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Фрагмент инструкции
About the DVI 201 Transmitters and Receivers The Extron DVI 201 is a family of DVI transmitters and receivers, in enclosures that support different mounting options. A transmitter and receiver pair extends the usable distance of DVI digital video and RS-232 control signals over two Category (CAT) 5/5e/6 unshielded twisted pair (UTP) or shielded twisted pair (STP) cables. The DVI 201 A D transmitter and receiver also route audio, but not on the TP link. The video and control (and audio, if applicable) signals can be transmitted up to 200' (60 m). DVI 200 TX SERIES LOCAL OUTPUT DV INPUT Multimedia PC ProjectorExtronDVI 201 TxTransmitterExtronDVI 201 RxReceiverDVI Cable DVI 200RS-232 PASS THRU Tx Rx RS-232ControlCAT 5/5e/6/7 UTP up to 200’ RS-232 Figure 1-1 — Typical transmitter and receiver application A DVI 201 system consists of a transmitter (Tx) and a receiver (Rx). The pair can handle a single link of DVI-D digital video and a bi-directional RS-232 link. The DVI 201 A D also converts a computer audio input into balanced or unbalanced stereo audio output. There are two subsets of transmitters and receivers in two different enclosures or form factors: • DVI 201 Tx/Rx — These units are housed in quarter rack width metal enclosures. They can be set on a tabletop or mounted in a rack, under or through furniture, or to a projector pole. The transmitter in this form factor has a local monitor output. N The non-Decora® models do not input, transmit, receive, or output audio. • DVI 201 A D Tx/Rx — These units are housed in enclosures that can be mounted in UL standard wall boxes with Decora-style face plates. These units also convert computer level audio to balanced or unbalanced stereo audio. N • A non-Decora transmitter or receiver is partially compatible with a Decora receiver or transmitter. • A mixed form factor system can transmit and receive video and RS-232 communications. • A mixed form factor system cannot handle audio, as the non-Decora models do not input, transmit, receive, or output audio. DVI 201 Txnon-DecoraTransmittersTransmittersReceiversReceiversDVI 201 Txnon-DecoraDVI videoControlDVI videoControlDVI 201 A D Txnon-DecoraDVI 201 Rxnon-DecoraDVI 201 A D Rxnon-DecoraDVI 201 A D TxDecoraDVI 201 Rxnon-DecoraDVI 201 A D RxDecoraDVI videoControlDVI videoControlAudio (pass) DVI videoControlDVI videoControlDVI videoControlDVI videoControlAudio (pass) The units can be purchased as a pair (of the same form factor) or individually. Each purchased pair and each individual transmitter is shipped with a single external desktop 12 VDC power supply that accepts 100 to 240 VAC, 50 Hz or 60 Hz input. A single power supply connected to either the transmitter or the receiver can power both units through one of the TP cables that link the units. Introduction, cont’d DVI 201 Tx/Rx • Introduction 1-5 1-4 DVI 201 Tx/Rx • Introduction N In this manual, the terms "DVI 201," "DVI 201 Tx," "DVI 201 Rx," "transmitter," and "receiver" refer to the applicable unit(s) in either form factor, unless otherwise specified. TP cable advantages Twisted pair cable is much smaller, lighter, more flexible, and less expensive than coaxial or DVI cable. These transmitter and receiver twisted pair (TP) products make cable runs simpler and less cumbersome. Termination of the cable with RJ-45 connectors is simple, quick, and economical. N The transmitter and receiver pair works with unshielded twisted pair (UTP) or shielded twisted pair (STP) cables; but, to ensure FCC Class A and CE compliance, STP cables are recommended. N Do not use Extron’s UTP23SF-4 Enhanced Skew- Free™ A/V UTP cable to link the transmitter and receiver. Skew-free A/V cable was designed for most Extron TP transmitter/receiver applications, but the DVI 201 Tx/Rx does not work properly with this cable. Control communications The RS-232 and/or infrared (IR) communications are via a passive pass-through only; the transmitter and receiver do not generate or respond to these signals. Transmission distance The maximum transmission distance is determined by the resolution of the signal and the TP cable that is used. With CAT 5/5e/6/7 UTP cable, the Tx/Rx pair can transmit and receive 720p and 1080i HDTV or XGA video signals up to 200' (60 m) and 1080p HDTV or UXGA video up to 100' (30 m). With CAT 5/5e/6/7 STP cable, the Tx/Rx pair can transmit and receive 720p and 1080i HDTV or XGA video signals up to 200' (60 m) and 1080p HDTV or UXGA video up to 125' (38 m). N The transmission distance varies greatly, depending on the signal resolution, type of cable used, graphics card, and display used in the system. Features Transmits single link DVI-D signals over two CAT 5/5e/6 cables — Standard twisted pair cables provide an economical, easily installed cable solution. Long distance transmission — CAT 5/5e/6/7 UTP cable — Accommodates 720p and 1080i HDTV or XGA video over 200' (60 m), and 1080p HDTV or UXGA (1600 x 1200) over 100' (30 m). CAT 5/5e/6/7 STP cable — Accommodates 720p and ...
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