Crestron QuickMedia QM-DA-2 Manual de usuario

Crestron QM-DA-2

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

Regulatory Compliance

Federal Communications Commission (FCC) Compliance Statement

This Class B digital apparatus complies with Canadian ICES-003.

Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.

Industry Canada (IC) Compliance Statement

This device complies with part 15 of the FCC rules. Operation is subject to the following 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.

CAUTION: Changes or modifications not expressly approved by the manufacturer responsible for compliance

could void the user’s authority to operate the equipment.

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device,

pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful

interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy

and if not installed and used in accordance with the instructions, may cause harmful interference to radio

communications. However, there is no guarantee that interference will not occur in a particular installation. If

this equipment does cause harmful interference to radio or television reception, which can be determined by

turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the

following measures:

Reorient or relocate the receiving antenna

Increase separation between the equipment and the receiver

Connect the equipment into an outlet on a circuit different from that to which the receiver is connected

Consult the dealer or an experienced radio/TV technician for help

As of the date of manufacture, the QM-DA-2 has been tested and found to comply with specifications for CE

marking and standards per EMC and Radiocommunications Compliance Labelling.

All brand names, product names and trademarks are the property of their respective owners.

Crestron QM-DA-2 QuickMedia™ Distribution Amplifier

Contents

QuickMedia™ Distribution Amplifier: QM-DA-2 1

Introduction ...............................................................................................................................1

Features and Functions................................................................................................1

Specifications ..............................................................................................................2

Physical Description....................................................................................................3

Setup ..........................................................................................................................................7

Network Wiring........................................................................................................... 7

QuickMedia Wiring..................................................................................................... 7

Hardware Hookup ....................................................................................................... 9

Problem Solving ......................................................................................................................11

Troubleshooting......................................................................................................... 11

Check Network Wiring..............................................................................................12

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. 6918A Contents •i

Crestron QM-DA-2 QuickMedia™ Distribution Amplifier

QuickMedia™ Distribution

Amplifier: QM-DA-2

Introduction

The QM-DA-2 is a QuickMedia™ (QM) distribution amplifier designed

to distribute a single QM signal to two QM receivers. All signal

distribution is provided over inexpensive CAT5e type cable via Crestron®

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.

Both QuickMedia ports on the bottom panel are accompanied by

Cresnet®ports with 24Volt DC power distribution built in to simplify

termination of the QuickMedia and Cresnet wiring.

Features and Functions

• 1 to 2 QuickMedia signal distribution amp

• Easy single cable connections

• No control or adjustments necessary

• Built-in Cresnet®distribution

Operations Guide – DOC. 6918A QuickMedia™ Distribution Amplifier: QM-DA-2 •1

QuickMedia™ Distribution Amplifier Crestron QM-DA-2

Specifications

Specifications for the QM-DA-2 are listed in the following table.

QM-DA-2 Specifications

SPECIFICATION DETAILS

Video/RGB

DA Distribution amplifier, distributes

QM video input signal to both

outputs

Gain 0 dB

Audio

DA Distribution amplifier, distributes

QM audio input signal to both

outputs

Gain 0 dB

Power

Cresnet Power Usage 6 Watts

(0.25 Amps @ 24 Volts DC)

Environmental

Temperature 41º to 104º F (5º to 40º C)

Humidity 10% to 90% RH (non-

condensing)

Heat Dissipation 20 BTU/Hr

Enclosure

Chassis Aluminum, with integral mounting

flanges

Mounting Freestanding, surface or rack rail

mount

Dimensions

Height 4.32 in (110 mm)

Width 4.56 in (116 mm)

Depth 1.43 in (37 mm)

Weight 11 oz (305 g)

2 •QuickMedia™ Distribution Amplifier: QM-DA-2 Operations Guide – DOC. 6918A

Crestron QM-DA-2 QuickMedia™ Distribution Amplifier

Physical Description

This section provides information on the connections, controls and

indicators available on your QM-DA-2.

QM-DA-2 Physical View

Operations Guide – DOC. 6918A QuickMedia™ Distribution Amplifier: QM-DA-2 •3

QuickMedia™ Distribution Amplifier Crestron QM-DA-2

QM-DA-2 Overall Dimensions (Top, Front and Bottom Views)

3.50 in

(89 mm)

4.00 in

(102 mm)

4.32 in

(110 mm)

2 3

4.56 in

(116 mm)

1.43 in

(37 mm)

1 1

4 •QuickMedia™ Distribution Amplifier: QM-DA-2 Operations Guide – DOC. 6918A

Crestron QM-DA-2 QuickMedia™ Distribution Amplifier

Connectors, Controls & Indicators

# CONNECTORS1,

CONTROLS &

INDICATORS

DESCRIPTION

1 NET2

(3) 4-pin 3.5 mm detachable

terminal blocks;

Connects to Cresnet control

network

24: Power (24 Volts DC)

Y: Data

Z: Data

G: Ground

2 QM IN3, 4, 5

(1) 8-wire RJ-45 female,

QuickMedia input port;

Connects to QM output port of

a QM-TX or other QuickMedia

device via CresCAT-QM or

CresCAT-IM cable

3 GROUND

(1) 6-32 screw, chassis ground

lug

4 PWR LED (1) Green LED, indicates 24

Volts DC power supplied from

Cresnet control network

5 QM OUT (1 - 2)3, 4, 5

(2) 8-wire RJ-45 female,

QuickMedia output ports;

Connect to QM input port of

any QuickMedia device via

CresCAT-QM or CresCAT-IM

cable

1. Interface connectors for NET ports are provided with the unit.

2. Do not connect 24 Volt power to more than one of the NET connectors on the

QM-DA-2.

Operations Guide – DOC. 6918A QuickMedia™ Distribution Amplifier: QM-DA-2 •5

QuickMedia™ Distribution Amplifier Crestron QM-DA-2

3. The eight-pin RJ-45 QuickMedia transport port accepts CAT5E/CAT6 carrying

audio, video and microphone signals. The QM ports conform to the 568B wiring

standard. Refer to the following table for connector pinouts.

RJ-45 PIN

NUMBER

WIRE COLORS

(EIA 568B)

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 BLUE + COMPOSITE (+ Pb)

4. To determine which is pin 1 on the cable, hold the cable so that the end of the

eight pin modular jack is facing away from you, with the clip down and the

copper side up. Pin 1 is on the far left.

5. 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.

6 •QuickMedia™ Distribution Amplifier: QM-DA-2 Operations Guide – DOC. 6918A

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