Chapter 1. Introduction1-8 MX2800 STS-1 User Manual 61200659L1-1AVAILABLE OPTIONSThe following optional equipment is available for use with theMX2800 STS-1. Contact your local distributor or the ADTRANsales department for more information (see front section of thismanual for phone number).Breakout Panel (P/N 1200291L1)The optional breakout panel connects to the MX2800 STS-1 andprovides 28 RJ connectors for the individual T1s/E1s. Shipmentincludes two six-foot, 64-pin to 64-pin Amp cables which allowdirect cabling to the MX2800 STS-1 (see Connecting the BreakoutPanel on page 2-6 for more information).Battery Backup (P/N 4175043L2)The battery backup system provides power backup in the event ofpower loss. This system includes the battery, an AC batterycharger, and an alarm cable.