28 Connect Serial Printer or PC
VX3X User’s Guide E-EQ-VX3XOGWW-A
Connect Serial Printer or PC
Refer to the documentation received with the printer or PC for complete
instructions.
Pin 9 of COM3 (labeled “RS-232”) is configured to provide +5V. To change Pin 9 of the port,
please refer to the “VX3X Reference Guide”.
Caution – Do Not Use the USB-C Labeled Port for PC serial cables or printers.
The printer or PC cable requires a nine-pin D-shell female connector for the VX3X.
The printer or PC cable is attached to the connector labeled “RS-232”.
Note: Use of a shielded cable is required to maintain FCC and CISPR22 emissions
compliance.
RS-232
USB-C
Figure 19 Connect Serial Cable to COM3
1. Power off the VX3X before connecting the cable to the VX3X.
2. Seat the connector firmly over the pins and turn the thumbscrews in a clockwise
direction. Do not overtighten.
3. Use a strain relief clamp to secure the cable.
4. Press the power button to power up the VX3X.
