Crestron QM-AE
QuickMedia™ Audio Extractor
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.
©2005 Crestron Electronics, Inc.
Crestron QM-AE QuickMedia™ Audio Extractor
Contents
QuickMedia™ Audio Extractor: QM-AE 1
Introduction ..........................................................................................................1
Features and Functions...........................................................................1
QuickMedia Transport System...............................................................3
Specifications .........................................................................................4
Physical Description...............................................................................5
Industry Compliance ..............................................................................8
Setup..................................................................................................................... 8
Network Wiring .....................................................................................8
QM Network Wiring..............................................................................9
Crestron Toolbox ...................................................................................9
Identity Code........................................................................................ 10
Hardware Hookup ................................................................................13
Ground Wire Connections....................................................................14
Configuration Software ......................................................................................14
Earliest Version Software Requirements for the PC ............................15
Programming with Crestron SystemBuilder™.....................................15
Configuring with SIMPL Windows .....................................................20
Uploading and Upgrading ..................................................................................33
Communication Settings ......................................................................34
Troubleshooting Communications .......................................................37
Uploading a SIMPL Windows Program ..............................................37
Firmware Upgrade via Crestron Toolbox ............................................39
Problem Solving.................................................................................................41
Troubleshooting ...................................................................................41
Further Inquiries...................................................................................41
Future Updates .....................................................................................41
Appendix: QuickMedia Installation and Compensation..................................... 42
Installation Notes .................................................................................42
Compensation.......................................................................................42
Compatibility Charts ............................................................................44
Return and Warranty Policies.............................................................................46
Merchandise Returns / Repair Service .................................................46
CRESTRON Limited Warranty ...........................................................46
Operations Guide – DOC. 6331 Contents ●
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Crestron QM-AE QuickMedia™ Audio Extractor
QuickMedia™ Audio Extractor:
QM-AE
Introduction
Features and Functions
The QM-AE is a QuickMedia™ (QM) device designed to extract the audio
portion of a QM signal and provide a balanced line-level audio output. As part
of a complete MediaManager A/V presentation system, the QM-AE uses an
exclusive QuickMedia transport from Crestron®, allowing the QM-AE to receive
audio signals over a single inexpensive CresCAT-QM cable from any
QuickMedia Wall Plate, FlipTop Box, QM Processor, or QM Distribution
Center.
The QM-AE breaks out the audio (program left, program right and microphone)
signals to feed the respective inputs of an audio amplifier. The QM signal,
which contains the audio and the video information, is looped through the
QM-AE. This permits the QM-AE to be inserted anywhere within the QM
network.
Functional Summary
• Programmable logic via SystemBuilder™ and SIMPL Windows,
including SIMPL+
• Line-level speech, program left, and program right
balanced/unbalanced outputs.
• Independent mixing of program left, right and microphone signals for
each output.
• Electronically adjustable volume, bass, treble, mute and 12-band
parametric equalizer.
• Speech delay of up to 40 ms for loudspeaker alignment.
• Automatic compensation recalls microphone equalizer settings and
source compensation settings of multiple QuickMedia origination
points.
• Two QuickMedia passthrough ports.
• Two Cresnet passthrough ports.
• Rack mountable with optional ST-RMK (1 space height).
®
.
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QuickMedia™ Audio Extractor Crestron QM-AE
Block Diagram of the QM-AE
Microphone Mixing
The QM input can carry up to two microphone channels from a remote QM
transmitter. The microphone signals are fed into a microphone mixer while four
bands of equalization are applied to each microphone signal. The output is then
routed to the three audio mixers, left, right and speech.
Program Mixing
The microphone mix described previously, and the program left and right audio
inputs are fed to a mixing stage. The mixer combines the program audio and the
microphone signals into three outputs, program (stereo left and right) and speech
(monaural). The microphone signals can be mixed into the stereo program and
the stereo program can be mixed into the speech. After mixing, volume,
equalization and tone control can be applied.
NOTE: The QM-AE is compatible with 2-Series control systems only.
NOTE: For more information on this and other QM applications, refer to the
latest revision of the Crestron MediaManager Control, Switching and
Management Applications Guide (Doc. 6244) which can be downloaded from
the Crestron website (http://www.crestron.com/manuals).
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QuickMedia Transport System
Using a new, proprietary signal routing solution, signals such as composite
video, S-video, RGBHV, audio, and microphone are all transported using a
single cable solution called QuickMedia (QM).
The QM transport system port is capable of managing computer, video, and
audio signals simultaneously through one CresCAT-QM UTP (unshielded
twisted pair) wire, simplifying installations.
