Serial Connector (Com1 And Com2); Pinout - Honeywell Thor VM1 Reference Manual

Serial Connector (COM1 and COM2)

The COM1 and COM2 connectors are D-9 male connectors located on the back of the Quick Mount Smart Dock.
Power the Thor VM1 off before attaching a cable to any port (serial, USB, Audio/CAN, etc.).
The serial connectors are industry-standard RS-232, PC/AT standard 9–pin "D" male connector.
By default, Pin 9 is configured to provide +5V for an external bar code scanner. Pin 9 of
configured to provide RI.
If a COM port is not being used for a scanner, it can be used for

Pinout

Pin Signal
1 DCD
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
+5VDC
9 or
RI
Shell CGND
Description
Data Carrier Detect – Input
Receive Data – Input
Transmit Data – Output
Data Terminal Ready – Output
Signal/Power Ground
Data Set Ready – Input
Request to Send – Output
Clear to Send – Input
Bar Code Scanner Power - 500mA max
or
Ring Indicator - Input
Chassis Ground
COM1
screen blanking when the vehicle is in motion.
or COM2 may also be
2-11