Edid And Hot Plug Detection Control; Dual Network Switch Systems - Key Digital KD-IP922ENC Operating Instructions Manual

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EDID and Hot Plug Detection Control

EDID Control
EDID authentication is provided from the Encoder units to the connected input/source device.
The EDID file (AKA handshake) is selected using the EDID Control rotary and provides a list
of compatible video and audio formats as well as digital data informed the video source what
is should output. Most sources will comply with a new EDID file without a power-cycle, but
each source may behave differently.
Default EDID Control Table, selected via EDID Control rotary
Position EDID Description
0 Copy EDID from CAT5e/6 Output
1 1080i, 2CH AUDIO
2 1080i, DOLBY/DTS 5.1
3 1080i, HD AUDIO
4 1080p, 2CH AUDIO
5 1080p, DOLBY/DTS 5.1
6 1080p, HD AUDIO
7 4Kx2K@30, 2CH AUDIO
8 4Kx2K@30, DOLBY/DTS 5.1
9 4Kx2K@30, HD AUDIO
A 4Kx2K@60, 2CH AUDIO
B 4Kx2K@60, DOLBY/DTS 5.1
C 4Kx2K@60, HD AUDIO
1280x720p@60 DVI (no audio)
D
E 1920x1080@30 DVI (no audio)
F 3840x2160p@30 DVI (no audio)
Forced Hot Plug Detection
Hot Plug Detection (HPD) may be forced on the Encoder unit in order to provide connected
devices with necessary voltage to inform the device that a partner (ie display) is connected
and active. If the Forced HPD switch is set to OFF, HPD signals from the output to the input
device will pass as normal. In cases of many layers of connectivity, HPD may be lost leading
to no signal at the display. In those cases, fix the switch to Forced HPD ON.
EDID Control Rotary

Dual Network Switch Systems

You may utilize the dual LAN ports of KD-IP922ENC units to create an expanded system
using two network switches.
This presents a huge cost-savings as compared to systems requiring expensive custom and
card-slot based network switches.
To build an expanded system, connect each KD-IP922ENC LAN port to each network
switches.
There is no need to use the link ports on the network switch. The KD-IP922ENC will serve as
the network bridge between the two switches.
Remember that each encoder unit will occupy 2 total ports on your network switches. The
formula for calculating your possible Encoders and Decoders is:
(Encoders*2) + Decoders = Net Switch Ports
Example:
4 Encoders would allow for up to 88 Decoders if using two 48 port network switches.
(4*2) + 88 = 96
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