Routing CresCAT-QM UTP cable is less expensive and much simpler than
routing multi-colored, multi-conductor coax cable. All Crestron products using
the QM transport system are capable of sending and receiving QM signals via
standard CresCAT-QM cable. Installation of any QM device is as simple as
installing one set of QM wires from output to input. Installations are flexible,
affordable, and fast.
The Crestron QuickMedia cable “CresCAT-QM” contains one CAT5E cable
and one Cresnet
CresCAT-QM Cable
NOTE: Do not untwist the two wires in a single pair for more than 1/3-1/2"
(0.84 – 1.27 cm) when making a connection. The twists are critical to canceling
out interference between the wires.
The QuickMedia transport mechanism performs delay compensation on each
video input to compensate for signal skew, and frequency/bandwidth
compensation for cable length. Signal skew occurs when part of the signal is
delayed with respect to other signal components. The amount of skew largely
depends on the length and the design of the wire. Because CAT5 consists of
twisted pairs that are twisted together in the cable, unequal wire lengths are
created.
The maximum aggregate cable length from QM transmitter to QM receiver is
limited by the loss of bandwidth over long distances and the amount of available
skew compensation. A cable rated at 22 ns of skew per 100 meters (328 ft.)
means that a cable will have no more than a 22 ns difference between the fastest
and slowest RGB signals over 100 meters of cable.
®
cable in siamese jackets.
To determine the allowable maximum length of installed cable, the installer
must first perform a calculation based on the skew rating of the cable.
Skew compensation is primarily relevant to RGB sources; however, any/all
video or VGA 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 particular to either Crestron and/or QuickMedia
systems. To ensure sufficient bandwidth to support signal resolutions up to
1600 x 1200, the maximum aggregate cable length should not exceed 328 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. Refer to page 9 for
additional QM network wiring information.
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QuickMedia™ Audio Extractor Crestron QM-AE
Specifications
Specifications for the QM-AE are given in the following table.
QM-AE Specifications
SPECIFICATION DETAILS
Cresnet Power Usage 5 W (.21 A @ 24 VDC)
Default Cresnet ID 21
Firmware Version 1.14
2-Series Control
System Update Files
Ports/Connectors
QM Two QuickMedia 8-wire RJ-45 ports
Cresnet Two 4-pin 3.5 mm detachable terminal blocks. Connects to
Line Out Three 3-pin detachable terminal blocks, audio line-level
Maximum line-level output 4 V
Output impedance 200 Ω (Balanced)
Frequency response 20 Hz to 20 kHz, +/- 0.5 dB
Signal-to-noise ratio 20 Hz to 20 kHz, 90 dB
Total harmonic distortion 20 Hz to 20 kHz, 0.05%
Rack Space 1 unit high, ½ unit wide
Environmental
Temperature
Environmental Humidity 10% to 90% RH (non-condensing)
Dimensions & Weight Height: 1.80 in (4.58 cm)
Accessories ST-RMK Rack Mount Kit (Not included)
1. The latest software versions can be obtained from the Crestron website. Refer to the NOTE
following these footnotes.
2. Crestron 2-Series control systems include the AV2 and PRO2. Consult the latest Crestron Product
Catalog for a complete list of 2-Series control systems.
PRO2 minimum cuz version 3.17 or later
1,2
MP2 minimum cuz version 3.139 or later
QM-RMCRX minimum cuz 3.125 (without auto compensation)
QM-RMCRX minimum cuz 3.147 or later (with auto
compensation)
Connects via CresCAT-QM to a QuickMedia system. (Refer to
the note following the specifications table)
Cresnet control network
balanced output connectors for left, right and speech
(Balanced)
RMS
(Unbalanced)
2 V
RMS
100 Ω (Unbalanced)
A-weighted
41° to 104°F (5° to 40°C)
Width: 7.07 in (17.96 cm)
Depth: 6.33 in (16.08 cm)
Weight: 2.00 lb (0.91 kg)
NOTE: Crestron software and any files on the website are for Authorized
Crestron dealers and Crestron Authorized Independent Programmers (CAIP)
only. New users may be required to register to obtain access to certain areas of
the site (including the FTP site).
NOTE: Purchase CresCAT-QM for the most cost-effective cabling solution.
For plenum applications, use CresCAT-QM-P. Maximum aggregate cable length
is approximately 300 feet (with a delay skew of less than 22 ns) from QM
transmitter to QM receiver. A maximum of two QM distribution centers may be
inserted in-line (refer to page 9).
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Physical Description
The QM-AE is housed in a black enclosure with labels on the front and rear
panels. There are two LEDs on the front of the unit for indicating the unit’s
current status. All connections, except for the Cresnet and QuickMedia
connections, are made on the back of the unit. There are four rubber feet on the
base of the unit for stability and to prevent slippage. Refer to the following
physical views.
