User manual

51 TREK-753 User Manual
Appendix A High Density Cable Pin Assignment
A.3 RS-232 Connector (DB9 Male) (COM9)
A.4 4DI /4DO & RS-485 (DB15 Type Male) (COM5)
Table A.3: RS-232 Connector (DB9) (COM9)
Pin Number Definition
1 RS232_DCD
2 RS232_RXD#
3 RS232_TXD#
4 RS232_DTR
5 GND(Drain wire)
6 RS232_DSR
7 RS232_RTS
8 RS232_CTS
9 RS232_RI
Table A.4: 4DI /4DO & RS-485 (DB15 Type Male) (COM5)
Pin Number Definition
1ISO_DI1
2ISO_DI2
3ISO_DI3
4ISO_DI4
5GND_ISO
9ISO_DO1
10 ISO_DO2
11 ISO_DO3
12 ISO_DO4
13 RS485+
14 RS485-
15 GND(Drain wire)