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Kramer Electronics

Kramer Electronics TP-125EDID Computer Graphics Video, Audio and RS-232 Over Twisted Pair Transmitter with EDID

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About the Kramer Electronics TP-125EDID

The Kramer Electronics TP-125EDID is a device for sending VGA computer video, stereo audio and RS-232 control signals over twisted pair cables such as CAT-5. The device also receives and stores EDID (Extended Display Identification Data) information from the connected display. The 15-pin VGA is capable of carrying very high resolutions of analog component RGBHV signals, but its transmission distance is limited. For sending VGA and associated audio and RS-232 signals across a facility, one excellent option is converting the signal for transmission over a CAT-5 cable. This enables the signal to travel distances in the hundreds of feet. The TP-125EDID is a PC / RS-232 / audio stereo line transmitter that receives from a computer source an RGBHV video signal and an unbalanced stereo analog audio signal and transmits them over twisted pair cable to, for instance, a Kramer TP-126 receiver.

The transmitter converts the unbalanced audio signal to a digital audio (S/PDIF) stream before transmitting in order to preserve the quality of the signal. The receiver converts the video signal back to VGA and the audio to unbalanced stereo audio, while also preserving S/PDIF for output. The transmitter features a RS-232 port to receive commands from the connected computer and pass them along to a device that's controllable via RS-232, such as a switcher. With the TP-125EDID, RS-232 control is bi-directional, so commands and data can flow in both directions via the interface. This allows for status requests to be sent to the display system and a response to be received. RS-232 also enables control of a compatible destination display.

When the TP-125EDID is connected to a display device and the EDID CAPTURE button is pressed, the transmitter reads and stores the EDID from the display device. Thereby, the display can be disconnected and later reconnected without rebooting the operating system.

Kramer Electronics TP-125EDID Includes

  • Kramer Electronics TP-125EDID Video and Audio Transmitter
  • Power Adapter (12V DC Input)
  • User Manual
  • Kramer Electronics Warranty

Kramer Electronics TP-125EDID Features

  • Supports resolutions up to and including WUXGA (1920 x 1200)
  • HDTV compatibility, including 1080p
  • Transmission range more than 300 ft (100 m)
  • Includes H and V Sync internal polarity switches
  • Power Connect feature allows both the transmitter and a receiver to be powered from one 12V DC power source when the devices are within 150 ft (50 m) of each other, as long as the cable can carry power
  • Three similar-sized units can be rack mounted side-by-side in a 1U rack space, using an optional RK-3T adapter

Kramer Electronics TP-125EDID Specifications

Inputs 1 WUXGA on a 15-pin HD connector
1 audio ANALOG 3.5mm mini jack
Output 1 RJ-45 OUT connector
Control RS-232 2-pin terminal block
Rs-232 Baud Rate Up to 19200kbps
Rs-232 Mode Full-duplex
Audio Bandwidth (-3db) 20Hz to 20kHz @0.5dB
Resolution Up to WUXGA and 1080p
S/N Ratio Video: 58dB unweighted, 68.3dB @5MHz weighted
Audio: <-80dB
Total Gain Audio: Analog/analog: 0dB
Analog/SPDIF: -12dBFS
Coupling AC
THD+N Audio: <0.01%
Power Source 12V DC, 60mA
Dimensions (W x D x H) 12.1cm x 7.18cm x 2.42cm (4.76" x 2.83" x 0.95")
Weight 0.3kg (0.67lbs) approx
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