
CTC UNION TECHNOLOGIES CO., LTD.

G.703 FE1 (FRACTIONAL E1/E1)

Card Type                  E1 DSU
Chip Set                   Unidentified
I/O Options                E1 network interface via BNC-T connectors (2),

                           25-pin DTE/DCE port, G.703 interface via RJ-45
                           connector
Wiring Type                RG-58A/U cable
E1 Transfer Rate           2.048Mbps
E1 Line Coding             HDB3
Frame type                 G.703
Data Bus                   External

[Image]

                                CONNECTIONS

            Function              Label          Function          Label

  25-pin data port                 CN1     RG-58A/U connector -     CN4
                                           receive (BNC-T)

  RG-58A/U connector -             CN2     Power switch             SW8
  transmit (BNC-T)

  G.703 interface(RJ-45)           CN3

                      USER CONFIGURABLE SETTINGS

                     Setting                       Label    Position

  Framed mode (2048Kbps)                           SW2/1       On

  Unframed mode(64Kbps x n )                       SW2/1       Off

  Time slot 1 enabled                              SW2/2       On

  Time slot 1 disabled                             SW2/2       Off

  Time slot 2 enabled                              SW2/3       On

  Time slot 2 disabled                             SW2/3       Off

  Time slot 3 enabled                              SW2/4       On

  Time slot 3 disabled                             SW2/4       Off

  Time slot 4 enabled                              SW2/5       On

  Time slot 4 disabled                             SW2/5       Off

  Time slot 5 enabled                              SW2/6       On

  Time slot 5 disabled                             SW2/6       Off

  Time slot 6 enabled                              SW2/7       On

  Time slot 6 disabled                             SW2/7       Off

  Time slot 7 enabled                              SW2/8       On

  Time slot 7 disabled                             SW2/8       Off

                  USER CONFIGURABLE SETTINGS (CONT.)

  Time slot 8 enabled                              SW3/1       On

  Time slot 8 disabled                             SW3/1       Off

  Time slot 9 enabled                              SW3/2       On

  Time slot 9 disabled                             SW3/2       Off

  Time slot 10 enabled                             SW3/3       On

  Time slot 10 disabled                            SW3/3       Off

  Time slot 11 enabled                             SW3/4       On

  Time slot 11 disabled                            SW3/4       Off

  Time slot 12 enabled                             SW3/5       On

  Time slot 12 disabled                            SW3/5       Off

  Time slot 13 enabled                             SW3/6       On

  Time slot 13 disabled                            SW3/6       Off

  Time slot 14 enabled                             SW3/7       On

  Time slot 14 disabled                            SW3/7       Off

  Time slot 15 enabled                             SW3/8       On

  Time slot 15 disabled                            SW3/8       Off

  Time slot 16 enabled                             SW4/1       On

  Time slot 16 disabled                            SW4/1       Off

  Time slot 17 enabled                             SW4/2       On

  Time slot 17 disabled                            SW4/2       Off

  Time slot 18 enabled                             SW4/3       On

  Time slot 18 disabled                            SW4/3       Off

  Time slot 19 enabled                             SW4/4       On

  Time slot 19 disabled                            SW4/4       Off

  Time slot 20 enabled                             SW4/5       On

  Time slot 20 disabled                            SW4/5       Off

  Time slot 21 enabled                             SW4/6       On

  Time slot 21 disabled                            SW4/6       Off

  Time slot 22 enabled                             SW4/7       On

  Time slot 22 disabled                            SW4/7       Off

  Time slot 23 enabled                             SW4/8       On

  Time slot 23 disabled                            SW4/8       Off

  Time slot 24 enabled                             SW5/1       On

  Time slot 24 disabled                            SW5/1       Off

  Time slot 25 enabled                             SW5/2       On

  Time slot 25 disabled                            SW5/2       Off

  Time slot 26 enabled                             SW5/3       On

  Time slot 26 disabled                            SW5/3       Off

  Time slot 27 enabled                             SW5/4       On

  Time slot 27 disabled                            SW5/4       Off

  Time slot 28 enabled                             SW5/5       On

  Time slot 28 disabled                            SW5/5       Off

  Time slot 29 enabled                             SW5/6       On

  Time slot 29 disabled                            SW5/6       Off

  Time slot 30 enabled                             SW5/7       On

  Time slot 30 disabled                            SW5/7       Off

  Time slot 31 enabled                             SW5/8       On

  Time slot 31 disabled                            SW5/8       Off

                  USER CONFIGURABLE SETTINGS (CONT.)

  Inverted receive clock polarity enabled          SW6/3       On

  Normal receive clock polarity enabled            SW6/3       Off

  Inverted transmit clock polarity enabled         SW6/4       On

  Normal transmit clock polarity enabled           SW6/4       Off

  CRC4 enabled                                     SW6/5       On

  CRC4 disabled                                    SW6/5       Off

  CAS/PCM31 mode                                   SW6/6       On

  CAS/PCM30 mode                                   SW6/6       Off

  Unused timslot - FLAG(7E)                        SW6/7       On

  Unused timeslot - MARK(FF)                       SW6/7       Off

  Data port in DTE mode                            SW6/8       On

  Data port in DCE mode                            SW6/8       Off

                             E1 LINE IMPEDANCE

            Setting             SW1/1    SW1/2    SW1/3    SW1/4   SW1/5

      75 Ohm operation (CE       Off      Off      Off      Off     Off
           approved)

     120 Ohm operation (CE        On       On      On       On       On
           approved)

    75 Ohm operation (older       On       On      Off      Off     Off
            models)

    120 Ohm operation (older     Off      Off      On       On       On
            models)

                               RX/TX TIMING

     Receive Timing          Transmit Timing        SW6/1        SW6/2

     Recover from E1       Source from data port     Off          Off
      network port

  Source from data port    Source from data port     Off           On

     Recover from E1          Source from E1          On          Off
      network port             network port

      Established by          Established by          On           On
   internal oscillator     internal oscillator

                          LOOPBACK TEST SELECTOR

                  Function                      Label         Position

      Recovery port loopback initiated           SW7              1

  Normal operation. Loopback not activated       SW7              2

        Data port loopback initiated             SW7              3

                             DIAGNOSTIC LED(S)

    LED       Color        Status                  Condition

    DTE       Green          On          DTE mode enabled; power is on

    DTE       Green          Off       Device not in DTE mode or power is
                                                      off

    DCE       Green          On          DCE mode enabled; power is on

    DCE       Green          Off       Device not in DCE mode or power is
                                                      off

    TD        Yellow         On        Data is being transmitted from the
                                                data port (CN1)

    TD        Yellow         Off       Data is not being transmitted from
                                              the data port (CN1)

    RD        Yellow         On        Data is being received at the data
                                                   port (CN1)

    RD        Yellow         Off        Data is not being recieved at the
                                                data port (CN1)

    TST        Red           On          Device is conducting a loopback
                                                      test

    TST        Red           Off           Device is not conducting a
                                                 loopback test

    ALM        Red           On            Alarm condition detected on
                                                    network

    ALM        Red           Off         Alarm condition not detected on
                                                    network

   TXCL        Red           On           Transmit clock loss detected

   TXCL        Red           Off        Transmit clock loss not detected

   RXSL        Red           On           Receive signal loss detected

   RXSL        Red           Off        Receive signal loss not detected

                       MISCELLANEOUS TECHNICAL NOTES

  Timeslot switches are ignored in unframe mode. In framed mode, clock
  rate is determined by the number of timeslots enabled ( n ). In CAS
  mode, SW4/1 must be set to off position or a loopback test will occur.

