
CTC UNION TECHNOLOGIES CO., LTD

G.703 FE1 FRACTIONAL E1

G.703 FRACTIONAL T1

Card Type           Fractional Access Unit
NIC Type            E1/T1
Chip Set            Unidentified
I/O Options         25-pin DTE/DCE port, BNC connectors (2),

                    RJ-45 connector
Wiring Type         RJ-45 120ohm shielded twisted pair

                    BNC 75ohm coaxial
Maximum Data Rate   2048Kbps
Data Bus            External

[Image]

                                CONNECTIONS

          Function             Label           Function             Label

  RJ-45 connector              CN1     BNC connector - transmit      TX

  25-pin serial connector      CN2     Power switch                 SW8

  BNC connector - receive       RX

                        USER CONFIGURABLE SETTINGS

                   Setting                      Label         Position

     Unframe mode enabled                      SW2/1           Off

      Frame mode enabled                        SW2/1            On

     Normal clock polarity - receive           SW6/3           Off

      Inverted clock polarity - receive         SW6/3            On

     Normal clock polarity - transmit          SW6/4           Off

      Inverted clock polarity - transmit        SW6/4            On

     CRC4 disabled                             SW6/5           Off

      CRC4 enabled                              SW6/5            On

     CAS/PCM30 mode                            SW6/6           Off

      CAS/PCM31 mode                            SW6/6            On

     Unused timeslot - Mark                    SW6/7           Off

      Unused timeslot - Pass-through            SW6/7            On

     DCE data port enabled                     SW6/8           Off

      DTE data port enabled                     SW6/8            On

  Note: When cascading, SW6/7 must be set to on.

                              LINE IMPEDANCE

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

     75ohm unbalanced      Off       Off       On        On        On
      network interface

      120ohm balanced       On        On        Off       Off       Off
      network interface

                            TIMESLOT SELECTION

  Setting     SW2/2    SW2/3    SW2/4    SW2/5   SW2/6    SW2/7    SW2/8

  Timeslot      On      Off      Off      Off     Off      Off      Off
  1 active

  Timeslot     Off      On       Off      Off     Off      Off      Off
  2 active

  Timeslot     Off      Off      On       Off     Off      Off      Off
  3 active

  Timeslot     Off      Off      Off      On      Off      Off      Off
  4 active

  Timeslot     Off      Off      Off      Off      On      Off      Off
  5 active

  Timeslot     Off      Off      Off      Off     Off       On      Off
  6 active

  Timeslot     Off      Off      Off      Off     Off      Off       On
  7 active

  Note: Off position sets timeslots to idle. Cascaded units must not be
  assigned identical or overlapping timeslots

                        TIMESLOT SELECTION (CONT.)

  Setting    SW3/1   SW3/2  SW3/3   SW3/4   SW3/5   SW3/6   SW3/7   SW3/8

  Timeslot    On     Off     Off     Off     Off     Off    Off      Off
  8 active

  Timeslot   Off      On     Off     Off     Off     Off    Off      Off
  9 active

  Timeslot   Off     Off     On      Off     Off     Off    Off      Off
  10
  active

  Timeslot   Off     Off     Off     On      Off     Off    Off      Off
  11
  active

  Timeslot   Off     Off     Off     Off     On      Off    Off      Off
  12
  active

  Timeslot   Off     Off     Off     Off     Off     On     Off      Off
  13
  active

  Timeslot   Off     Off     Off     Off     Off     Off     On      Off
  14
  active

  Timeslot   Off     Off     Off     Off     Off     Off    Off      On
  15
  active

  Note: Off position sets timeslots to idle. Cascaded units must not be
  assigned identical or overlapping timeslots

                        TIMESLOT SELECTION (CONT.)

  Setting    SW4/1   SW4/2  SW4/3   SW4/4   SW4/5   SW4/6   SW4/7   SW4/8

  Timeslot    On     Off     Off     Off     Off     Off    Off      Off
  16
  active

  Timeslot   Off      On     Off     Off     Off     Off    Off      Off
  17
  active

  Timeslot   Off     Off     On      Off     Off     Off    Off      Off
  18
  active

  Timeslot   Off     Off     Off     On      Off     Off    Off      Off
  19
  active

  Timeslot   Off     Off     Off     Off     On      Off    Off      Off
  20
  active

  Timeslot   Off     Off     Off     Off     Off     On     Off      Off
  21
  active

  Timeslot   Off     Off     Off     Off     Off     Off     On      Off
  22
  active

  Timeslot   Off     Off     Off     Off     Off     Off    Off      On
  23
  active

  Note: Off position sets timeslots to idle. Cascaded units must not be
  assigned identical or overlapping timeslots

                        TIMESLOT SELECTION (CONT.)

  Setting    SW5/1   SW5/2  SW5/3   SW5/4   SW5/5   SW5/6   SW5/7   SW5/8

  Timeslot    On     Off     Off     Off     Off     Off    Off      Off
  24
  active

  Timeslot   Off      On     Off     Off     Off     Off    Off      Off
  25
  active

  Timeslot   Off     Off     On      Off     Off     Off    Off      Off
  26
  active

  Timeslot   Off     Off     Off     On      Off     Off    Off      Off
  27
  active

  Timeslot   Off     Off     Off     Off     On      Off    Off      Off
  28
  active

  Timeslot   Off     Off     Off     Off     Off     On     Off      Off
  29
  active

  Timeslot   Off     Off     Off     Off     Off     Off     On      Off
  30
  active

  Timeslot   Off     Off     Off     Off     Off     Off    Off      On
  31
  active

  Note: Off position sets timeslots to idle. Cascaded units must not be
  assigned identical or overlapping timeslots

                               TIMING SOURCE

                 Setting                       SW6/1           SW6/2

     Receive - recovery/transmit - data        Off             Off
      port

      Receive/transmit - data port              Off              On

      Receive/transmit - recovery                On             Off

      Receive/transmit - internal                On              On
      oscillator

  Note: Default setting cannot be used if SW6/7 is set to on.

                             TEST MODE

             Setting                   Label          Position

  C703 loopback test enabled            SW7               1

  Normal mode enabled                   SW7               2

  Dataport loopback test enabled        SW7               3

                             DIAGNOSTIC LED(S)

   LED      Color        Status                   Condition

   DTE      Green          On           DTE mode enabled; power is on

   DTE          Green     Off          DTE mode disabled; power is off

   DCE          Green      On           DCE mode enabled; power is on

   DCE      Green         Off          DCE mode disabled; power is off

   TD           Yellow     On            Ones are being transmitted to
                                                   network

   TD           Yellow    Off           Zeros are being transmitted to
                                                   network

   TD       Yellow      Blinking     Ones and zeros are being transmitted
                                                  to network

   RD           Yellow     On        Ones are being received from network

   RD           Yellow    Off            Zeros are being received from
                                                   network

   RD       Yellow      Blinking       Ones and zeros are being received
                                                 from network

   TST          Red        On          Access unit is executing a test

   TST          Red       Off        Access unit is not executing a test

   ALM          Red        On        Alarm condition detected on network

   ALM          Red       Off           Alarm condition not detected on
                                                   network

   TXL          Red        On            Transmit clock loss detected

   TXL       Red          Off          Transmit clock loss not detected

   RXL          Red        On            Receive signal loss detected

   RXL       Red          Off          Receive signal loss not detected

