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USB X-TENDER
Appendix B:
Extension-Cable Requirements
The extension cabling that you’ll use to interconnect
the USB X-Tender’s Host-Interface and Device-Interface
Modules must be Category 5 solid-core twisted-pair
cable, pinned and paired according to TIA-568A or
(preferably) -568B, terminated with standard RJ-45
plugs. To maintain compliance with FCC Part 15 Class B
regulations, this cable should be
shielded
. Unshielded
twisted-pair cabling will work, but should only be
considered for commercial environments where
interference is less likely to be a problem.
If you’re using both of the USB X-Tender’s channels,
you’ll need all four pairs of wires in a run of 4-pair cable.
If you’re only using channel 1, you’ll be able to use
2-pair cable, or just pairs 1 and 2 of a run of 4-pair cable.
(Pairs 1 and 2 correspond to pins 1, 2, 3, and 6. These
are the same pins that 10BASE-T uses, so you can use
10BASE-T cable for this purpose. However, under
no
circumstances
should you ever connect the USB X-Tender
to any 10BASE-T equipment! This could damage the
X-Tender, the attached USB equipment, and your
10BASE-T network!)
