~ 10 ~
1.
When adjusting the signal level on the receiver unit, please dial the rotary control switch
from 7 to 0 and stop turning the rotary switch whenever the audio/video is playing normally.
Inappropriate signal level setting may cause overpowering issue that would shorten the
product life significantly!
2.
If the DVI or HDMI device requires the EDID information, please use EDID Reader/Writer to
retrieve and provide DVI/HDMI EDID information.
3.
All HDMI over CAT5 transmission distances are measured using Belden CAT5e 125MHz UTP
cable and ASTRODESIGN Video Signal Generator VG-859C.
4.
The transmission length is largely affected by the type of Cat-5/5e/6 cables, the type of
HDMI sources, and the type of HDMI display. The testing result shows solid UTP cables
(usually in the form of 300m [1,000ft] bulk cables) can transmit a lot longer signals than
stranded UTP cables (usually in the form of patch cords). A solid UTP Cat-5e cable shows
longer transmission range than a stranded STP Cat-6 cable. For long extension applications,
solid UTP/STP cables are the only viable choice.
5.
EIA/TIA-568-B termination (T568B) for CAT cables is recommended for better performance.
6.
To reduce the interference among the unshielded twisted pairs of wires in Cat-5/5e/6 cable,
shielded STP cables are better suited than unshielded UTP cables to improve EMI problems,
which is worsen in long transmission.
7.
Because the quality of the CAT5/6 cables has the major effect on how long the transmission
limit can achieve and how good is the received picture quality, the actual transmission range
is subject to one’s choice of Cat-5/5e/6 cables. For desired resolutions greater than 1080i or
1280x1024, a Cat-6 cable is recommended.
8.
If your HDMI display has multiple HDMI inputs, it is found that the first HDMI input [HDMI
input #1] generally can produce better transmission performance among all HDMI inputs.
9.
Wrongly insert IR blaster and IR receiver to wrong 3.5mm infrared sockets may result in the
failure of the IR extenders. Please check carefully before plugging in the IR extender to the
respective IR sockets.
Performance Guide for HDMI over CAT Transmission
Performance rating
Type of CAT cable
Wiring
Shielding
CAT5
CAT5e
CAT6
Solid
Unshielded (UTP)
Shielded (STP)
Stranded
Unshielded (UTP)
Shielded (STP)
Termination
Please use
EIA/TIA-568-B
termination (
T568B
) at any time
Notice
