Cable type, Auto-mdi/ mdi-x, Port pinouts – Allied Telesis x600-48Ts/XP User Manual

Page 24: Cable type auto-mdi/mdi-x port pinouts

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Chapter 1: Overview

24

Cable Type

The cabling requirements for a 10/100/1000Base-T port are:

ˆ

For 10 Mbps operation: Standard TIA/EIA 568-B-compliant Category 3
or better shielded or unshielded cabling with 100 ohm impedance and
have a frequency range that extends to 16 MHz.

ˆ

For 100 Mbps operation: 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 have a frequency
range that extends to 100 MHz.

ˆ

For 1000 Mbps operation: 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 have a
frequency range that extends to 100 MHz.

Auto-MDI/

MDI-X

The twisted pair ports on the switch are IEEE 802ab-compliant and feature
auto-MDI/MDI-X. This feature, available when a port’s speed and duplex
mode are set through Auto-Negotiation, automatically configures a switch
port to MDI or MDI-X depending on the wiring configuration of the port on
the end node. This allows you to connect any network device to a port on
the switch using a straight-through twisted pair cable.

Disabling Auto-Negotiation on a port and setting the speed and duplex
mode manually also disables the auto-MDI/MDI-X feature. A port where
Auto-Negotiation has been disabled defaults to MDI-X. Disabling Auto-
Negotiation may require manually configuring a port’s MDI/MDI-X setting
or using a crossover cable.

Port Pinouts

Refer to Table 12 on page 89 for the port pinouts when a twisted pair port
operates at 10 or 100 Mbps in the MDI configuration and Table 13 on
page 89 for th
e MDI-X configuration. For port pinouts when a twisted pair
port operates at 1000 Mbps, refer to Table 14 on page 90.

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