Dwin TransVision 4, Руководство пользователя

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For floor-mounted installations the picture offset is the distance between
the mounting surface of the projector and the bottom of the picture. In order
to deliver pictures that are free of keystone distortion, be certain to calculate
the offset distance before ordering screens and/or cabinetry. Although some
adjustment range is available in floor mounted systems by using the adjust-
able feet.
(2) PREPARING FOR CEILING MOUNT INSTALLATION
2A. Cable Installation
The TransVision
™
4 digital video processor sends a high definition video signal
via a DWIN-proprietary DVI-D cable. For easy installation in walls, the cable
has a ¾” inch round connector that connects to the front (lens side) of the
projector.
DVI cables (with the ¾” round connector) are available from DWIN in lengths
of 25-feet to 50-feet in five-foot increments. A separately sold DVI Cable Ex-
tender box is also available to support cable runs of up to 100-feet.
In new home theater construction, many installers choose to install the
DWIN DVI cable during the pre-wiring phase when beams and crawl spaces
are readily accessible. Cables can be ordered several months in advance for
this purpose.
NOTE: The DWIN DVI cable must be used to connect the projector and the
video processor.
DWIN STRONGLY RECOMMENDS TO RUN THE DVI CABLES
THROUGH A 1-INCH OR LARGER DIAMETER CONDUIT. A CONVENTIONAL
DVD-D CABLE WILL NOT WORK
. FURTHER, DUE TO SIGNAL-DEGRADA-
TION ISSUES, A CONVENTIONAL ‘GENDER CHANGER’ ADAPTOR IS NOT
RECOMMENDED.
Do not coil, tightly bend or crimp the DVI cable; it may damage or short
the wires and compromise the shielding. Do not straddle staple the DVI cable.
Doing so may puncture the cable, damaging or shorting the wires and com-
promise the shielding.
During installation inside walls, care should be taken to avoid excessive
strain which may damage to internal cable wires. When the DVI cable is being
“pulled” or “snaked” DWIN recommends that the snake be connected as far
down the length of the DVI cable as possible to prevent stretching damage to
the cable or the connector.
Further, the DVI-D connector is extremely delicate. Care should be taken to
avoid dropping the connector on hard surfaces to avoid damage.
To prevent interference, DWIN strongly recommends that the DVI cable not
be run in close proximity or tied to any AC power lines! DWIN strongly recom-
mends that the DVI cable be run through a dedicated (DVI cable only) conduit
that meets NEC or local electrical code requirements.