The ADTRAN ATLAS™ 550 is a six-slot modular Integrated Access Device (IAD) designed to improve and lower the costs of voice/data, video, and Internet communications for enterprise businesses and network service providers. With the ATLAS 550, many WAN functions have now been combined into a small, economical, modular platform that will replace a rack of traditional single-function access devices. With the ATLAS 550, traditional multiplexed and packet networks are easier to deploy and manage while providing more bandwidth efficiency out of existing or new communications links. The ATLAS 550 provides a new level of communications flexibility by offering many of the features previously found in larger central office, PBX, or router equipment.

The ATLAS 550 chassis includes a highspeed multi-protocol backplane and six modular expansion slots: two network interface slots and four user interfaces slots. A wide range of hot-swappable, industrystandard modules are also available to effectively converge your telecommunications and your existing network systems, such as routers, PBX, key systems, video conferencing equipment, remote access servers, LANS, faxes, and telephones. The ATLAS 550 typically resides at the customer site and performs the functions found in multi-port multiplexers, channel banks, 1/0 cross connect switches, Frame Relay Access Devices/concentrators/ switches, IP routers, and ISDN switches. It also includes an integral voice switchboard and dial plan for dynamically and intelligently switching voice and data calls based on the telephone number dialed.

The ATLAS 550 supports multiple network technologies including T1/FT1, DSX-1, E1, ISDN, FXS, FXO, V.35 and 10/100Base-T Ethernet and is designed to be used for more cost-effective T1, ISDN or Frame Relay networks. With the modularity of ATLAS 550, users can now support up to 10 FT1s and run traditional switched or multiplexed voice/data traffic, ISDN, or packetized Frame Relay. Users can also run a hybrid mix of network architectures that will make it easier to evolve network systems and applications.

For configuration and troubleshooting, the ATLAS 550 includes LEDs for complete operational status indications, front and rear VT100 craft interfaces for terminal or dial-in access, alarm contacts, and a 10/100Base-T Ethernet LAN connection for SNMP and Telnet.

Features:

Supports TDM or packet networks
Six-slot modular chassis includes one T1/PRI or E1/PRA Network Interface Module (NIM), a second NIM option slot, and four user option slots
Supports FXS, FXO, E&M and DSX-1 for PBX or key systems
Provides integral DSU/ CSUs, multiplexing, 1/0 DACSing, Frame Relay, PPP, IP routing, ISDN switching, and intelligent voice/data call routing
Hot-swappable modules
Management includes: SNMP, Telnet, and VT100
Integral Frame Relay software for access, concentration, and switching
Integral 10/100Base-T Ethernet for Telnet access and IP routing using PPP or Frame Relay Encapsulation
Supports up to 32 analog ports
AC and DC powered versions
Industry-leading five-year North American warranty

Specifications:

Front View

Rear View

ATLAS 550 Specifications
T1/PRI Network Interface module	One built-in T1/DSX-1/PRI port Full or fractional T1 support Connects with network or user equipment under software control Built-in CSU Signaling ISDN D Channel, Robbed-Bit: E&M, FXS, FXO, ground and loop start, DID conversion between T1 and ISDN
Line Rate	1.544 Mbps +/-75 bps
Physical Interface	RJ-48C, modular 8-pin
Framing	D4(SF)/ESF
Line Code	AMI/B8ZS
Input Signal	0 to -36 dB
Line Length	DS-1: 6,000 ft (24 AWG), DSX-1: 655 ft
LAN Features	Built-in 10/100BaseT Ethernet port
IP Router Features	RIP V1, RIP V2, ICMP, ARP, IARP, UDP Relay, OSPF
WAN Features	Frame Relay with RFC 1490 encapsulation PPP
Link Management	ANSI T1.617-D (Annex D) ITU-T Q.933-A (Annex A) LMI (Group of four) Automatic link management protocol discovery
Congestion Control	FECN/BECN, Discard Eligible (DE)
Quality of Service	User configurable DLCI priorities
Switch Compatibility	Lucent 4ESS/5ESS, Nortel DMS-100/250, GTD-5, NI-1 and NI-2
Management Features	SNMP, MIB II (RFC1213), DS-1 MIB (RFC1406) and Enterprise MIBs Loopbacks, QRSS test patterns Alarm contacts
Frame Relay Performance Stats	TX/RX packets, state changes, signaling errors, TX/RX full status, TX/RX link integrity status, FECN/BECN count, DE count Min/Max/Avg delay, dropped packets
Frame Relay Capacity	300 PVCs per system 5,500 packets per second
Operating Temperature	0° to +45°C
Storage Temperature	-20° to +70°C (-4° to 158°F)
Relative Humidity	Up to 95%, non-condensing
Dimensions	17.08" W, 11.67" D, 3.47" H
Weight	18.3 lbs.
Power	AC Power: 90/240 VAC, 50/60Hz DC Power: +24/-48 VDC
Agency Approvals	UL EN60950, CUL CE Mark (AC only) FCC Part 15 (Class A) and FCC Part 68 RoHS compliant (AC only)
Product Includes	ATLAS System CD (Includes ADTRAN Utilities TFTP Server, VT100 Client, Telnet; System Manual; System MIBs; Application Notes; Module Quick Start Guides; ADOBE Acrobat Reader), one 15 ft RJ-48C straightthrough cable, one RJ-48 to DB-25 adapter, one 6 ft straight cable

Deployment:

Acting like a central office switch, the ATLAS 830 and ATLAS 550 can emulate Frame Relay, ISDN and analog circuits.Network engineers, design and test engineers and classroom instructors can easily stage real-world circuits and "what if" scenarios, test new technologies, or configure equipment without purchasing live circuits or incurring toll charges from a carrier.

For Frame Relay WAN emulation, both fully meshed and hub-and-spoke networks can be configured using the RFC 1490 protocol.

As an ISDN switch, the ATLAS can emulate both BRI and PRI dial-up networks. Both BRI and PRI support multiple switch types like the DMS 100, Lucent 5E and National ISDN, with additional support for the Lucent 4E switch with PRI. EuroISDN switch protocol is also supported for E1/PRA, BRI 'S/T' and BRI 'U' interfaces.

Supporting analog circuits, the ATLAS 550 can provide 1–32 analog loop start lines and the ATLAS 830 can provide 1–40 analog loop start lines.