TM 1-6625-724-13&P 0001 00 0001 00-3 ACRONYM LIST CTS Clear To Send D/A digital-to-analog DAC digital-to-analog converter DAU Data Acquisition Unit dB decibel Deg degrees DIAG Diagnostic DIAGS diagnostics DOS Disk Operating System DPL Diagnostic Programming Language DRAM Dynamic Random-Access-Memory DSIMM dynamic single in-line memory module DSP Digital Signal Processing DSR Data Set Ready DTR Data Transfer Ready DVM digital voltmeter ECU Engine Control Unit EIR Equipment Improvement Recommendation EMI electro-magnetic interference EPROM Electronic Programmable Read-Only-Memory EPT Enhanced Passive Tracker ESD Electrostatic Discharge EUTD Enhanced Universal Tracking Device EXT external F Fahrenheit FAB Forward Avionics Bay FFT Fast Fourier Transform FIFO First In-First Out ft. feet Gbytes Giga bytes Hz Hertz I/O Input/Output IBM International Business Machines ID Identify IEFAB Improved Extended Forward Avionics Bay IETM Integrated Electronic Technical Manual IPS Inches Per Second ips inches per second IR Infrared kHz kilo Hertz lb. Pound LED Light Emitting Diode LF Line Feed LMT Limits LMP Lamp MB Megabyte MHz Megahertz mm millimeter