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# ALLIED TELESYN, INC.
AT-270T
Device Type Transceiver
NIC Type Ethernet
Maximum Onboard Memory Unidentified
Boot ROM Not available
Network Transfer Rate 10Mbps
Topology Star
Wiring Type Unshielded twisted pair
Data Bus External
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|----------------------+-------+---------------------+-------|
| AUI transceiver via | CN1 | AUI transceiver via | CN2 |
| DB-15 | | DB-15 | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|----------------------------------------+-------+-----------|
| ยป | SQE test function disabled | SW1 | Off |
|---+------------------------------------+-------+-----------|
| | SQE test function enabled | SW1 | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED | Color | Status | Condition |
|-----+--------------+--------+------------------------------|
| PWR | Unidentified | On | One AUI has supplied power |
| | | | to the transceiver |
|-----+--------------+--------+------------------------------|
| PWR | Unidentified | Off | Power is off |
|-----+--------------+--------+------------------------------|
| LNK | Unidentified | On | Valid receive link is |
| | | | established |
|-----+--------------+--------+------------------------------|
| LNK | Unidentified | Off | Receive link connection is |
| | | | broken |
|-----+--------------+--------+------------------------------|
| XMT | Unidentified | On | Data is being transmitted |
|-----+--------------+--------+------------------------------|
| XMT | Unidentified | Off | Data is not being |
| | | | transmitted |
|-----+--------------+--------+------------------------------|
| RCV | Unidentified | On | Data is being received |
|-----+--------------+--------+------------------------------|
| RCV | Unidentified | Off | Data is not being received |
|-----+--------------+--------+------------------------------|
| COL | Unidentified | On | Collision detected on |
| | | | network |
|-----+--------------+--------+------------------------------|
| COL | Unidentified | Off | No collision detected on |
| | | | network |
|-----+--------------+--------+------------------------------|
| SQE | Unidentified | On | Signal Quality Error test |
| | | | function is enabled |
|-----+--------------+--------+------------------------------|
| SQE | Unidentified | Off | Signal Quality Error test |
| | | | function is disabled |
|-----+--------------+--------+------------------------------|
| POL | Unidentified | On | Automatic polarity reversal |
| | | | has not occurred |
|-----+--------------+--------+------------------------------|
| POL | Unidentified | Off | Automatic polarity reversal |
| | | | has occurred |
+------------------------------------------------------------+