HDC-TH100WP User’s Guide
16
6.2 Cable
6.2.1 Twisted pair cable for extension
To ensure the best performance of twisted pair cables, select a correct twisted pair cable and connect it
correctly.
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Cat5e UTP/STP and Cat6 UTP/STP can be used, but we recommend CAT.5E HDC cable* for
optimal performance.
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If using an STP cable, connect the FG connector to a ground source. Otherwise, the shielding
feature does not work correctly. When using a UTP cable, we still recommend using the ground
connector.
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The shielded STP cables are less affected by interference or external noise than UTP cables.
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Connectors for long-haul extension are the same as that of eight-core modular connector used for
Ethernet, but the transmission system is not the same so that it cannot be connected to Ethernet.
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The maximum extension distance of a twisted pair cables is the shorter distance of the maximum
extension distances of transmitter/receiver/sink device connected to the HDC.
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Pin assignments: T568A or T568B straight
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Do not pull the cable hard. The allowable tension of the twisted pair cable is 110 N.
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Do not bend the connection cable at a sharp angle. Keep the bend radius four times of the cable
diameter or larger.
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Do not tie the cable tightly; leave a space allowing the cable to move slightly.
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If you use multiple twisted pair cables, we recommended keeping a distance between the cables or
not to place the cables closely in parallel.
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Keep the twisted pair cable as straight as you can. If you coil the cable, it is easily affected by
noise.
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Do not place the cable in an electrically noisy environment, since high-speed signals are
transmitted. Particularly when you use a high-output radio around the HDC, video or audio may be
interrupted.
・
If the total extension distance from the transmitter to receiver is 328 ft. (100 m) or less, up to two
cable joints can be used. Products supporting Cat6A (10GBase-T) are recommended. However,
the extension distance of high-resolution transmission, such as 4K, may be shortened about 10%.
・
Use AWG 24 or ticker cable for PoH.
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The table below shows supported extension distance for each twisted pair cable category. Note
that the distance may shorten depending on the actual environment.
