User guide

Specifications
MultiView™ II DVI-Tx Installation and User Guide 2
1.2 DDC/EDID Support
For best compatibility with source devices (eg, a PC), an extension device (DVI-Tx in this case) should provide
an appropriate DDC/EDID profile with the proper resolution and timing information to that source device. This
helps ensure best compatibility with display devices connected at the remote end.
The DVI-Tx is factory-programmed with a fixed EDID table. The supported video formats are detailed in
Appendix-A.
Unlike many other MultiView transmitter devices, it is not possible to “copy EDID data” from a display into the
DVI-Tx. This is not necessary because all the compatible digital video formats supported by the DVI-Tx are
already present in the factory-supplied EDID table.
1.3 Auxiliary Signal Support
The DVI-Tx is available in 2 factory-configured models, which allow different types of signals to be passed over
the 4
th
-pair on the CAT5 cable. These are configured differently by a front-panel setting, or may include an
internal hardware option-module.
 MVII-DVI-Tx-A/S:
o (-A) mode: Supports L+R summed audio (user-configuration setting).
o (-S) mode: Supports 2-wire RS-232 serial in simplex mode (user-configuration setting).
o SPDIF mode: Supports S/PDIF pass-through on the 4
th
-pair.
o HDMI/DVI de-embedding mode: Extracts 2CH-PCM digital audio and sends out a SPDIF
stream on the 4
th
pair.
 MVII-DVI-Tx-SAP:
o Supports 3-wire RS-232 serial (simplex or duplex), and true stereo audio.
o The serial feature is POLLABLE, so that multiple receivers on a daisy-chained link can be
addressed individually for display control or status-query.
o Contains the (SAP) option module.
The SAP option module is a factory-installed option. However, a field upgrade to the SAP version is possible. It
will require some minor technical skill to install the module. Please contact tech support for information and
assistance for these upgrades.
Note that for each DVI-Tx version above, the accompanying receiver device (DVI-Rx-1K, but also
AK600/AK1200DP receivers) must be similarly configured with regards to the 4
th
-pair settings. For more
specific information on MultiView™ receivers, please refer to the user-guide provided with your desired
receiver.
1.3.1 Auxiliary Signal support: (A/S) versions
The DVI-Tx models without any option module installed are capable of one of these auxiliary functions at a
time, selected by a user-configuration setting:
 (A) mode: Analog L+R summed audio.
 (S) mode: Simplex RS-232 support.
o Provides simplex (TX-only) serial data, even with daisy-chained receivers.
o Data is transmitted to all attached receivers. No data can ever be received.
o Receivers are not individually addressable.
o The RS-232 interface supports a 2-wire interface: TX/GND.
o Baud rates up to 115.2K is supported. No settings required.
o Transparent to format and protocol.
 SPDIF mode: Allows S/PDIF digital audio to pass through on the 4
th
-pair.
 De-embedded audio mode: The 2CH-PCM digital audio content from a HDMI/DVI video interface can
be extracted as a SPDIF digital audio stream, and sent to the 4
th
-pair signal pair.