FOR-A VSF-128128, Operation Manual

Page: 43 / 106

31
8. Serial Control
8-1. General description
Basic crosspoint control can be performed from a computer using an RS-232C interface or
RS-422 interface. To use additional functions, see section 9. “Control by RS Commands”
8-2. RS-232C/RS-422 connector
Connector is 9-pin D-sub, female. Note that connector lock screws must be inch type screws.
The RS-232C/RS-422 connector is used for either RS-232C or RS-422 interface connection. A
setting in the internal MAIN board is used to select interfaces.
Refer to section 4-3-3. "Setting the RS-232C/RS-422 Connector" for settings. Factory default is
RS-232C.