Product Description: Cisco 2600, 2600XM, 2800, 3600, 3700, 3800
Series - 4-Port ISDN BRI Network Module with Integrated Network
Termination 1 (NT1) (U Interface).
The 4-port ISDN BRI Network Module provides various port
densities for ISDN BRI connectivity. The optional, integrated
NT1 allows consolidated customer premises equipment (CPE) to
provide multifunction dial Access Server, router, and other
capabilities within power branch office environments.
Four
versions of ISDN BRI Network Modules are available. Each 4- and
8-port Module has the option of an S/T interface or an onboard
NT1 for each port. Local static RAM (SRAM) is used for buffer
descriptors and input queues. The 4-port Module is not field
upgradeable to the 8-port Module. With all eight BRI ports
running continuous data (144 kbps each) and 50-byte packets, the
maximum performance possible is 5760 pps and an aggregate
full-duplex data rate of 2.3 Mbps.
More 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).
More About the Cisco 3700 Series:
"Modular routers, targeted at branch offices. Supports Frame
Relay, ISDN, LL, X.25, ATM, fractional T1/E1, xDSL, T3/E3, HSSI
WAN protocols" (Cisco A Beginner's Guide Third Edition by Velte & Velte).
Power supplies, accessories, rack mount kits, and
other supplies are available to add to Cisco NM-4B-U.
When purchasing a used Cisco
NM-4B-U from GGI Networks, expect high-quality used network
equipment. All of our reconditioned, refurbished, pre-owned, and used network accessories are tested and guaranteed.
If you have questions regarding the Cisco NM-4B-U email or call one of our Sales Representatives at: 1-800-908-9665.
