A SERVICE OF

logo

COM Ports 37
E-EQ-MX5PCRG-F-ARC MX5 Reference Guide
RS-232 Serial Ports
RS-232 connection is made through an RS-232 Serial Port if installed. The connector is an
industry-standard RS-232 DB26 female connector.
Figure 2-4 MX5 RS-232 Ports
COM1
PIN SIGNAL PIN SIGNAL
1 CHG + 14 CHG GND
2 CHG + 15 CHG GND
3 CHG + 16 CHG GND
4 DCD1 17 RX2
5 RX1 18 TX2
6 TX1 19 GND
7 DTR1 20 RTS2
8 DSR1 21 VCCOUT2
9 RTS1 22 CTS
10 CTS1 23 VCCOUT1
11 SHIELD 24 SHIELD
12 USB +5V 25 USB COM
13 USB + 26 USB -
COM4
PIN SIGNAL PIN SIGNAL
1 CHG + 14 CHG GND
2 CHG + 15 CHG GND
3 CHG + 16 CHG GND
4 DCD2 17 NC
5 RX2 18 NC
6 TX2 19 GND
7 DTR2 20 NC
8 DSR2 21 NC
9 RTS2 22 NC
10 CTS2 23 VCCOUT2
11 NC 24 NC
12 NC 25 NC
13 NC 26 NC
Figure 2-5 DB26 RS-232 Pinouts