IEI Integration PM-945GSE - Manual (Page 46)

PM-945GSE-N270 User Manual
Page 46
15 TX2 16 CTS2#
17 DTR2# 18 RI2#
19 GND 20 GND
21 DCD3# 22 DSR3#
23 RX3 24 RTS3#
25 TX3 26 CTS3#
27 DTR3# 28 RI3#
29 GND 30 GND
31 DCD4# 32 DSR4#
33 RX4 34 RTS4#
35 TX4 36 CTS4#
37 DTR4# 38 RI4#
39 GND 40 GND
Table 3-16: RS-232 Serial Port Connector Pinouts
3.2.16 RS-422/485 Serial Port Connector
CN Label: CN4
CN Type: 4-pin wafer connector
CN Location: See Figure 3-18
CN Pinouts: See Table 3-17
The serial port connector connects to an RS-422 or RS-485 serial port device.
Figure 3-18: RS-422/485 Serial Port Connector Location