Model: 2155-1

60 as-c11 communications coded keys; 20 special functions keys; power requirements input plus 5 volts dc porm 5pct at 1.2 amp max, - 12 volts dc porm 20 pct at 5 milliamp max, keyboard ground at 0 volts; output logic o plus 0.6 volts dc max at 1.6 milliam (sinking), logic 1 plus 2.55 volts dc min.; positive logic at 0.12 milliamp max(sourcing)timing data bits are held in memory until the next key depression; function key outputs key unoperated plus 0.25 volts dc max with load resistance of 2500 ohms or less, key operated plus 2.8volts dc min 1 to 10 milliamp current source; strobe outputs all keys in unoperated state plus 0.6 volts dc max at1.6 milliamp(sinking), key operated plus 2.55 volts dc min at 0.12 milliamp max(sourcing) pulsed output pulse duration 10 microseconds min, timing data bits are true prior to strobe pulse; mounted by four captive panel screws on 3equally spaced 4.333 in mounting centers; complement data 1 keyboard; 1 keyboard case

5815-01-070-3855

2155-1

Keyboard,manual Entry