| Manufacturer | Adtran |
| Manufacturer Part # | 1200231L1 |
| Cost Central Item # | 10131550 |
| Product Description | ADTRAN OCU DP Dual - Modem (digital) - plug-on module - expansion slot - 64 Kbps - 2 digital port(s) |
| Device Type | Modem (digital) - expansion slot |
| Enclosure Type | Plug-on module |
| Max Transfer Rate | 64 Kbps |
| Digital Signaling Protocol | Switched 56, DDS |
| Digital Ports Qty | 2 |
| Interface Type | Expansion slot |
| Connectivity Technology | Wired |
| Max Transfer Rate | 64 Kbps |
| Transmission Mode | Full-duplex |
| Digital Signaling Protocol | Switched 56, DDS |
| Digital Ports Qty | 2 |
| Interfaces | 2 x modem - Switched 56 - RJ-45 - 4 |
| Compatible Slots | 1 x expansion slot |
| Min Operating Temperature | 32 °F |
| Max Operating Temperature | 122 °F |
| Humidity Range Operating | 0 - 95% |