VGA/Stereo Audio Selection Switcher 2x1
PTN Electronics Limited
5
www.PTN-electronics.com
5.3. Connection with Control System
With the RS232 port, the switchers can be control by several kinds of control systems.
This RS232 communication port is a female 9-pin D connector. The definition of its
pins is as the table below.
No.
Pin
Function
1
N/u
Unused
2
Tx
Transmit
3
Rx
Receive
4
N/u
Unused
5
Gnd
Ground
6
N/u
Unused
7
N/u
Unused
8
N/u
Unused
9
N/u
Unused
F5-3 9HDF
5.4. Connection with Computer
Please connect reference to the following contents.
1)
Use a RS232 control line to connect the COM1 or COM2 port of the computer to
the RS232 interface of WVG2AL.
Note
: The two ends of the control line are different, one is a phoenix connector,
and the other one is a male 9-pin connector. The connecting form is showed as
below.
Pin
①
: Connect to the No.2 pin of the male 9-pin connector.
Pin
②
: Connect to the No.5 pin of the male 9-pin connector.
Pin
③
: Connect to the No.3 pin of the male 9-pin connector.
2)
Install the serial driver.
3)
Run the COM software and check the connecting state.
4)
If it
’s OK, then we can control WVG2AL by sending RS232 command codes. If not,
probably the control line is bad contact.