| Manufacturer | Adtran |
| Manufacturer Part # | 1200236L1 |
| Cost Central Item # | 10131556 |
| Product Description | ADTRAN NT1 ACE3 - ISDN NT1 - external |
| Device Type | ISDN NT1 |
| Enclosure Type | External |
| Approximate Dimensions (WxDxH) | 9 in x 6.4 in x 1.6 in |
| Approximate Weight | 9.5 oz |
| Digital Signaling Protocol | ISDN 5ESS, ISDN DMS-100, ISDN - 1(NI-1) |
| Line Coding Format | 2B1Q |
| Power | AC 120 V |
| Manufacturer Warranty | 5 years warranty |
| Connectivity Technology | Wired |
| Transmission Mode | Full-duplex |
| Digital Signaling Protocol | ISDN 5ESS, ISDN DMS-100, ISDN - 1(NI-1) |
| Line Coding Format | 2B1Q |
| Interfaces | 3 x network - ISDN BRI ST - RJ-45 3 x network - ISDN BRI U - RJ-45 |
| Cables Included | 2 x phone cable - 6 ft |
| Compliant Standards | FCC Class B certified, CSA, UL, cUL |
| Service & Support | 5 years warranty |
| Service & Support Details | Limited warranty - 5 years |
| Min Operating Temperature | 32 °F |
| Max Operating Temperature | 122 °F |
| Humidity Range Operating | 0 - 95% |