QuickMedia™ Receiver/Processor Crestron
QM-RMCRX
Serial Connection
Connect the COM B port on the QM-RMCRX
control system to one of the COM ports (usually
COM 1) on the PC. The QM-RMCRX requires the
use of a null-modem RS-232 cable with DB9
female connectors on both ends. Most c
available cables are acceptable; they should have at
least five pins for transmit, receive, ground, and
hardware handshaking (pins 2, 3, 5, 7 and 8).
ommercially
rial console connection may be established only if
SW-R
button is pressed
e
ay, the
NOTE:
The COM B LED will flash when in the console mode.
Pins
2
3
5
7
8
Pins
2
3
5
7
8
Null Modem Cable
Se
and held about 5 to 7 seconds during power up (wait for Viewport to display
some information), or if pressed and held at the same time
HW-R
is
momentarily pressed. The serial console mode is also established if th
processor is configured as a master, but has no program loaded. In this w
console mode is enabled out-of-the-box and the user does not have to perform
any special steps to initially configure the processor.
NOTE:
The Viewport utility performs multiple system tasks, primarily via an
d
RS-232 or TCP/IP connection between the control system and a PC. It is used to
observe system processes, upload new operating systems and firmware, change
system and network parameters, and communicate with network device consoles
and touchpanels, among many other tasks. Viewport can also function as a
terminal emulator for generic file transfer. All of these functions are accesse
through the commands and options in the Viewport menus. Therefore, for its
effectiveness as a support and diagnostic tool, the Crestron Viewport may be
preferred over development tools when uploading programs and projects.
Open the Crestron Viewport and click
Setup | Communication Settings
to
ect COM port on the PC.
d.
•
•
ts = 8.
•
•
TS/CTS) enabled.
•
led.
display the “Port Settings” window. Then click
RS-232
as the connection type.
The PC communication settings specified here should match the protocol that
the QM-RMCRX expects. The settings are as follows:
•
Port = COM 1 through COM 8. Select the corr
•
Baud rate = 115200 (You can set the PC and the control system to a
different baud rate, by using the
Functions | Set Baud Rate
comman
Parity = None.
Number of data bi
Number of stop bits = 1.
Hardware handshaking (R
Software handshaking (XON/XOFF) not enab
20
•
QuickMedia™ Receiver/Processor: QM-RMCRX
Operations Guide - DOC. 6236A
