Crestron electronic QM-DA User Manual
Crestron QM-DA
QuickMedia™ Distribution Amplifier
Operations Guide
This document was prepared and written by the Technical Documentation department at:
Crestron Electronics, Inc.
15 Volvo Drive
Rockleigh, NJ 07647
1-888-CRESTRON
All brand names, product names and trademarks are the property of their respective owners.
©2007 Crestron Electronics, Inc.
Crestron QM-DA QuickMedia™ Distribution Amplifier
Contents
QuickMedia™ Distribution Amplifier: QM-DA 1
Introduction ...............................................................................................................................1
Features and Functions................................................................................................ 2
Specifications ..............................................................................................................2
Physical Description.................................................................................................... 3
Industry Compliance ...................................................................................................6
Setup .......................................................................................................................................... 7
Network Wiring........................................................................................................... 7
QuickMedia Wiring..................................................................................................... 7
Installation................................................................................................................... 8
Hardware Hookup .....................................................................................................10
Problem Solving ......................................................................................................................12
Troubleshooting......................................................................................................... 12
Check Network Wiring..............................................................................................13
Reference Documents................................................................................................14
Further Inquiries........................................................................................................14
Future Updates ..........................................................................................................14
Return and Warranty Policies.................................................................................................. 15
Merchandise Returns / Repair Service ......................................................................15
CRESTRON Limited Warranty.................................................................................15
Operations Guide – DOC. 6547A Contents • i
Crestron QM-DA QuickMedia™ Distribution Amplifier
QuickMedia™ Distribution
Amplifier: QM-DA
Introduction
The QM-DA-4, QM-DA-8 and QM-DA-16 are QuickMedia™ (QM) distribution
amplifiers designed to distribute a single QM signal to up to four, eight or 16 QM
receivers. (The QM-DA-4 has four outputs, the QM-DA-8 has eight outputs and the
QM-DA-16 has 16 outputs.) All signal distribution is provided over inexpensive
CAT5e type cable via Crestron’s exclusive QM transport, supporting high resolution
RGB, video, stereo audio and microphone signals up to a total distance of 450 feet
(137 meters).
Up to two QM distribution amplifiers, matrix switchers and distribution centers may
be cascaded in a given QM signal path to support versatile system configurations.
For instance, a QM-DA-4 may be used to expand the output capacity of a
QM-MD4X2 to feed a single output to four different displays. A QM-DA-8 may be
used to feed that output to eight different displays and a QM-DA-16 may be used to
feed that output to sixteen different displays.
Every QM port on the rear panel is accompanied by a Cresnet® port with 24 VDC
power distribution built in to simplify termination of the QM and Cresnet wiring.
On the QM-DA-16 (only), a built-in Cresnet hub provides three isolated segments,
each supporting 3000 feet (914 meters) of Cresnet cabling and approximately 25
Cresnet devices.
NOTE: For QM wiring use CresCAT-QM, CresCAT-IM or quality CAT5e/CAT6
cable with a maximum delay skew of 15 ns per 100 m. The maximum aggregate
cable length and delay skew between any QM transmitter (origination point) and QM
receiver (endpoint) is 450 feet (137 meters) and 22 ns. A maximum of two QM
midpoint devices may be inserted into a given QM signal path. Exceptions apply;
refer to each respective product manual for details.
For simplicity within this guide, all models will hereinafter collectively be referred to
as QM-DA, except where noted.
Operations Guide – DOC. 6547A QuickMedia™ Distribution Amplifier: QM-DA • 1
QuickMedia™ Distribution Amplifier Crestron QM-DA
Features and Functions
• QuickMedia signal distribution amplifier
1 to 4 in QM-DA-4
1 to 8 in QM-DA-8
1 to 16 in QM-DA-16
• Easy single cable connections
• No control or adjustments necessary
• Single space rack mountable
• Built-in Cresnet
®
distribution
• Built-in Cresnet hub/repeater (QM-DA-16 only)
Specifications Specifications
Specifications for the QM-DA are listed in the following table. Specifications for the QM-DA are listed in the following table.
QM-DA Specifications QM-DA Specifications
SPECIFICATION SPECIFICATION DETAILS DETAILS
Video/RGB
DA
Gain 0 dB
Audio
DA
Gain 0 dB
Power
Cresnet Power Usage
Environmental
Temperature 41º to 104ºF (5º to 40ºC)
Humidity 10% to 90% RH (non-condensing)
Heat Dissipation
Distribution amplifier
1 to 4 in QM-DA-4
1 to 8 in QM-DA-8
1 to 16 in QM-DA-16;
distributes QM video input signal to all outputs
4 in QM-DA-4
8 in QM-DA-8
16 in QM-DA-16
Distribution amplifier
1 to 4 in QM-DA-4
1 to 8 in QM-DA-8
1 to 16 in QM-DA-16;
distributes QM audio input signal to all outputs
4 in QM-DA-4
8 in QM-DA-8
16 in QM-DA-16
QM-DA-4: 10 Watts (0.41 Amps @ 24 Volts DC)
QM-DA-8: 16 Watts (0.66 Amps @ 24 Volts DC)
QM-DA-16: 24 Watts (1.00 Amps @ 24 Volts DC)
QM-DA-4: 33 BTU/Hr
QM-DA-8: 54 BTU/Hr
QM-DA-16: 81 BTU/Hr
(Continued on following page)
2 • QuickMedia™ Distribution Amplifier: QM-DA Operations Guide – DOC. 6547A
Loading...