Appendix A Connectors And Connection Media - Ruijie RG-S6910-3C Series Hardware Installation And Reference Manual

-
RG-SS6910 3C Series Switch Hardware Installation and Reference Guide

Appendix A Connectors and Connection Media

10GBASE-T/1000BASE-T/100BAS E-TX Port
10GBASE-T/1000BASE-T/100BASE-TX is a port that supports self-adaptation of three rates, and automatic MDI/MDIX
Crossover at these three rates.
10GBASE-T complies with IEEE 802.3an standard, and the supported cables and cabling distances are listed in the
following table. 10GBASE-Tport uses four pairs of wires for transmission, all of which must be connected. The following
table shows the connection of the twisted pairs used by the 10GBASE-T port.
Cable CAT7
Cat-7 shielded
Description
twist pairs
Class F
Model
ISO/IEC 11801
Max
Transmission 100 m
Distance
Cabling
System 600 MHz
Bandwidth
Meet the minimum performance requirements of 10GBASE-T
Description
standard.
The maximum transmission distance will be less than 37m when CAT6 UTP unshielded wire is exposed in severe
condition and influenced by external cross talk.
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.
Now that 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 started from the outlet end of the device, so it is suggested not to bind up the wires within the first 5
m-20 m.
3) Bind CAT6A unshielded wire every 50cm -70cm when the wires need to be bound. Bind CAT6 unshielded wire
every 160cm-180cm 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.
The 1000BASE-T complies with IEEE 802.3ab standard, and uses up to 100m of 100-ohm CAT5, CAT5E or twisted
pairs with higher standard. The 1000BASE-T port uses four pairs of wires for transmission, all of which must be
connected. Figure A-1 shows the connection of the twisted pairs used by the 1000BASE-T port:
STP CAT6A STP
Cat-6A shielded
twist pairs
Class E
ISO/IEC 11801 Ed2.1/TIA-568-C.2
100 m
500 MHz
Appendix A Connectors and Connection Media
CAT6A UTP CAT6
Cat-6A unshielded Cat-6 shielded
twist pairs twist pairs
Class E
ISO/IEC TR24750 TSB-155
100 m
250 MHz
Strictly follow TSB-155 standard
requirements to ensure the reliable
application of 10GBASE-T.
STP CAT6 UTP
Cat-6 unshielded
twist pairs
37 m to 55 m
- 41 -