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724-746-5500 | blackbox.com
Page 7
Chapter 1: Specifications
• A specific DDC/EDID profile can be copied from a particular display and stored inside the transmitter’s internal non-volatile
memory. This method enables the best possible compatibility with a specific display that would otherwise not work properly if
simply using the factory-default DDC/EDID profile.
• Finally, the transmitter supports a “pass-through” mode, where the DDC/EDID profile of a locally attached display is passed
directly to the video source. This can be very helpful in diagnosing certain resolution or timing related display issues, but
generally is not used on a permanent basis (though it is safe to do so).
DDC/EDID Parameter:
Presented to the source whn using the transmitter:
Manufacturer name string
MRI
Monitor name string
Magic display
Established timings
640 x 480 @ 60 Hz, 800 x 600 @ 60 Hz, 1024 x 768 @ 60 Hz, 1280 x 1024 @ 60 Hz, 1360 x 768 @ 60 Hz,
1600 x 1200 @ 60 Hz, 1920 x 1080 @ 60 Hz, 1920 x 1200 @ 60 Hz
Detailed timings
1920 x 1080 @ 60 Hz, 1280 x 720 @ 60 Hz, 720 x 480 @ 60 Hz
CEA video formats
720 x 480p @ 59.94, 60 Hz, 4:3, 720 x 576p @ 50 Hz: 3
1280 x 720p @ 50 Hz @ 16:9
1280 x 720p @ 59.4, 60 Hz @ 16:9
1920 x 1080p @ 50 Hz @ 16:9
1920 x 1080p @ 59.94, 60 Hz @ 16:9
Specific timings
1280 x 720 @ 60 Hz, 720 x 480 @ 59.94 Hz, 1920 x 1200 @ 59.94 Hz
Table 1-1. DDC/EDID.
1.3 Auxiliary Signal Support
The transmitter design supports two types of auxiliary signals, preconfigured from the factory.
NOTE: Only one type of signal is supported at a time.
The CAT5 Multi VGA and Analog Audio Transmitter supports L+R summed audio.
It also supports the following serial signals:
• Provides simplex (TX-only) serial data, even with daisychained receivers.
• Data is transmitted to all attached receivers. No data can ever be received.
• Receivers are not individually addressable.
• RS-232 interface supports a 2-wire interface: TX/GND.
• Baud rates up to 115.2K are supported. No settings required.
• Transparent to format and protocol.
NOTE: For each transmitter configuration above, the accompanying receiver device must be similarly configured.
For more specific information on CAT5 Multi VGA and Analog Audio receivers, please refer to the user guide provided with your
receiver.
1.4 CAT5 Cable Compatibility
The CAT5 Multi VGA and Analog Audio Transmitter enables the highest quality video extension over common Category 5 (CAT5)
cable. In some applications, system design or environmental factors can require the use of CAT5e and CAT6 cabling (with and
without optional shielding). Each installation may have special requirements, and it is up to the system designer to determine the
most appropriate type of cable to deploy with CAT5 Multi VGA and Analog Audio Transmitter products.