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- Description
- Specifications
The NM-1CE1T1-PRI is a Cisco 1-port channelized E1/T1/ISDN-PRI network module. Cisco IOS Software sets the port for T1 or E1 operation, and E1 can be balanced (120 ohm) or unbalanced (75 ohm) on the same module. An integrated CSU/DSU sits on the port, which uses an RJ-48C connector.
T1 runs at 1.544 Mbps with AMI or B8ZS coding and SF or ESF framing, with line build-out of 0, -7.5 or -15 dB. E1 runs at 2.048 Mbps with HDB3 coding and CRC4 framing, in framed (G.704) or unframed (G.703) mode. The module carries PRI for data, T1-CAS and E1-CAS R2 signaling, and its bantam (tty) jacks allow line monitoring.
Supported routers are the Cisco 2610-51XM, 2800, 2691, 3660, 3700 and 3800 Series. Per chassis, the maximum number of NM-1CE1T1-PRI modules is 1 in a 2610-51XM, 2800 or 2691, 2 in a 3725 or 3825, 4 in a 3745 or 3845 and 6 in a 3660. Online insertion and removal works on the 3660, 3745 and 3845.
The 2-port model is the NM-2CE1T1-PRI. The module interoperates with NM-xDM digital modem network modules, and the E1 cable adaptors are CAB-E1-RJ45BNC (unbalanced) and CAB-E1-RJ45TWIN (balanced). More cards are in Cisco interface cards.
| Part number | NM-1CE1T1-PRI |
| Type | Channelized E1/T1/ISDN-PRI network module |
| Ports | 1 |
| Port connector | RJ-48C |
| Operation | T1 or E1, set in Cisco IOS Software |
| E1 termination | Balanced (120 ohm) or unbalanced (75 ohm) |
| Line bit rate | E1 2.048 Mbps, T1 1.544 Mbps |
| Line coding | E1 HDB3, T1 AMI and B8ZS |
| Framing | E1 CRC4, T1 SF and ESF |
| CSU/DSU | Integrated, per port |
| Signaling | PRI, T1-CAS, E1-CAS R2 |
| Two-port model | NM-2CE1T1-PRI |
| Compatible with | Cisco 2610-51XM, 2800, 2691, 3660, 3700 and 3800 Series routers |