Controlling an External Device
When Control of EXTERNAL DEVICE is selected, you can set VP-551X to automatically
send RS-232 commands to a device (for example, to turn off a projector when no video signal
is detected on the VP-551X input).
To send commands to an external device:
1. In the Navigation pane, click RS-232. The Audio RS-232 page appears.
2. Set RS-232 Control to Control of EXTERNAL DEVICE:
Figure 29: RS-232 Page – Controlling an External Device
3. Under RS-232 Configuration set the RS-232 port parameters to enable communication
with the acceptor.
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