send 3 in 24 test code        Position 9      Pushed     Not pushed

            Note:S2 and S3 must always be held for at least one-half of
            one second for the above functions to take effect.

                             DIAGNOSTIC LED(S)

     LED         Color          Status                Condition

    TXD1         Yellow           On           Data port 1 is receiving
                                                  data from network

    TXD1         Yellow          Off         Data port 1 is not receiving
                                                  data from network

    RXD1         Yellow           On          Data port 1 is transmitting
                                                   data to network

    RXD1         Yellow          Off              Data port 1 is not
                                             transmitting data to network

    CTS1         Yellow           On           Data port 1 CTS is high

    CTS1         Yellow          Off            Data port 1 CTS is low

    RTS1         Yellow           On           Data port 1 RTS is high

    RTS1         Yellow          Off            Data port 1 RTS is low

    TXD2         Yellow           On           Data port 2 is receiving
                                                  data from network

    TXD2         Yellow          Off         Data port 2 is not receiving
                                                  data from network

    RXD2         Yellow           On          Data port 2 is transmitting
                                                   data to network

    RXD2         Yellow          Off              Data port 2 is not
                                             transmitting data to network

    CTS2         Yellow           On           Data port 2 CTS is high

    CTS2         Yellow          Off            Data port 2 CTS is low

    RTS2         Yellow           On           Data port 2 RTS is high

    RTS2         Yellow          Off            Data port 2 RTS is low

    DATA1        Green            On          Valid data signal detected
                                               on T1 network interface

    DATA1        Green         Blinking       Network Set, Reset, or Test
                                              code detected on T1 network
                                                      interface

    DATA1        Green           Off          No valid signal detected on
                                                 T1 network interface

     CV1          Red             On             Code Violation error
                                                detected on T1 network
                                                      interface

     CV1          Red            Off           Code Violation error not
                                                detected on T1 network
                                                      interface

                         DIAGNOSTIC LED(S) (CONT)

     LED         Color         Status                Condition

    LOS1          Red            On           Loss Of Signal condition
                                               detected on T1 network
                                                     interface

    LOS1          Red           Off         Loss Of Signal condition not
                                               detected on T1 network
                                                     interface

    OOF1          Red            On            Signal is out of frame
                                            synchronization on T1 network
                                                     interface

    OOF1          Red           Off          Signal is not out of frame
                                            synchronization on T1 network
                                                     interface

    AIS1          Red            On            Alarm Indication Signal
                                              condition detected on T1
                                                 network interface

    AIS1          Red         Blinking      Alarm Indication Signal being
                                              transmitted to T1 network
                                                     interface

    AIS1          Red           Off            Alarm Indication Signal
                                            condition not detected on T1
                                                 network interface

    YEL1        Yellow           On         Remote Yellow Alarm condition
                                               detected on T1 network
                                                     interface

    YEL1        Yellow        Blinking      Local Yellow Alarm condition
                                               detected on T1 network
                                                     interface

    YEL1        Yellow          Off          Yellow Alarm condition not
                                               detected on T1 network
                                                     interface

    DATA2        Green           On         Valid data signal detected on
                                               T1 terminal interface

    DATA2        Green        Blinking       Network Set, Reset, or Test
                                            code detected on T1 terminal
                                                     interface

    DATA2        Green          Off        No valid signal detected on T1
                                                 terminal interface

     CV2          Red            On         Code Violation error detected
                                              on T1 terminal interface

     CV2          Red           Off           Code Violation error not
                                               detected on T1 terminal
                                                     interface

    LOS2          Red            On           Loss Of Signal condition
                                               detected on T1 terminal
                                                     interface

    LOS2          Red           Off         Loss Of Signal condition not
                                               detected on T1 terminal
                                                     interface

    OOF2          Red            On            Signal is out of frame
                                           synchronization on T1 terminal
                                                     interface

    OOF2          Red           Off          Signal is not out of frame
                                           synchronization on T1 terminal
                                                     interface

    AIS2          Red            On            Alarm Indication Signal
                                              condition detected on T1
                                                 terminal interface

    AIS2          Red         Blinking      Alarm Indication Signal being
                                             transmitted to T1 terminal
                                                     interface

    AIS2          Red           Off            Alarm Indication Signal
                                            condition not detected on T1
                                                 terminal interface

                         DIAGNOSTIC LED(S) (CONT)

    LED          Color         Status                 Condition

    YEL2        Yellow           On         Remote Yellow Alarm condition
                                               detected on T1 terminal
                                                      interface

    YEL2        Yellow        Blinking       Local Yellow Alarm condition
                                               detected on T1 terminal
                                                      interface

    YEL2        Yellow           Off          Yellow Alarm condition not
                                               detected on T1 terminal
                                                      interface

    PWR          Green           On                  Power is on

    PWR           Red            On               Self-test failed

    PWR           Red         Blinking      Serious problem has occurred

    PWR           N/A            Off                Power is off

    LOOP        Yellow           On             Local loopback test in
                                                      progress

    LOOP        Yellow        Blinking         Remote loopback test in
                                                      progress

    LOOP        Yellow           Off        Loopback test not in progress

    SEND        Yellow           On             Test code being sent

    SEND        Yellow        Blinking       Remote loopback test may be
                                              in progress but cannot be
                                                      verified

    SEND        Yellow           Off          Test code not being sent

    ALM           Red            On          Alarm condition detected and
                                             awaiting user intervention

    ALM          Green           On           Alarm condition detected;
                                            user intervention in progress

    ALM           Red         Blinking      Serious problem has occurred

    ALM           N/A            Off        Alarm condition not detected

