Chapter 1. Introduction1-2 MX2800 STS-1 User Manual 61200659L1-1The major features of the MX2800 STS-1 are as follows:• Built-in 1:1 redundancy• Hot-swappable controller cards• Independent, dual-load sharing, redundant power supplies• Embedded SNMP and Telnet management through 10BaseTethernet or SLIP/PPP dialup• Detailed performance monitoring for local and remote units• Simplified configuration through the VT-100 terminal menustructure• Integrated V.34 modem for dial-up and dial-out access (see thefollowing note)• Capable of backhauling multiple service types (T1/E1)• AC or DC power• VT Hairpining• VT cross-connect to any DS1• NEBS Level 3 compliant• Standard 10-year warrantyController Card 1:1 RedundancyThe MX2800 STS-1 supports two hot-swappable controller cardswhich provide 1:1 redundancy for the T1 and STS-1 signals as wellas the STS-1 connections. With two cards installed, the MX2800STS-1 can recover from circuit or network failure, depending onthe configuration. See Chapter 7, Circuit and Network Redundancyfor more information.Information regarding the built-in modem applies to the followinglist of part numbers: 4200659L1, L2, L3, and L4.