Crestron QM-DA 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...
QuickMedia™ Distribution Amplifier Features and Functions 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 (Continued on following page) 2 • QuickMedia™ Distribution Amplifier: QM-DA •...
Crestron QM-DA QM-DA Specifications (Continued) Physical Description This section provides information on the connections, controls and indicators available on your QM-DA. QM-DA-4 Front View QM-DA-4 Rear View QM-DA-8 Front View QM-DA-8 Rear View NOTE: At the time of printing, photographs of the QM-DA-16 were not available. Operations Guide –...
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QuickMedia™ Distribution Amplifier QM-DA Overall Dimensions (Front View – QM-DA-8 Shown) 1.70 in (4.32 cm) QM-DA-4 & QM-DA-8 Overall Dimensions (Bottom View - QM-DA-8 Shown) 6.64 in (16.86 cm) QM-DA-16 Overall Dimensions (Bottom View) 10.14 in (25.75 cm) 4 • QuickMedia™ Distribution Amplifier: QM-DA Crestron QM-DA 19.01 in (48.29 cm)
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Crestron QM-DA QM-DA (Rear View – QM-DA-8 Shown) Connectors, Controls & Indicators 1. Interface connectors for 24 G (2-pin) and NET (4-pin) ports are provided with the unit. 2. The eight-pin RJ-45 QuickMedia transport port accepts CAT5E/CAT6 carrying audio, video and Operations Guide –...
QuickMedia™ Distribution Amplifier 3. To determine which is pin 1 on the cable, hold the cable so that the end of the eight pin modular jack 4. For QM wiring use CresCAT-QM, CresCAT-IM or quality CAT5e/CAT6 cable with a maximum 5.
Crestron QM-DA Setup Network Wiring When wiring the network, consider the following: For more details, refer to “Check Network Wiring” on page 13. QuickMedia Wiring The Crestron QuickMedia cable (sold under the name “CresCAT-QM”) contains one CAT5E cable and one Cresnet cable in Siamese jackets. Installation of any QM device is as simple as installing CresCAT-QM wires from the output of one device to the input of another.
QuickMedia™ Distribution Amplifier The aggregate cable length of a signal path originating at a QM transmitter 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.
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Crestron QM-DA WARNING: To prevent bodily injury when mounting or servicing this unit in a rack, take special precautions to ensure that the system remains stable. The following guidelines are provided to ensure your safety: NOTE: If rack mounting is not required, rubber feet are provided for tabletop mounting or stacking.
QuickMedia™ Distribution Amplifier Hardware Hookup Make the necessary connections as called out in the illustration that follows this paragraph. Refer to “Network Wiring” on page 7 before attaching the 4-position terminal block connector. Apply power after all connections have been made. When making connections to the QM-DA, use Crestron power supplies for Crestron equipment.
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Crestron QM-DA NOTE: For optimum performance, Crestron strongly recommends using CresCAT-QM cable, available from Crestron. Other high-quality/low skew CAT5e/CAT6 wiring may also be used with varying performance. NOTE: In the configuration shown, the C2N-SPWS300 can operate in the “PWR ON” position or the “PWR OFF SLAVE” position. For more information, refer to the latest revision of the C2N-SPWS300 System Power Supply Operations Guide (Doc.
QuickMedia™ Distribution Amplifier Problem Solving Troubleshooting The following table provides corrective action for possible trouble situations. If further assistance is required, please contact a Crestron customer service representative. QM-DA Troubleshooting 12 • QuickMedia™ Distribution Amplifier: QM-DA TROUBLE POSSIBLE CAUSE(S) Device does not Device is not receiving function.
Crestron QM-DA Check Network Wiring Use the Right Wire 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 because of using improper wire.
QuickMedia™ Distribution Amplifier Reference Documents The latest version of all documents mentioned within the guide can be obtained from the Crestron website (www.crestron.com/manuals). This link will provide a list of product manuals arranged in alphabetical order by model number. List of Related Reference Documents Further Inquiries If you cannot locate specific information or have questions after reviewing this guide, please take advantage of Crestron's award winning customer service team by...
Crestron QM-DA Return and Warranty Policies Merchandise Returns / Repair Service 1. No merchandise may be returned for credit, exchange or service without prior authorization from CRESTRON. To obtain warranty service for CRESTRON products, contact an authorized CRESTRON dealer. Only authorized CRESTRON dealers may contact the factory and request an RMA (Return Merchandise Authorization) number.
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Crestron Electronics, Inc. Operations Guide – DOC. 6547A 15 Volvo Drive Rockleigh, NJ 07647 (2018196) Tel: 888.CRESTRON 11.07 Fax: 201.767.7576 Specifications subject to www.crestron.com change without notice.
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