Kennmex K875, Hardware Service Manual

Page: 43 / 44

System FAN Connector (CN22)
IrDA onne
COM 1, COM 2 , COM 3, COM 4 (RJ45_2)
C ctor (CN23)
PIN No. Signal Description PIN No. Signal Description
1 N/C 21 N/C
2 RS232_1_DCD# 22 RS232_3_DCD#
3 RS232_1_DSR# 23 RS232_3_DSR#
4 RS232_1_RX# 24 RS232_3_RX#
5 RS232_1_RTS# 25 RS232_3_RTS#
6 RS232_1_TX# 26 RS232_3_TX#
7 RS232_1_CTS# 27 RS232_3_CTS#
8 RS232_1_DTR# 28 RS232_3_DTR#
9 GND 29 GND
10 30 RS232_3_RI RS232_1_RI
11 N/C 31 N/C
12 RS232_2_DCD# 32 RS232_4_DCD#
13 RS232_2_DSR# 33 RS232_4_DSR#
14 RS232_2_RX# 34 RS232_4_RX#
15 RS232_2_RTS# 35 RS232_4_RTS#
16 RS232_2_TX# 36 RS232_4_TX#
17 RS232_2_CTS# 37 RS232_4_CTS#
18 RS232_2_DTR# 38 RS232_4_DTR#
19 GND 39 GND
20 RS232_2_RI 40 RS232_4_RI
PIN No. Signal Description
1 +5V
2 Feedback
3 GND
PIN No. Signal Description
1 +5V
2 IRDA_RX
3 IRDA_TX
4 GND
43