| ELECTRICAL TRANSMISSION TYPE | WIRE |
| USAGE DESIGN | INDOOR |
| STATION QUANTITY | 20 |
| ELECTRICAL POWER SOURCE RELATIONSHIP | OPERATING |
| AC VOLTAGE RATING | 105.0 VOLTS MINIMUM 1ST ALTERNATE OPERATING POWER RQMT |
| 256.0 VOLTS MAXIMUM 2ND ALTERNATE OPERATING POWER RQMT |
| FREQUENCY RATING | 50.0 HERTZ MINIMUM 1ST ALTERNATE OPERATING POWER RQMT |
| 60.0 HERTZ MAXIMUM 2ND ALTERNATE OPERATING POWER RQMT |
| PHASE | SINGLE 1ST ALTERNATE OPERATING POWER RQMT |
| SINGLE 2ND ALTERNATE OPERATING POWER RQMT |
| COMPONENT DOCUMENT ORIGIN | GOVERNMENT |
| DOCUMENT SOURCE | 81348 |
| DOCUMENT TYPE | FEDERAL SPECIFICATION |
| DOCUMENT IDENTIFICATION | W-I-00520 |
| COMPONENT DOCUMENT PAGE NUMBER | 4 |
| TRANSDUCER TYPE | HEADPHONE AND |
| MICROPHONE |
| TRANSDUCER QUANTITY | 42 |
| SPECIAL FEATURES | 20 AUDIO-ACTIVE-COMPARE BOOTHS |
| DEPARTURE FROM CITED DOCUMENT | W-I-00520 EXCEPT THAT PARAGRAPH 3.3.1.1,INSTRUCTOR CONSOLE,IS CHANGED TO READ B. TAPE REPRODUCER-ONE,G. OPERATORS CHAIR NOT REQUIRED,I. ONE SET OF HEADPHONES AND ONE MICROPHONE,PARAGRAPH 3.3.1.2.1,AUDIO-ACTIVE BOOTH,IS CHANGED TO READ C. OPERATORS CHAIR NOT REQUIRED |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 81348 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | WI00520 |