Crestron QM-MD4X2 Especificaciones descargar pdf (Pagina 15)

Crestron QM-MD4x2 QuickMedia Distribution System

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 QM transport mechanism (receiver) uses frequency compensation on each

twisted pair video input to maintain high resolutions (1600 x 1200) with CRESCAT-

QM cable (which contains both Cresnet and CAT5E wiring) and most good quality

CAT5E and CAT6 cables (where skew rating is ≤ 15 ns / 100 meters). The total

accumulated length of the cable determines the actual skew. For example, when

connecting the QM-WMC to a QM-MD4x2 and then to the QM-RMCRX, the total

accumulated skew must not exceed 15 ns and the total cable length cannot exceed

300 feet.

NOTE: The length of CAT5/5E/6 cable that can be used can vary. However, the

total skew must be ≤ 15 ns.

NOTE: Longer lengths of cable may experience eventual loss of bandwidth when

viewing higher resolution sources.

The following diagram illustrates how composite, S-video, and RGB video signals

are transmitted over the CAT5E wire.

Quick Media Video Signals on CAT5E

NOTE: When transmitting S-video or composite video, luminance uses the green

video pathway, chrominance uses the red video pathway, and composite uses the

blue video pathway.

Operations Guide - DOC. 6278 QuickMedia Distribution System: QM-MD4x2 • 11

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