Pinout
| Pin | Type | Name | Description |
|---|
| 1 | Power | VCC1 | Positive Supply |
| 2 | Outputs | CI+ | Collision Line Output, differential |
| 3 | CI- |
| 4 | Outputs | DI+ | Receive Line Output, differential |
| 5 | DI- |
| 6 | Input | VCREF | Timing Refrence Set |
| 7 | Input | _SQE TEST | Signal Quality Error Test Enable |
| 8 | Inputs | DO+ | Transmit Input, differential |
| 9 | DO- |
| 10 | Power | VEE | Negative Supply |
| 11 | Input | VTX+ | Tap Node Driver Current Set |
| 12 | I/O | TXT | Tap Node Driver |
| 13 | Input | VTX- | Tap Node Driver Current Set |
| 14 | Input | TAP SHIELD | Low-Noise Media Cable Return |
| 15 | N/C | NC | Not connected |
| 16 | Input | RXT | Media Signal Receiver Input |
| 17 | N/C | NC | Not connected |
| 18 | Power | VCOL | SQE Reference Voltage |
| 19 | Input | COLL OSC | SQE Timing Set |
| 20 | Power | VCC2 | Positive Supply |