Used Cisco 3600 WAN - ISDN Network Modules

About the Cisco 3600 Series: "Modular high-density router for dial-access or router-to-router traffic. Supports ISDN, serial, channelized T1, digital modems, and ATM links. Also supports voice/fax and Frame Relay" (Cisco A Beginner's Guide Third Edition by Velte & Velte).

Part # NM-1C1

Product Description: 1-Port Channelized T1/ISDN-PRI...

Part # NM-1C1-CSU

Product Description: 1-Port Channelized T1/ISDN-PRI...

Part # NM-2T1

Product Description: 2-Port Channelized T1/ISDN-PRI...

Part # NM-2T1-CSU

Product Description: 2-Port Channelized T1/ISDN-PRI...

Part # NM-4B-S/T

Product Description: 4-Port ISDN-BRI Network Module...

Part # NM-4B-U

Product Description: 4-Port ISDN-BRI with NT-1 Network...

Part # NM-8B-S/T

Product Description: 8-Port ISDN-BRI Network Module...

Part # NM-8B-U

Product Description: 8-Port ISDN-BRI with NT-1 Network...