VGA/Stereo Audio Selection Switcher 4X1
PTN Electronics Limited
4
www.PTN-electronics.com
the RS232 port is still available for controlling.
5.2. Connection with Control System
With the RS-232 port, the switchers can be control by several kinds of control
systems.
This RS-232 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
5.3. 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 WVG4A.
2)
Install the serial driver.
3)
Run the COM software and check the connecting state.
4)
If it
’s OK, then we can control WVG4A by sending RS232 command codes. If not,
probably the control line is bad contact.
