Atlona AT HD14SS - Manual (Page 9)

7
NOTICE
PERFORMANCE GUIDE
1. If the DVI or HDMI device requires the EDID information, please use EDID Reader/Writer to
retrieve and provide EDID information of the DVI or HDMI display or AV receiver.
2. All HDMI over CAT5 transmission distances are measured using Belden CAT5e 125MHz
UTP cable and ASTRODESIGN Video Signal Generator VG-859C.
3. 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 or 1,000ft bulk cables) can transmit a lot longer signals than stranded UTP
cables (usually in the form of fixed length 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.
4. EIA/TIA-568-B termination (T568B) for Cat-5/5e/6 cables is recommended for better
performance.
5. 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.
6. Because the quality of the CAT-5/6 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.
7. 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.
Performance rating Type of CAT5/6 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