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# 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
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|-----------------------+-------+--------------------+-------|
| ISDN U interface | CN1 | ISDN S/T interface | CN3 |
| (RJ-45) | | (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 |
| | | (fast) | being 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 |
+------------------------------------------------------------+