
~ 7 ~
NOTICE
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 or HDMI display EDID information.
3. All HDMI over CAT5 transmission distances are measured using Belden 1583A CAT5e
125MHz UTP cable and ASTRODESIGN Video Signal Generator VG-859C & VG-870B.
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 fixed length patch cords). Shielded STP cables
are better suited than unshielded UTP cables. A solid UTP Cat-5e cable shows longer
transmission range than 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-5/5e/6 cables is recommended for better
performance.
6. To reduce the interference among the unshielded twisted pairs of wires in Cat-5/5e/6 cable,
one can use shielded STP 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. The AV-GM07H3-S1 has been tested extensively and found that it doesn’t require external
power supply. If in rare situation you find it cannot work with the MA-5188, please use any
+5V power adapter to plug in the power jack and see if it can work. If not, please contact
your technical support for further service.
10.Additional IR remote controls and IR blaster cables can be purchased as optional
accessories to control the HDMI sources located separately.
Performance Guide for HDMI over Category Cable Transmission
Please use EIA/TIA-568-B termination (T568B) at any
time