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Notice
1. If the DVI or HDMI device requires the EDID information, please use EDID
Reader/Writer to retrieve and provide DVI/HDMI EDID information.
2. All HDMI over CAT5 transmission distances are measured using Belden 1583A CAT5e
125MHz solid LAN cable and ASTRODESIGN Video Signal Generator VG-859C.
3. The transmission length is largely affected by the type of LAN cables, the type of HDMI
sources, and the type of HDMI display. The testing result shows solid LAN cables
(usually in bulk cable 300m/1000ft form) can transmit a lot longer signals than
stranded LAN cables (usually in patch cord form). Shielded STP cables are better
suited than unshielded UTP cables. A solid UTP CAT5e cable shows longer
transmission range than stranded STP CAT6 cable. For long extension users, solid
LAN cables are the only viable choice.
4. EIA/TIA-568-B termination (T568B) for LAN cables is recommended for better
performance.
5. To reduce the interference among the unshielded twisted pairs of wires in LAN cable,
one can use shielded LAN cables to improve EMI problems, which is worsen in long
transmission.
6. Because the quality of the LAN 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 LAN 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 Guide for HDMI over LAN Cable Transmission
Performance rating
Type of LAN cable
Wiring
Shielding
CAT5
CAT5e
CAT6
Unshielded
(UTP)
Solid
Shielded (STP)
Unshielded
(UTP)
Stranded
Shielded (STP)
Termination
Please use
EIA/TIA-568-B
termination (
T568B
) at any time