Front View
Rear View
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QuickMedia™ Audio Extractor Crestron QM-AE
QM-AE Physical Dimensions
Indicators
The QM-AE front panel indicators are described as follows.
PWR (Power)
This green LED illuminates when the unit is connected to Cresnet and receives
24 VDC.
NET
This yellow LED illuminates when the QM-AE communicates with the control
system.
Rear Panel Ports
The QM-AE rear panel ports are illustrated and described as follows.
AUDIO OUT - SPCH
This 3-pin terminal connector provides a balanced audio output for the
microphone (MIC) components of a QM system. (Program audio left and right
can be mixed into this output.)
AUDIO OUT - L
This 3-pin terminal connector provides a balanced audio output for the left
program audio portion of a QM system. (Speech components can be mixed into
this output.)
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AUDIO OUT - R
This 3-pin terminal connector provides a balanced audio output for the right
program audio portion of a QM system.
QM
1
RJ-45 QuickMedia Connector Pin and Pair Assignment
MALE RJ-45 CONNECTOR
8
QM (IN and OUT)
The two 8-pin RJ-45 QuickMedia transport ports accept CresCAT-QM audio
and control signals. The audio portion of the QM signal is extracted from the
QM IN connector. The QM OUT connector contains all of the original QM
signals and is used to pass these signals on to another QM device. The QM port
conforms to the 568B wiring standard.
RJ-45 PIN
NUMBER
1 WHITE/ORANGE - RGB RED - CHROMINANCE
2 ORANGE + RGB RED + CHROMINANCE
3 WHITE/GREEN - RGB GREEN - LUMINANCE
4 BLUE + AUDIO + AUDIO
5 WHITE/BLUE - AUDIO - AUDIO
6 GREEN + RGB GREEN + LUMINANCE
7 WHITE/BROWN - RGB BLUE - COMPOSITE
8 BROWN + RGB BLUE + COMPOSITE
WIRE COLORS
(EIA 568B)
QM ASSIGNMENT
RGB AND AUDIO
QM ASSIGNMENT
COMPOSITE,
S-VIDEO AND
AUDIO
NET (Loop-through)
The two four-pin 5 mm detachable terminal block NET connectors are used for
connection to Cresnet and expansion to other peripherals.
Pins 24 and G provide 24 VDC and ground.
Pins Y and Z provide communications (data).
Power to the unit (5 W) is supplied through this connector.
SETUP LED and Pushbutton
The QM-AE is TouchSettable ID (TSID) ready. The SETUP pushbutton and its
associated LED are located on the rear of the unit and are used for setup of the
QM-AE network ID during the initial configuration of a Cresnet system or when
the device is being added or replaced.
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QuickMedia™ Audio Extractor Crestron QM-AE
Industry Compliance
As of the date of manufacture, the QM-AE has been tested and found to comply
with specifications for CE marking and standards per EMC and
Radiocommunications Compliance Labelling.
NOTE: This device complies with part 15 of the FCC rules. Operation is
subject to the following two conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any interference received, including
interference that may cause undesired operation.
Setup
Network Wiring
CAUTION: In order to ensure optimum performance over the full range of
your installation topology, Crestron Certified Wire, and only Crestron Certified
Wire, may be used. Failure to do so may incur additional charges if support is
required to identify performance deficiencies as a result of using improper wire.
CAUTION: Use only Crestron power supplies for Crestron equipment. Failure
to do so could cause equipment damage or void the Crestron warranty.
CAUTION: Provide sufficient power to the system. Insufficient power can lead
to unpredictable results or damage to the equipment. Please use the Crestron
Power Calculator to help calculate how much power is needed for the system
(http://www.crestron.com/calculators
When calculating the length of wire for a particular Cresnet run, the wire gauge
and the Cresnet power usage of each network unit to be connected must be taken
into consideration. Use Crestron Certified Wire only. If Cresnet units are to be
daisy-chained on the run, the Cresnet power usage of each network unit to be
daisy-chained must be added together to determine the Cresnet power usage of
the entire chain. If the unit is a home-run from a Crestron system power supply
network port, the Cresnet power usage of that unit is the Cresnet power usage of
the entire run. The wire gauge and the Cresnet power usage of the run should be
used in the following equation to calculate the cable length value on the
equation’s left side.
Cable Length Equation
40,000
Where:
L <
R x P
Make sure the cable length value is less than the value calculated on the right
side of the equation. For example, a Cresnet run drawing 20 watts should not
have a length of run more than 333 feet.
).
L = Length of run (or chain) in feet.
