User manual

15 / 15
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 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 suit
than unshielded UTP cables. A solid UTP CAT5e cable shows longer transmission
length than stranded STP CAT6 cable. For long extension users, solid LAN cables are
your only 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,
you 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 effects in how long transmission
distance will be made and how good is the received display, the actual transmission
length is subject to your LAN cables. For resolution greater than 1080i or 1280x1024,
a CAT6 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