Used Cisco 2650XM and 2651XM Router Feature Cards - WAN - Serial Network Module

About the Cisco 2600 Series: "Modular and cost-effective solution for duty as access router, voice/data gateway, or dial-access server. Connects one or two Ethernet or Token Ring LANs to ISDN, channelized T1, Ethernet, analog modems, or ATM links. Also supports voice/fax and Frame Relay" (Cisco - A Beginner's Guide Third Edition by Velte & Velte).

Part # NM-1T3/E3

Product Description: 1-Port T3/E3 network module.  The Cisco T3/E3 network module provides direct connectivity to a T3 line for full-duplex communications at the T3 rate of 44.736 MHz and full-duplex E3 communications at 34.368 MHz. Each T3 or E3 port consists of a pair of 75-ohm BNC coaxial connectors (Type RG-59), one for transmit data and one for receive data, along with six LED indicators for line status. The Cisco 2650XM and 51XM, Cisco 2691, Cisco 3660, and the Cisco 3725 support a single T3/E3 network module. The Cisco 3745 supports up to two single-port Cisco T3/E3 network modules. Because the Cisco T3/E3 network module is supported in Cisco IOS feature sets, there are no additional memory requirements for any supported platforms.

Directory of Cisco 2800 WAN Serial Network Modules

Directory of Cisco 3600 WAN Serial Network Modules

Directory of Cisco 3700 WAN Serial Network Modules

Directory of Cisco 3800 WAN Serial Network Modules