Allied Telesis AT-GS900/8PS manual Twisted Pair Ports, MDI/MDI-X Mode

Page 19

AT-GS900/8PS Switch Installation Guide

Twisted Pair Ports

Cable Specifications

MDI/MDI-X Mode

The AT-GS900/8PS Gigabit Ethernet Switch features 8 twisted pair ports, respectively, that are 10Base-T, 100Base-TX, and 1000Base-T compliant. The port speeds and duplex modes are determined automatically with IEEE 802.3u Auto-Negotiation. The ports have a maximum operating distance of 100 m (328 feet).

The twisted pair ports feature 8-pin RJ-45 connectors. For the port pinouts, refer to “Connectors and Port Pinouts” on page 55.

The cable requirements for the ports on the AT-GS900/8PS are listed in Table 1.

Table 1. Twisted Pair Cable Specifications for the AT-GS900/8PS

Cable Type

10Mbps

100Mbps

1000Mbps

 

 

 

 

 

 

 

 

Standard TIA/EIA 568-B-

Yes

Yes

No

compliant Category 3 shielded

 

 

 

or unshielded cabling with 100

 

 

 

ohm impedance and a

 

 

 

frequency of 16 MHz.

 

 

 

 

 

 

 

Standard TIA/EIA 568-A-

Yes

Yes

Yes

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.

 

 

 

 

 

 

 

Standard TIA/EIA 568-B-

Yes

Yes

Yes

compliant Category 6 or 6a

 

 

 

shielded cabling.

 

 

 

 

 

 

 

Note

The twisted pair ports on the switch feature auto-MDI when operating at 10, 100, or 1000 Mbps. A port is configured as MDI or MDI-X when it is connected to an end-node. Consequently, you can use a straight-through or cross-over twisted pair cable when connecting any type of network device to a port on the switch.

The ports feature auto-MDI, which automatically configures the ports as MDI or MDI-X. This feature allows you to use straight-through or cross- over twisted pair cables when connecting to the end-nodes.

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Contents AT-GS900/8PS Installation Guide Copyright 2012 Allied Telesis, Inc Electrical Safety and Emissions Standards Translated Safety Statements Contents Page Figures Figures Tables Tables Preface Symbol Conventions Contacting Allied Telesis Preface Chapter OverviewLEDs PoE Ports SFP Slots FeaturesPower over Ethernet Back Panel Front and Back PanelsTwisted Pair Ports MDI/MDI-X ModeAuto-Negotiation Mode Flow Control and Back Pressure SFP Port Description LEDsTotal PoE delivered power is between 70 W Describes the LEDs for the SFP slots SFP Slot LEDs Power Over Ethernet PoE Power Budget PoE Guard Band Overview Wiring Implementation Power Supply Installation Reviewing Safety Precautions AT-GS900/8PS Switch Installation Guide Selecting a Site for the Switch Unpacking the Switch AT-GS900/8PS Switch Items Installing the Switch on a Desktop Installing the Switch in an Equipment Rack AT-GS900/8PS Switch Installation Guide Installing the Switch on a Wall AT-GS900/8PS Switch Installation Guide Installation Installing Optional SFP Transceiver Installation Cabling the Switch Powering On the Switch Power LED OFF TroubleshootingTwisted Pair Port LINK/ACT LED Off SFP Port LINK/ACT LED Off LINK/ACT LED Intermittently Blinking Slow Network PerformancePowered Device Not Receiving Power Resetting Blinking PoE Port LED Troubleshooting Power Specifications Technical SpecificationsPhysical Specifications Environmental SpecificationsSafety and Electromagnetic Emissions Certifications PoE SpecificationsPin Signal Connectors and Port PinoutsPin Pair Signal