Chapter 5
GPS-20A
Installation Manual
Technical References
5.3 Input/Output circuits
5.3.1 Navigation unit and connections
+Vcc
5.3.2 Beacon receiver and connections
5.3.3 GPS-20A input/output circuit
Serial data input circuit (listener side):
Input load: 600 ohm
Device: Photo-coupler TLP151A (Toshiba)
White
Green
470 – 1k ohm
Data output (+)
Data output (-)
Serial data input circuit
Photo-coupler
Receive circuit
NMEA 0183 format
GPS sensor
470 – 1k ohm
Data output
Diode
(1S2076, etc)
(PC317, etc)
Navigation unit
OUT (+)
OUT (-)
White
Green
Data output (+)
Data output (-)
Data output (+)
Data output (-)
Orange
NMEA 0183 format
Blue
Beacon receiver
IN (+)
IN (-)
(Position data)
GGA, GLL sentence
GPS sensor
Data input (+)
Differential data
Data input (-)
DATA IN
(+)
DATA IN (-)
600
TLP-115A
+Vcc
DATA OUT(+)
5-6
0092621632-05
