| Manufacturer | Part Number | Description |
|---|---|---|
National Semiconductor |
DS75176BT | Multipoint RS-485/RS-422 Transceivers |
| ETCTI Texas Instruments | DS75176BT | DS75176B/DS75176BT Multipoint RS-485/RS-422 Transceivers (Rev. C) |
| ETCTI Texas Instruments | DS75176B | DS75176B/DS75176BT Multipoint RS-485/RS-422 Transceivers (Rev. C) |