R = 6 Ohms (Crestron Certified Wire: 18 AWG (0.75 MM
P = Cresnet power usage of entire run (or chain).
2
))
NOTE: All Crestron certified Cresnet wiring must consist of two twisted pairs.
One twisted pair is the +24V conductor and the GND conductor, and the other
twisted pair is the Y conductor and the Z conductor.
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NOTE: When daisy-chaining Cresnet units, strip the ends of the wires carefully
to avoid nicking the conductors. Twist together the ends of the wires that share a
pin on the network connector, and tin the twisted connection. Apply solder only
to the ends of the twisted wires. Avoid tinning too far up the wires or the end
becomes brittle. Insert the tinned connection into the Cresnet connector and
tighten the retaining screw. Repeat the procedure for the other three conductors.
NOTE: For larger networks (i.e., freater than 28 network devices), it may
become necessary to add a Cresnet Hub/Repeater (CNXHUB) to maintain signal
quality throughout the network. Also, for networks with lengthy cable runs, it
may be necessary to add a Hub/Repeater after only 20 devices.
QM Network Wiring
For the QuickMedia transport, use CRESCAT-QM cable.
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).
NOTE: The QM-AE does not count as a midpoint device. It may be placed
anywhere in the QM network because it only taps the audio portion of the
signal. All video is passed through unaffected. Refer to the following diagram
when configuring a QM network.
QM Network Topology
NOTE: The QM-AE should always come before the QM-RX.
Crestron Toolbox
The Crestron Toolbox (replacement for Crestron Viewport, you may continue
use Viewport if desired) is a broad-based software package that accomplishes
multiple system tasks, primarily using an RS-232 or TCP/IP connection between
a PC and one or more Crestron control systems.
You can use the Crestron Toolbox to:
• Observe system processes.
• Upload operating systems and firmware.
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QuickMedia™ Audio Extractor Crestron QM-AE
• Upload programs and touchpanel projects.
• Set or change device Network IDs.
• Change serial numbers.
• Run scripts to automate tasks.
• Perform system diagnostics, and much more.
The Crestron Toolbox allows you to perform these functions using simple
graphical views and click and drag methods.
Identity Code
Every equipment and user interface within the network requires a unique
identity code (Net ID). These codes are two-digit hexadecimal numbers from 03
to FE. The Net ID of each unit must match an ID code specified in the SIMPL
Windows program. Refer to “Setting the Net ID in Device Settings” on page 21
for details of the SIMPL Windows procedure.
The Net ID of the QM-AE has been factory set to 21. The Net IDs of multiple
QM-AEs in the same system must be unique. Net IDs are changed from a
personal computer (PC) via the Crestron Toolbox.
NOTE: For detailed information on establishing communication between the
PC, control system, and the QM-AE, refer to “Communication Settings” on page
34. If communication cannot be established, refer to the “Troubleshooting
Communications” section in the latest version of the 2-Series Control System
Reference Guide (Doc. 6256), which is available from the Crestron website.
The Crestron Toolbox provides several methods to easily set or change device
Net IDs for any device on the network. The following method permits you to
change the Net ID of any device in the network through the “Network Device
Tree” window.
NOTE: This method prevents you from setting duplicate IDs.
This method permits you to manually set the Net ID for any device in the
network, can be used to set any known Net IDs that may require changing, and
may also be used for non-TSID equipment. This method will not permit you to
choose an ID already in use by another device. A warning message will appear
if you attempt to use an ID that is already in use.
Duplicate Net ID Warning Message
This method does not change the Net ID as assigned in SIMPL windows. Refer
to page 21 for the SIMPL Windows ID change procedure.
NOTE: You may also use SystemBuilder to perform Network ID setup. Refer
to page 18 for Net ID setup details using SystemBuilder.
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1. Ensure that all network devices are connected to the control system.
2. Open Crestron Toolbox and click Tools | Manage Address Book and
select or define the address entry for the control system.
Network Device Tree – Address Book
3. Once communication is established, select the Network Device Tree
icon, or select Tools | Network Device Tree.
4. Select the connection using the pull down list or click “Click here to
select connection…” to open the address book.
Network Device Tree – Pull Down Connection List
Select the connection (TCP or RS-232) and click OK. 4.
5. The Network Device Tree displays all devices on the current network.
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QuickMedia™ Audio Extractor Crestron QM-AE
Network Device Tree
6. Right-click on the device Net ID, and when the sub-menu appears,
select Change Network ID from the sub-menu.
Network Device Tree – Sub-Menu
Enter a new Net ID and press Enter. 7.
Enter New Net ID
Repeat this procedure for each additional network device requiring a Net ID
change.
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