Hardware Installation and Reference Guide Appendix
44
It is recommended to use CAT6A shielded wire or wires with higher specifications for the cabling of the new
equipment room. CAT6A or CAT7 shielded wire can maximize the avoidance of external crosstalks. Note the
cabling system and the overall grounding when shielded wire is used.
If CAT6A unshielded wire or CAT6 wire is applied in the cabling of the equipment room, the cabling must meet
TSB-155 requirements. And the recommended cabling rules are as follows:
(1) Avoid mixed cabling with other cables, or use metal clapboard in the trunking to isolate different wires.
(2) At the outlet end of the device, place the wire separately and ensure parallel cabling. Most of the crosstalks
happen within the 20 m (65.62 ft) started from the outlet end of the device, so it is suggested not to bind up the
wires within the first 5 m (16.40 ft) to 20 m (65.62 ft).
(3) Bind CAT6A unshielded wire every 50cm (19.69 in.) to 70cm (27.56 in.) when the wires need to be bound.
Bind CAT6 unshielded wire every 160cm (62.99 in.) to 180cm (70.87 in.) as loosely as possible.
(4) The suggested number of wires in a bundle is not more than 12.
(5) CAT6 wire connector is replaced with CAT6A wire connector.
5GBASE-T
Compliant with IEEE 802.3bz, 5GBASE-T requires CAT6 100-ohm UTP or STP (STP is recommended) with a
maximum distance of 100 m (328.08 ft).
Note
If CASE wire is applied in the cabling of the equipment room, 5GBASE-T is not suggested.
5GBASE-T is applied to transmit CAT6 UTP. The maximum transmission distance will be less than 20 m (65.62
ft) when CAT6 UTP unshielded wire is exposed in severe condition and influenced by external crosstalk.
If CAT6UTP wire is applied in the cabling of the equipment room, the cabling must meet TIA TSB-5021
requirements. And the recommended cabling rules are as follows:
(1) Avoid mixed cabling with other cables, or use metal clapboard in the trunking to isolate different wires.
(2) The CAT6 UTP cabling whose binding length is within 20 m (65.62 ft) can meet the minimum performance
requirements of 5GBASE-T standard.
(3) At the outlet end of the device, place the wire separately and ensure parallel cabling. Most of the crosstalks
happen within the 25 m (82.02 ft) started from the outlet end of the device, so it is suggested not to bind up the
wires within the first 25 m (82.02 ft).
(4) When the wires need to be bound, bind CAT6 unshielded wire every 160cm to 180cm (62.99 in. to 70.87 in.)
as loosely as possible.
(5) The suggested number of wires in a bundle is not more than 7.
(6) CAT6 wire connector is replaced with CAT6A wire connector.
2.5GBASE-T
Compliant with IEEE 802.3bz, 2.5GBASE-T requires CAT5e 100-ohm UTP or STP (STP is recommended) with
a maximum distance of 100 meters (328.08 ft).
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