Specifications

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)
QM
ASSIGNMENT:
RGB
QM ASSIGNMENT:
COMPOSITE, S-VIDEO,
COMPONENT AND
AUDIO
1 WHITE/ORANGE
- RGB RED
- CHROMINANCE (- P
r
)
2 ORANGE
+ RGB RED
+ CHROMINANCE (+ P
r
)
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 (- P
b
)
8 BROWN
+ RGB BLUE
+ COMPOSITE (+ P
b
)
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