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137 Appx. C
C.23 COM Port Connector (CN19)
Table C.23: COM Port Connector (CN19)
Pin Signal Pin Signal
1 RLSD1 (DCD1) 2 DSR1
3RX1 4RTS1
5TX1 6CTS1
7DTR1 8RI1
9GND 10GND
11 RLSD2 (DCD2) 12 DSR2
13 RX2 14 RTS2
15 TX2 16 CTS2
17 DTR2 18 RI2
19 GND 20 NC
21 RLSD3 (DCD3) 22 DSR3
23 RX3 24 RTS3
25 TX3 26 CTS3
27 DTR3 28 RI3
29 GND 30 NC
31 RLSD4 (DCD4) 32 DSR4
33 RX4 34 RTS4
35 TX4 36 CTS4
37 DTR4 38 RI4
39 GND 40 NC