These upgradeable, compact SuperStack II routers or stand-alone ISDN routers offer multiprotocol routing, IP/IPX routing, and Boundary Routing technology, which ensures session control for SNA traffic. Every router includes software and installation documentation, an integrated 10BASE-T transceiver, connectors, and a rack mount kit to eliminate the need for extra cables and components. Support for Transcend network management software provides an easy-to-use graphical interface, and SNMP MIB II compliance supports many standard MIBs.

• SuperStack II NETBuilder 42x series routers support an ISDN Basic Rate Interface (BRI) and, for analog links, a DTE interface

• Router software supports industry-standard data compression and dial services to increase effective bandwidth, reduce dial-up line usage fees, handle peak traffic, and block superfluous remote traffic

ISDN—Integrated Services Digital Network—delivers the fast call setup needed by routing protocols. What’s more, ISDN transmission easily surpasses analog modem speeds. SuperStack II NETBuilder 42x and 52x series routers support two ISDN 64 Kbps data channels and one 16 Kbps control channel via the ISDN Basic Rate Interface (BRI). The two data channels can be used independently to connect to different locations, or they can be used as one logical connection to a remote site.

PRODUCT HIGHLIGHTS

Ports - SuperStack II NETBuilder 427, 422 routers:
            1 LAN x 1 BRI WAN x 1 DTE WAN

           SuperStack II NETBuilder 424 router:1 LAN x 3 WANS

           SuperStack II NETBuilder 423 and 421 routers: 1 LAN x 1 BRI WAN

Routing Capabilities and Upgradeability - The SuperStack II NETBuilder 421 Boundary Routing platform works with a central router to support IP, IPX, OSI, AppleTalk, DECnet, and VINES and is upgradeable to a 422 for IP/IPX; the 421, 422, and 423 are upgradeable to a 427 for full routing of IP, IPX, AppleTalk, DECnet, VINES, and OSI

DTE Interface Support - V.35, RS-449, RS-232, X.21

Line Speed - 2.4 Kbps to T1/E1 wide area WAN Protocol Support Point-to-Point Protocol (PPP), Frame Relay, X. 25; SuperStack II NETBuilder 422 and 427 routers also support SMDS

Flash Memory - Optional dual-image flash support with 2 MB flash card (3C8002); each SuperStack II NETBuilder 421 and 422 router requires a 4 MB flash upgrade (3C8004) and 4 MB DRAM upgrade (3C8040)

3C8423C* SNA boundary router

3C8422D IP/IPX router

SuperStack II NETBuilder 421 Router

3C8421C* Boundary router

*Requires a NETBuilder router with Boundary Control Node (BCN) at the central site