Allied Telesis AT-BMGMT Guía de instalación descargar pdf (Pagina 31)

SwitchBlade x8112 Chassis Switch Installation Guide

Automatic MDIX

Detection

The 10/100/1000 Mbps twisted-pair ports on the AT-SBx81GT24 and AT-

SBx81GP24 Line Cards are IEEE 802.3ab compliant and feature

automatic MDIX detection when operating at 10 or 100 Mbps. (Automatic

MDIX detection does not apply to 1000 Mbps.) This feature automatically

configures the ports to MDI or MDI-X depending on the wiring

configurations of the end nodes.

Ports connected to network devices that do not support automatic MDIX

detection default to MDIX.

You may disable automatic MDIX detection on the individual ports and

configure the MDI/MDI-X settings manually with the POLARITY command.

Port Pinouts Refer to Table 34 on page 167 for the port pinouts of the twisted-pair ports

when they operate at 10 or 100 Mbps in the MDI configuration and

Table 35 on page 167 for the MDI-X configuration. For port pinouts when

the twisted-pair ports operate at 1000 Mbps, refer to Table 36 on

page 168.

Standard 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 Yes Yes Yes Yes Yes Yes

Standard TIA/EIA 568-

B-compliant Category 6

or 6a shielded cabling.

Yes Yes Yes Yes Yes Yes Yes Yes Yes

Table 2. Twisted Pair Cable for the AT-SBx81GP24 Line Card (Continued)

Cable Type

10Mbps 100Mbps 1000Mbps

Non-

PoE

PoE PoE+

Non-

PoE

PoE PoE+

Non-

PoE

PoE PoE+

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 ... 167 168

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Allied Telesis AT-BMGMT Guía de instalación Pagina 31