| Interface Type | PCI Express x1 |
| PCI Revision | PCIe 1.0a |
| Connectivity Technology | Wired |
| Processor | Freescale DSP56303 100 MHz |
| Max Transfer Rate | 1.544 Mbps |
| ISDN Interface | ISDN PRI T1 |
| Data Compression Protocol | G.726 |
| Cellular Protocol | GSM |
| Voice Communication Support | VoIP |
| Digital Ports Qty | 1 |
| Multiplexed Channels Qty | 24 |
| Line Rate | T-1 |
| Line Coding Format | AMI, B8ZS |
| Framing Format | ANSI T1.403, D4, ESF, SF |
| Expansion Slot(s) | 1 (total) / 1 (free) x CT Bus |
| Interfaces | 1 x modem - ISDN PRI T1 - RJ-48C 1 x network - DSX-1 |
| Compatible Slots | 1 x PCI Express x1 |
| Compliant Standards | UL, CISPR 24, EN 60950, EN55022, VCCI Class A ITE, EN55024, CSA 22.2 No. 950, CISPR 22, ICES-003 Class A, ULC, RoHS, UL 60950-1, IEC 60950-1, FCC Part 15 A |
| Min Operating Temperature | 32 °F |
| Max Operating Temperature | 122 °F |
| Humidity Range Operating | 8 - 80% |