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Chapter 1: Overview
36
Maximum
Distance
The ports have a maximum operating distance of 100 meters (328 feet).
Cable
Requirements
The cable requirements for the ports on the AT-SBx31GT24 and AT-
SBx31GT40 Line Cards are listed in Table 1.
Note
Patch cables for the AT-SBx31GT40 Line Card, in lengths of 1
meter and 3 meters with RJ point 5 and RJ-45 connectors, are
available from Allied Telesis. Contact your Allied Telesis sales
representative for information.
The cable requirements for the PoE ports on the AT-SBx31GP24 Ethernet
Line Card are given in Table 2 on page 37.
Table 1. Twisted Pair Cable for the AT-SBx31GT24 and AT-SBx31GT40
Line Cards
Cable Type 10Mbps 100Mbps 1000Mbps
Standard TIA/EIA 568-B-
compliant Category 3 shielded
or unshielded cabling with 100
ohm impedance and a
frequency of 16 MHz.
Yes Yes No
Standard TIA/EIA 568-A-
compliant Category 5 or TIA/
EIA 568-B-compliant Enhanced
Category 5 (Cat 5e) shielded or
unshielded cabling with 100
ohm impedance and a
frequency of 100 MHz.
Yes Yes Yes
Standard TIA/EIA 568-B-
compliant Category 6 or 6a
shielded cabling.
Yes Yes Yes