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ATLAS includes an advanced access architecture for switching dial-up calls to specific ports or DS0s. The Quad Basic Rate ISDN (BRI) Module contains four ISDN U-Interfaces and combines with other ATLAS 550 components to implement an ISDN access switch. The Quad BRI Module can connect to the ISDN network (NT mode), or it can emulate the ISDN network to other ISDN access devices (LT mode) that support the U-Interface, such as terminal adapters and network termination units.
As a component in an ATLAS 550 access switching application, the Quad BRI Module can consolidate multiple Basic Rate ISDN (BRI) connections onto T1/PRI access lines. The module also supports BRI-to-BRI, BRIto-PRI, and PRI-to-PRI switching. In addition, the ATLAS 550 can convert between ISDN D channel (PRI or BRI) and T1 robbed bit signaling, allowing non-ISDN equipment to access a more efficient PRI or BRI facility. Moreover, the module's call filtering feature allows you to program on a per-user basis, the call types that will be answered and originated.
The Quad BRI module can be configured through a variety of mechanisms, including Telnet or VT100 emulation. SNMP management is supported for alarm and event reporting.
The Quad BRI Module includes an extensive array of diagnostic tools to assist in identifying and correcting network problems including a built-in self-test utility, local and remote loopback testing for B1, B2, and 2B+D, and performance monitoring to ensure the quality of the ISDN line.
32°F (0°C) to 113°F (45°C) Operating / -4°F (-20°C) to 158°F (70°C) Storage
Manufacturer Part Number
Manufacturer Website Address
Atlas 550 Expansion Module
Data Transfer Rate
160 Kbps Full-duplex
3.41 Mile Twisted Pair
Four basic rate ISDN U-Interfaces LT mode and NT mode support ANSI T1.601 compliant Compliant with Lucent 5ESS, Nortel DMS100, and National ISDN Near-end and far-end block error monitoring Flash upgradable Occupies a single user slot in the ATLAS 550 chassis Hot swappable Termination Modes: LT (Network Emulation) NT (DCE) Diagnostics Self-test B1, B2, & 2B+D Local and Remote Loopbacks Performance Monitoring: Near-End Block Errors (NEBES), & Far-End Block Errors (FEBES) Switch Compatibility: Lucent 5ESS Nortel DMS-100 National ISDN BRI Line Rate 2B+D, 160 Kbps full duplex
Four RJ-45 to RJ-11 cables (7 ft) and user manual Quick Start Guide
ATLAS 550 Switch Compatibility: Lucent 5ESS Nortel DMS-100 National ISDN
Certifications & Standards
FCC Part 15, Class A FCC Part 68 UL Canadian UL (CUL) Industry Canada CS-03
Telnet / SNMP
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