Crestron QM-RMC - Page 18

Room Media Controller Crestron QM-RMC
manufacturer’s documentation for further information about the
COM ports on your PC.
3. Ensure that you have a serial connection to Port B, and reset the
control system as follows:
a. Open Viewport and click Setup | Communications Settings
to display the “Port Settings” window. Choose RS-232 as the
connection type.
b. Set the baud rate of the PC to 115200.
c. Set the baud rate of the QM-RMC control system to 115200,
as follows:
- Press and release the HW-R button on the unit’s front
panel.
- Press and hold the SW-R button for approximately three
to five seconds. The Viewport console should display the
following message:
Viewport Message
QMRMC>
Control Console
Changing to default Comm Specs. 115200 N81 RTS/CTS
Switch to new settings….
Bypassing Program Load!!!
- Release the SW-R button.
d. If communication still cannot be established:
- Remove power from the control system.
- Press and hold the SW-R button on the front panel of the
QM-RMC.
- Reapply power to the control system.
- The Viewport console should display the message shown
above.
- Release the SW-R button.
e. Select Set Baud Rate on the Viewport Functions menu (or
press F8) and choose any baud rate from the drop-down list.
This will attempt to establish a connection at the indicated
baud rate. If the connection is successful, both the PC and the
control system will be set to the new baud rate. The QM-RMC
will return to its original communication settings when the
program reinitializes.
f. Reinitialize the unit by recycling the power or pressing the
HW-R button while pressing and holding the SW-R button. If
the connection is established, the Viewport console should
display some text and the QMRMC> prompt.
g. If communication still cannot be established, contact Crestron
customer service.
14 • Room Media Processor: QM-RMC Operations Guide - DOC. 6161