Serial Connector - COM4

COM4 provides +12v on pin 9 when enabled.

Do not connect a serial bar code scanner to COM4 as this may damage the scanner, the Thor VX8 or both.

The COM4 serial connector is an industry-standard RS-232 9-pin “D” connector. The connector and its pin assignments are shown below.

Pinout

Pin

Signal

Description

 

 

 

1

DCD

Data Carrier Detect – Input

 

 

 

2

RXD

Receive Data – Input

 

 

 

3

TXD

Transmit Data – Output

 

 

 

4

DTR

Data Terminal Ready – Output

 

 

 

5

GND

Signal/Power Ground

 

 

 

6

DSR

Data Set Ready – Input

 

 

 

7

RTS

Request to Send – Output

 

 

 

8

CTS

Clear to Send – Input

 

 

 

 

RI

Ring Indicator – Input (default)

9

or

or

 

+12VDC

Power – 400mA max

 

 

 

Note: Pin 9 of the COM port can be switched between +12V and RI. See VMT Manager.

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