Identity Code - Crestron QM-FTCC Operations & Installation Manual

QuickMedia™ FlipTop Computer Center
QM Network Topology
Origination Points
QM-TX
QM-FTCC
QM-WMC
16 • QuickMedia™ FlipTop Computer Center: QM-FTCC
The aggregate cable length of a signal path originating at a QM-FTCC and
terminating at a QM receiver must not exceed 450 feet (137 meters). Video signals
may experience a loss of quality over very long lengths of cable. This phenomenon is
due to the added resistance and capacitance of longer cable lengths and is not
peculiar to either Crestron and/or QuickMedia systems. To ensure sufficient
bandwidth, the maximum aggregate cable length should not exceed 450 feet. The use
of lower-resolution signals may allow increased cable length but must be tested by
the installer with the sources to be used. The QM pin assignment is based on the
EIA/TIA 568B RJ-45 Jack standard.
NOTE: When using CresCAT-QM wiring, four additional wires are included for
making Cresnet connections.
When connecting multiple QM devices, the route between a QM origination point
(transmitter) and a QM endpoint (receiver) cannot have more than two midpoints
(e.g. QM-MD7x2 or other QM switchers). Refer to the following diagram when
configuring a QM network.
NOTE: The aggregate length from transmitter to receiver cannot have a delay skew
of more than 22 ns.
NOTE: When used with a QM-RMCRX, delay skew should not exceed 15 ns.
QM
QM-MD7x2
QM

Identity Code

The Net ID of the QM-FTCC has been factory set to 1A. The Net IDs of multiple
QM-FTCC devices in the same system must be unique. Net IDs are changed from a
personal computer (PC) via Crestron Toolbox™ (refer to "Establishing
Communication" on page 31).
When setting the Net ID, consider the following:
•
The Net ID of each unit must match an ID code specified in the SIMPL™
®
Windows program.
•
Each network device must have a unique Net ID.
For more details, refer to the Crestron Toolbox help file.
Crestron QM-FTCC
Midpoints
QM
QM-MD7x2
QM
Operations & Installation Guide – DOC. 6313B
Endpoints
QM
QM-RMCRX-BA
QM-RX
QM