Canon BJC 50 - Color Inkjet Printer Service Manual page 173

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
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Part 5: Maintenance