Section 1, System Description ATLAS 550 System Manual
16 © 2002 ADTRAN, Inc. 61200305L1-1F
1. SYSTEM OVERVIEW
The ATLAS 550 is a modular, highly scalable platform that provides robust solutions for the wide-area
communication needs of small-to-medium corporations and network access providers. The ATLAS 550 is
an Integrated Access System with extensive support of dedicated bandwidth management and access
switching. It contains a high-performance CPU and powerful communications drivers which support
applications such as frame relay, dial-backup, and PPP (point-to-point protocol).
The ATLAS 550 architecture also includes a packet and circuit switching bussing scheme. The result is a
system capable of supporting bandwidth requirements of up to 9 T1 circuits or 5 Primary Rate ISDN (PRI)
circuits. Designed for standalone, rackmount, or wallmount installations, the ATLAS 550 base unit
provides two hot-swappable network interfaces and four expansion slots that accommodate hot-swappable
option modules for a variety of applications. A 10/100BaseT Ethernet connection for IP routing and
network management is standard with the ATLAS 550 base unit.
With the ATLAS 550, you can consolidate your voice, data, and video applications into a single platform
while optimizing wide area bandwidth and reducing equipment costs. The ATLAS 550 architecture and the
four expansion slots allow for a variety of modules, making it one of the most versatile access systems on
the market.
2. FEATURES AND BENEFITS
The following is a brief list of ATLAS 550 features and benefits:
Configuration and Management
• VT100 Emulation
• SNMP, per MIB II (RFC1213), DS1/E1 MIB (RFC1406), Frame Relay MIB (RFC1315), and
ADTRAN private MIBs
•Telnet
• Dial up remote management via optional Modem Management Network Module (P/N 1200341L1)
• Six levels of password protection and privileges
Software Upgradeable
• Flash memory
• TFTP download
• XMODEM via control port
Signaling Support
• ISDN D Channel
• Robbed bit, E&M, Ground Start, Loop Start
• Convert between Robbed Bit Signaling and ISDN D Channel
• Direct Inward Dialing
