Chapter 6 Connect To A Presentation System; Concepts; Understand S-Video Limitations; Understand How Hdmi And Dvi Differ - Cisco DMS-DMP-4300G User Manual

Concepts

Understand S-Video Limitations

When you use an S-Video cable to pass High Definition video signals to a DMP, the picture quality is
not High Definition. This happens because the S-Video standard is engineered to pass analog video
signals in Standard Definition.
When you will use an S-Video signal cable, we recommend a maximum resolution of 728 x 576 @ 25Hz
and a maximum cable length of 10 feet (approximately 3 meters).

Understand How HDMI and DVI Differ

With most modern, digital presentation systems, you can use an HDMI cable for both video and audio.
Other such systems might not connect until you combine the HDMI cable with an HDMI-to-DVI adapter
for video. However, DVI does not support the transmission of audio signals. In this case, you can use the
provided audio cable for audio.
DMP 4310G Notice Regarding HDMI/DVI Effects on Autodetection
A corner case exists that is mildly disruptive. It is not likely to affect your organization. To understand
this corner case, assume that all of the following statements are true simultaneously.
•
•
•
•
In this case, your DMP 4310G proceeds as if the native resolution is low, to ensure that your digital sign
shows anything at all.
Tip
This constraint does not affect a DMP 4305G or a DMP 4400G. These models do not use the same
microprocessor that a DMP 4310G uses.
To work around this behavior, disable the autodetect feature in DMPDM and then choose the actual
resolution manually.
User Guide for Cisco Digital Media Player Device Manager 5.2.x
6-2
Your DMP model is 4310G.
Your presentation system's media signal interface is DVI, not HDMI.
EDID data in the firmware for your presentation system misrepresents its native resolution.
The falsely claimed resolution is an HDMI standard instead of a VESA standard.
Chapter 6 Connect to a Presentation System
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