HDMI / Video Wall over IP
IHD-200 Series
6
Exclusive Video Transmission by IGMP Multicast Technology
One IHD-200T in local site can drive multiple IHD-200R in remote sites without
consuming extra network loading. Integrating with Gigabit Switch built-in with IGMP
multicast functions, there are 16 channels selectable via the IHD-200 series and up
to 4 channels can be transmitted simultaneously. IGMP is an integral part of IP
multicast and a communications protocol used by hosts and adjacent routers on IP
networks to establish multicast group memberships. IGMP can be used for one-to-
many networking applications such as online streaming video and gaming, and
allows exclusive transmission and more efficient use of resources.
Extended Display Identification Data (EDID) Support
The IHD-200 series adopts EDID (Extended Display Identification Data) COPY
function to make smooth video distribution over different types of display unit. EDID
is greatly important as it contains information about resources’ manufacturer name,
serial number, product type, maximum image size, color characteristics, factory pre-
set timings, frequency range limits, etc. In some cases, display problems may occur
due to incorrect EDID communication between the display monitor and the
transmitting unit or inappropriate EDID data programmed by display manufactures.
Therefore, with EDID COPY function, the IHD-200 series allows the system to copy
EDID information from EDID compliant displays and assures accurate display
performance
.
However, owing to a variety of monitor model types, EDID data may not be usable to
all. For example, if you use an HDMI-to-DVI converter to a REAL DVI monitor, the
copied EDID (DVI) data may NOT be applicable to HDMI monitors. On the other
hand, if using an HDMI-to-DVI converter to a DVI monitor (but in fact it’s an HDMI
monitor with DVI connector), the copied EDID (HDMI) data may be applicable to
HDMI monitors
