Extron Electronics VSC 500_700_700D User Guide - Manual (Page 27)

Serial
Communication
The VSC 500, 700, and 700D can be remotely controlled via a host computer or other device
(such as a control system) attached to the rear panel RS-232/422 connector. The control
device (host) can use either the Extron Simple Instruction Set (SIS™) commands or the
graphical control program for Windows.
The video scan converter uses a protocol with:
• 9600 baud
• 1 stop bit
• no parity
• no flow control
The rear panel RS-232/422 9-pin D connector has the following pin
assignments:
Pin RS-232 function Description
1
No connection
2 Tx Transmit data
3 Rx Receive data
4 Tx 2 Transmit data
5 Gnd Signal ground
6 No connection
7 No connection
8 Rx 2 Receive data
9 No connection
Pin RS-422 function Description
1
No connection
2 Tx- Transmit ground
3 Rx- Receive ground
4 No connection
5 Gnd Signal ground
6 No connection
7 Rx+ Receive data
8 Tx + Transmit data
9 No connection
DB9 Pin Locations
Female
5 1
9 6
VSC 500/700/700D User Guide • Serial Communication 21