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 ..............................................................................................................
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.
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 for the QM-DA are listed in the following table.
Crestron QM-DA QuickMedia™ Distribution Amplifier QM-DA Specifications (Continued) SPECIFICATION DETAILS Enclosure Chassis Steel, black matte powder coat finish, convection cooled, vented top and sides Faceplate Extruded aluminum, black matte powder coat finish with polycarbonate label overlay Mounting Freestanding or 1U 19 inch rack mountable (adhesive feet and rack ears included) Dimensions Height 1.70 in (4.32 cm) Width 17.03 in (43.25 cm) without ears 19.01 in (48.
QuickMedia™ Distribution Amplifier Crestron QM-DA QM-DA Overall Dimensions (Front View – QM-DA-8 Shown) 1 19.01 in (48.29 cm) 1.70 in (4.32 cm) 17.03 in (43.25 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 Operations Guide – DOC.
Crestron QM-DA QuickMedia™ Distribution Amplifier QM-DA (Rear View – QM-DA-8 Shown) 2 3 4 3 5 6 Connectors, Controls & Indicators # CONNECTORS1, CONTROLS & INDICATORS 1 PWR LED Indicates 24 Volts DC power supplied from Cresnet control network. 2 QM IN2, 3 (1) 8-wire RJ-45 female and (1) 4-pin 3.5 mm detachable terminal block comprising (1) QuickMedia input port with Cresnet; Connects to Cresnet and QM output port of another QuickMedia device via CresCAT-QM cable.
QuickMedia™ Distribution Amplifier RJ-45 PIN NUMBER WIRE COLORS (EIA 568B) Crestron QM-DA QM ASSIGNMENT: RGB QM ASSIGNMENT: COMPOSITE, S-VIDEO, COMPONENT AND AUDIO 1 WHITE/ORANGE - RGB RED - CHROMINANCE (- Pr) 2 ORANGE + RGB RED + CHROMINANCE (+ Pr) 3 WHITE/GREEN - RGB GREEN - LUMINANCE (- Y) 4 BLUE + DIGITAL AUDIO + DIGITAL AUDIO 5 WHITE/BLUE - DIGITAL AUDIO - DIGITAL AUDIO 6 GREEN + RGB GREEN + LUMINANCE (+ Y) 7 WHITE/BROWN - RGB BLUE - COMPOSITE (- Pb) 8 BROWN + RGB BL
Crestron QM-DA QuickMedia™ Distribution Amplifier Setup Network Wiring When wiring the network, consider the following: • Use Crestron Certified Wire. • Use Crestron power supplies for Crestron equipment. • Provide sufficient power to the system. CAUTION: 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 (www.crestron.com/calculators).
QuickMedia™ Distribution Amplifier Crestron QM-DA 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.
Crestron QM-DA QuickMedia™ Distribution Amplifier 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: • When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the heaviest component at the bottom of the rack.
QuickMedia™ Distribution Amplifier Crestron QM-DA 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.
Crestron QM-DA QuickMedia™ Distribution Amplifier 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. 8190).
QuickMedia™ Distribution Amplifier Crestron QM-DA 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 TROUBLE Device does not function. POSSIBLE CAUSE(S) CORRECTIVE ACTION Device is not receiving power from a Crestron power source. Use the provided Crestron power source. Verify connections.
Crestron QM-DA QuickMedia™ Distribution Amplifier 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. Calculate Power CAUTION: Use only Crestron power supplies for Crestron equipment.
QuickMedia™ Distribution Amplifier Crestron QM-DA 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.
Crestron QM-DA QuickMedia™ Distribution Amplifier 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.
Crestron Electronics, Inc. 15 Volvo Drive Rockleigh, NJ 07647 Tel: 888.CRESTRON Fax: 201.767.7576 www.crestron.com Operations Guide – DOC. 6547A (2018196) 11.07 Specifications subject to change without notice.
