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Trek-725 User Manual 86
B.11 GSM/GPRS Adaptor Board Connector (CN16)
This is a DF13-20DP-1.25C connector.
B.12 COM1 & COM2
Pin Signal Pin Signal
1 UART3_CTS 2 nGSM_RST
3 UART3_RTS 4 GND
5 UART3_TXD 6 GND
7 UART3_RXD 8 GND
9 UART3_DCD 10 UART6_CTS
11 UART3_DSR 12 UART6_RTS
13 UART3_DTR 14 GSM_VCC
15 UART3_RI 16 GSM_VCC
17 UART6_TXD 18 GSM_VCC
19 UART6_RXD 20 GSM_VCC
Pin Signal
1DCD
2RxD
3TxD
4DTR
5GND
6DSR
7RTS
8CTS
9RI