Cisco NM-4B-U | 4-Ports 128Kbps WAN ISDN Terminal Adapter

1. Interface Type: ISDN Terminal Adapter
2. Ports Qty: 4
3. Data Transfer Rate: 128 Kbps
4. Line Rate: T1/E1
5. Connectivity Technology: Wired
6. Digital Signaling Protocol: ISDN
7. Protocols & Specifications: ITU Q.921, ITU Q.931
8. Max Transfer Distance: 6561 ft
9. Compatibility: PC
10. Dimensions: 7.1 x 7.2 x 1.6 inches
11. Weight: 0.6 lbs
12. Operating Temperature: 32°F to 104°F

Notes:
1. The NM-4B-U is compatible with a variety of Cisco routers and switches.
2. This terminal adapter supports both BRI and PRI ISDN connections.
3. It is a cost-effective solution for small to medium-sized businesses looking to expand their WAN connectivity.