Planet Networking & Communication IHD-210PR User Manual page 7

High Definition HDMI Extender over IP with PoE
IHD-210PT / IHD-210PR
Exclusive Video Transmission by IGMP Snooping Technology
One IHD-210PT in local site can drive multiple IHD-210PRs in remote sites without consuming extra
network loading. When connected to PoE switch with IGMP snooping function, the IHD-210 series
can offer selectable 64 channels, so video and audio can be transmitted simultaneously. IGMP
snooping 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 snooping can be
used for one-to-many/many-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-210 series adopts Automatic EDID (Extended Display Identification Data) Copy function to
make smooth video distribution over different types of display units. EDID is greatly important as it
contains information about resources' manufacturer names, serial numbers, product types, maximum
image sizes, 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 manufacturers. Therefore,
with Automatic EDID Copy function, the IHD-210 series allows the system to copy EDID information
from EDID compliant displays and assures accurate display performance.
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