user manual

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Page 18
Chapter 5: Performance Notes
5. Performance Notes
1. When you adjust the signal level on the receiver, dial the rotary control switch
from 7 to 0 and stop turning the rotary switch whenever the audio/video is
playing normally. Inappropriately setting the signal level might damage the
extender.
2. If the DVI or HDMI device requires the EDID information, use the EDID reader/
writer to retrieve and provide DVI or HDMI display EDID information.
3. The transmission length is largely affected by the type of CAT5/5e/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 1000 ft. [300 m] bulk cables)
can transmit much longer signals than stranded UTP cables (usually in the
form of fixed length patch cords). Shielded STP cables are better suited than
unshielded UTP cables. A solid UTP CAT5e cable transmits farther than
stranded STP CAT6 cable. For long extension applications, use solid UTP/STP
cables.
4. We recommend using EIA/TIA-568-B termination (T568B) for CAT5/5e/6
cable.
5. To reduce the interference among the unshielded twisted pairs of wires in
CAT5/5e/6 cable, use shielded STP cables to improve EMI problems.
NOTE: EMI problems are more common in long transmission.
6. Because the quality of the CAT5/5e/6 cables has a major effect on how long
the transmission limit can be and how good the received picture quality is,
the actual transmission range depends on which CAT5/5e/6 cables you
choose. For desired resolutions greater than 1080i or 1280 x 1024, we
recommend using CAT6 cable.
7. If your HDMI display has multiple HDMI inputs, the first HDMI input [HDMI
input #1] generally can produce better transmission performance among all
HDMI inputs.
Table 5-1 on the next page describes HDMI performance over CAT5/CAT5e/
CAT6 cable.