AT-2973SX, AT-2973T, AT-2973T/4, and AT-VNC10S Adapters Installation and User’s Guide
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Reviewing Cabling Requirements
The cabling requirements for the twisted pair ports on the AT-2973T and
AT-2973T/4 adapters are listed in Table 6.
The cabling requirements for the fiber optic ports on the AT-2973SX
adapter are listed in Table 7.
For the latest fiber optic cable requirements for the SFP+ modules for the
AT-VNC10S adapter, contact your Allied Telesis sales representative.
Table 6. Cable Requirements for the AT-2973T and AT-2973T/4 Adapters
Speed Cable Type Maximum Distance
10 Mbps Standard TIA/EIA 568-
B-compliant Category 3
or higher shielded or
unshielded cabling with
100 ohm impedance
and a frequency of 16
MHz.
100 meters (328 feet)
100 Mbps Standard TIA/EIA 568-
B-compliant Category 3
or higher shielded or
unshielded cabling with
100 ohm impedance
and a frequency of 16
MHz.
100 meters (328 feet)
1000 Mbps Standard TIA/EIA 568-
A-compliant Category 5
or higher shielded or
unshielded cabling with
100 ohm impedance
and a frequency of 100
MHz.
100 meters (328 feet)
Table 7. Cable Requirements for the AT-2973SX Adapter
Cable Type Maximum Distance
62.5/125 µm (core/cladding)
multimode fiber optic cable
220 meters (722 feet)
50/125 µm (core/cladding)
multimode fiber optic cable
550 meters (1,804 feet)