ADTRAN has applied its industry-leading carrier class expertise to the MX2800 STS-1 Access Multiplexer, creating a product that meets the most stringent carrier class requirements. The MX2800 STS-1 offers bandwidth consolidation at a low price and in the smallest footprint available in the industry. Measuring only one rack unit high in 19-inch or 23-inch rackmount configurations, this compact device gives Network Service Providers and enterprise users a powerful tool for consolidating 28 T1 signals onto a SONET STS-1 tributary.The MX2800 houses two hot-swappable controller cards capable of multiplexing T1s or E1s onto an STS-1 tributary. The two controller cards also provide built-in 1:1 redundancy for the DS1 and STS-1 signals as well as redundant STS-1 connections. Advance diagnostics include CSU loopbacks, NIU loopbacks and built in BERT (Bit Error Rate Testing). A fully connectorized backplane means no wire wrapping and quick, easy installation. Accessories available for the MX2800 STS-1 include a DSX-1 patch panel that breaks out the 28 DSX-1s into 28 individual RJ48 interfaces and a battery backup system that provides eight hours of battery backup. By utilizing the optional fan module, up to 40 MX2800s can be mounted into a standard seven-foot rack. As with all ADTRAN products, the MX2800 STS-1 offers comprehensive management options. It features a VT100 terminal interface for local configuration. To support SNMP, Telnet and TL1 alarming management, the MX2800 STS-1 has an integrated 10BaseT Ethernet port. Carriers looking to maximize their copper investment and consolidate their services in the most efficient manner will find the MX2800 STS-1 will pay off quickly. Class 5 switches that have STS-1 voice interfaces can easily be converted to DSX-1 interfaces using the MX2800. This gives service providers a cost-effective way to better utilize switch resources while offering T1 voice services to customers.This product is configured with one chassis (1200290L1), one controller card (1204659L2), one fan faceplate (1200466L1), and one AC power supply (1202289L1).