This manual contains instructions for operating the CSA option for the IFR-1900 and is intended to be used in conjunction with the IFR -1900 Operation Manual (1002-3402-200). The CSA option is a Dual Mode / Tri-Band Cellular System Analyzer for the IFR-1900 Communication Service Monitor. The CSA option, referred to as the CSA, provides the ability to monitor, simulate and test Base and Mobile Stations utilizing EIA/TIA-553, ΕΪΑ/ΤΙΑ-627 (formerly IS-54B), IS-136 (Rev. 0) and NT400© protocols. The CSA, contained within the IFR-1900 , consists of additional hardware and software necessary to perform the protocol functions and tests. The CSA is controlled from the IFR-1900 front panel and color display or remotely through the rear panel connectors. CSA Option The CSA provides the following functions and tests: • IS -136 Cellular Data Monitor. • Analog Control Channel Cell Site Simulation. • IS -13 6 Base Station Digital Traffic Bit- Error Rate test. ® Modulation Accuracy and Power Measurements. • Digital Control Channel Cell Site Simulation. • Digital Control Channel Mobile Simulation. • Self Test, Diagnostics, Configuration Info, External I/O Setup and a User File System. The CSA is operated remotely through the rear panel of the IFR-1900 by means of the following: • Dedicated RS-232 Connector. • Additional IEEE-488 address using the IFR-1900 GPIB Connector. • Additional Test MACro (TMAC) commands for IS -136 protocol and control.