ALPHA TELECOM, INC.

UT620F

Card Type                  ISDN NT1
Chip Set                   Unidentified
I/O Options                Power, Terminal S/T interface via RJ-45
                           (2),Network U interface via RJ-45
T1 Transfer Rate           1.44Mbps
Frame Type                 AMI, 2B1Q
Data Bus                   External

[Image]

                                CONNECTIONS

          Function             Label            Function           Label

  ISDN U interface (RJ-45)      CN1     ISDN S/T interface          CN3
                                        (RJ-45)

  ISDN S/T interface            CN2     Power                       CN4
  (RJ-45)

                        USER CONFIGURABLE SETTINGS

                  Function                     Label         Position

  »   Extended passive bus                      SW3            Off

      Short passive bus                         SW3             On

      Local power supply set to AD62010         SW4             On

      Local power supply set to SP62029         SW4            Off

                         S/T TERMINATION SELECTION

          Setting             SW1/1      SW1/2        JP3         JP4

  »     100Ohm resistance      On         On         Open         Open
            enabled

        50Ohm resistance       On         On        Closed       Closed
            enabled

       Resistance disabled     Off        Off         N/A         N/A

                             DIAGNOSTIC LED(S)

    LED        Color         Status                 Condition

    PWR        Green           On                  Power is on

    PWR        Green          Off                  Power is off

   S/T&U        Red            On              U interface inactive

   S/T&U        Red         Blinking      U interface connection is being
                             (fast)                established

   S/T&U        Red         Blinking          U interface active; S/T
                             (slow)             interface inactive

   S/T&U        Red           Off            U & S/T interface active

   ULBK       Yellow           On         Central office is conducting a
                                             loopback test on device

   ULBK       Yellow          Off        Central office is not conducting
                                            a loopback test on device