Extron Electronics YCS SW6 MX User Guide - Manual (Page 12)

YCS SW6 MX • Serial Communication
Serial Communication, cont’d
YCS SW6 MX
A
Appendix
Reference Information
Specifications
Part Numbers
3-6
Figure 9 — Universal SW Control Program
For more information about program features, you can access
the Help program in any of the following ways:
• From the Extron Electronics program folder or group, double-
click on the Universal Switcher Help icon.
• From within the Universal SW Control Program, click on the
Help menu on the main screen.
• From within the Universal SW Control Program, press the F1
key.
Remote Contact Closure Operation
The RS-232 connector provides a way to control the switcher
from a remote contact closure device. This is made possible by
using pins that are not normally used by the RS-232 interface.
The contact closure pin assignments are shown in the table on
page 3-2.
To select a different input number through the RS-232 connector,
momentarily short the pin for the desired input number to the
signal ground (pin 5). To force one of the inputs to be selected,
leave the short to signal ground in place. This overrides any
front panel input selection.
Momentary contact is 250 – 500 milliseconds.
Avoid contact with pins 2 and 3, which are used
with the RS-232 interface. Shorting these pins to
ground or to other pins on the RS-232 connector
could damage internal circuits.