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Serial Connector – COM1
COM1 provides +5v on pin 9 when enabled. Only COM1 should be used to connect an external scanner to the
Thor VX9.
The serial connector, with a (1) label, (configured as COM1) is industry-standard RS-232. The connector includes a PC/AT
standard 9–pin “D” male connector. The VMT Manager controls the function of pin 9. Pin 9 is capable of supplying +5 VDC for
an external bar code scanner. Refer to VMT Manager for more information on configuring pin 9.
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
9
+5VDC
or
RI
Ring Indicator – Input (Default)
or
Bar code Scanner Power – 400mA max
Note: Pin 9 of the COM port can be switched between +5V and RI. See VMT Manager.
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