Canon BJC-55 Service Bulletin page 195

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BJC-50
CNIR1 (IrDA Module Connector)
Pin No.
Signal name
1
GND
2
MODE
3
+5.0V (Vcc1)
4
GND
5
RXD/PRXD
6
GND
7
TXD/PTXD
8
GND
9
+5.0V (Vcc1)
10
GND
IN/OUT
Description
OUT
IrDA unit type switch signal
IN/OUT
Infrared light transmitting & receiving signal
IN/OUT
Infrared light transmitting & receiving signal
5-33
Part 5: Maintenance

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