Cisco NM-2CE1B | 2-Ports Channelized E1/ISDN-PRI Balanced Network Module

Here are 12 technical specifications for the Cisco Network Module (NM-2CE1B):

1. Interface Type: Expansion module
2. Connectivity Technology: Wired
3. Data Link Protocol: HDLC, Frame Relay, PPP
4. Line Rate: T1/E1
5. Max Transfer Distance: 6561 ft
6. Expansion Slots: 2 x E1/T1
7. Compatible Slots: 1 x expansion slot
8. Dimensions: 7.1 x 7.2 x 1.6 inches
9. Weight: 0.5 lbs
10. Operating Temperature: 32°F to 104°F
11. Humidity Range Operating: 10% to 90%
12. Designed For: Cisco 1751, 1751-V, 1760, 1760-V3PN, 2621, 2621XM, 2651XM, 2691, 3660, 3662, 3725, 3745, 3825, 3845

Helpful notes:
1. The NM-2CE1B module provides two additional T1/E1 ports for Cisco routers.
2. This module supports multiple protocols, including HDLC, Frame Relay, and PPP.
3. The NM-2CE1B is compatible with a wide range of Cisco routers, making it a versatile expansion option.