Sperry Marine 4914-CA, Operation, Installation And Service Manual

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IC 5 quad RS-422 output driver IC;
drives Sensor Data TB 7.1/7.2 and 7.3/7.4, Compass Monitor,
Display units
IC 6 quad RS-422 output driver IC;
drives Sensor Data TB 7.5/7.6,
SuperFast TB 7.9/7.10, Fast output,
nav. data printer
IC 12 UART
IC 25 follow-up motor phase 2 driver IC
IC 26 follow-up motor phase 1 driver IC
IC 33 UART
IC 34 software flash-memory IC, pre-programmed
IC 37 quad RS-422 output driver IC;
drives Sensor Data TB 7.13/7.14,
SuperFast TB 7.11/7.12
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TB 1 24 VDC backup supply power in / 24 VDC out
TB 2 relay status outputs (watch al. ackn., G1/G2, G/M, hdg. diff.,
pwr. fail.),
status inputs (op. unit M/R, ROT damping activation for ana-
logue ROT output (via wire link TB 2 3/4), Log/+180°),
200 pulse/nm speed input
TB 3 status inputs (Auto/Man, G1/G2, G/M),
rudder angle feedback units
fluxgate sensor
Switch-Over Unit
TB 4 ext. gyro,
Compass Monitor,
ext. operating unit
speed log NMEA
position NMEA
Fluxgate NMEA
status input (Mute)
TB 5 serial repeaters 1 – 6
TB 6 serial repeaters 7 – 12
TB 7 sensor data outputs,
Fast output,
SuperFast outputs,
6 step/° outputs,
nav. data printer output,
analogue rate of turn output