This page needs to be proofread.
SM-6T-2-02 APOLLO MISSION SIMULATOR INSTRUCTOR HANDBOOK
APPENDIX A
ABBREVIATIONS
| A/D | Analog-to- digital |
| AGAP | Attitude gyro accelerometer package |
| AGC | Apollo guidance computer |
| AGCU | Attitude gyro coupling unit |
| AM | Amplitude modulation |
| AMS | Apollo mission simulator |
| AMSC | Apollo mission simulator computer |
| A/R | Analog resolver |
| AS | Atmospheric system |
| AS/GPI | Attitude set-gimbal position indicator |
| ATT | Attitude |
| BCD | Binary-coded decimal |
| BCN | Beacon |
| BMAG | Body-mounted attitude gyro |
| CC | Computer control corporation |
| C&D | Communications and data system |
| CCTV | Closed circuit television |
| C/B | Circuit breaker |
| C/C | Computer-to-computer |
| CDU | Coupling display unit |
| C/M | Command module |
| CP | Crew procedures |
| CRT | Cathode ray tube |
| CCS | Console communications system |
| CTE | Central timing equipment |
| C/W | Caution and warning |
| CWS | Caution and warning system |
| DDP-24 | Computer model number |
| DDP-224 | Computer model number |
| D/A | Digital-to-analog |
| DBI | Digital bit input |
| DBIM | Digital bit input (memory) |
| DBO | Digital bit output |
| DCE | Data conversion equipment |
| DCS | Digital command system |
| DEC | Declination |
| DMA | Direct memory access |
| D/R | Digital resolver |
| DSE | Data storage equipment |
| DSIF | Deep space information facility |
| DSKY | Display and keyboard |
| DWI | Digital word input |
| DWO | Digital word output |
| DWOR | Digital word output relay |
| EAI | Electronic Associates Incorporated |
| ECS | Environmental control system |
| EDS | Emergency detection system |
| ELS | Earth landing system |
| ESS | Essential |
| EVA | Extra-vehicular astronaut |
| FBC | Fully-buffered channel |
| F/C | Fuel cell |
| FDAI | Flight director attitude indicator |
| GFE | Government-furnished equipment |
| G&N | Guidance and navigation |
| GMT | Greenwich mean time |
| GOSS | Global operational support system |
| GSE | Ground support equipment |
| GSSC | Ground system simulation computer |
| HS | Heat shield |
| HF | High frequency |
| IGN | Ignition |
| IIS | Infinity image system |
| IMCC | Integrated mission control center |
| IMU | Inertial measurement unit |
| IO | Instructor-operator |
| I/O | Input-output |
| IOS | Instructor-operator station |
| IRIG | Inertial reference integrating gyro |
| IUDL | Integrated up-data link |
| INV | Inverter |
| JETT | Jettison |
| KMC | Kilo megacycle |
| KYBD | Keyboard |
A-1
