Accton Technology ES2027 CheetahSwitch Workgroup-2027, Port and Cable Assignments, Crossover

CheetahSwitch Workgroup-2027

Port and Cable Assignments

RJ-45 Port Description

RJ-45 station ports (MDI-X) can be attached to any

devices which use a standard network interface (e.g., a workstation, server, bridge or router). Similar networking devices (e.g., another switch or hub) can be cascaded by connecting any of the RJ-45 station ports on the switch to a daisy-chain port (MDI) on the other device. Use unshielded twisted-pair (UTP) or shielded twisted-pair (STP) cable for RJ-45 connections: 100W Category 3, 4 or 5 cable for 10 Mbps connections or 100W Category 5 cable for 100 Mbps connections. Also be sure that the length of any twisted-pair connection does not exceed 100 meters (328 feet).

Pin	Assignment	Assignment (Daisy-Chain
	(Station Ports 1 - 24)	Port, other device)
1	Input Receive Data +	Output Transmit Data +
2	Input Receive Data -	Output Transmit Data -
3	Output Transmit Data +	Input Receive Data +
6	Output Transmit Data -	Input Receive Data -
4,5,7,8	Not Used	Not Used

Schematics for both straight and crossover twisted-pair cable are shown below.

	Straight-Through					Crossover
(Switch)		(Adapter)		(Switch)		(Switch)
1	IRD+	1	OTD+	1	IRD+	1	IRD+
2	IRD-	2	OTD-	2	IRD-	2	IRD-
3	OTD+	3	IRD+	3	OTD+	3	OTD+
6	OTD-	6	IRD-	6	OTD-	6	OTD-

AUI Port Description
The AUI Port provides a media independent interface that can	Pin	Assignment
be attached to a thin Ethernet backbone (10BASE2), a thick	1	Collision In Shield
Ethernet backbone (10BASE5), or to remote device using fiber	2	Collision In +
	3	Data Out +
optic cable (10BASE-F). Note that when using this port, you
	4	Data In Shield
must first attach a transceiver (MAU) designed to interface
	5	Data In +
with the selected media type, and then attach the cable to the
	6	DC Power Common
transceiver.
	9	Collision In -
	10	Data Out -
	11	Data Out Shield
	12	Data In -
	13	DC Power +
	14	Power Shield
	7, 8 ,15	No Connection

EMI Certification

FCC Class A (USA)

Warning: This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause interference to radio communications. It has been tested and found to comply with the limits for a Class A digital device pursuant to Subpart B of Part 15 of FCC Rules, which are designed to provide reasonable protection against such interference when operated in a commercial environment. Operation of this equipment in a residential area is likely to cause interference, in which case the user, at his own expense, will be required to take whatever measures are required to correct the interference.

Quick Installation Guide

You may use unshielded twisted-pair (UTP) for RJ-45 connections - Category 3 or greater for 10 Mbps connections, and Category 5 for 100 Mbps connections.

Class A (Canada Department of Communications)

This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus as set out in the interference-causing equipment standard entitled "Digital Apparatus", ICES-003 of the Department of Communications.

Cet appareil numérique respecte les limites de bruits radioélectriques applicables aux appareils numériques de Classe A prescrites dans la norme sur le matériel brouilleur: "Appareils Numérques", NMB-003 édictée par le ministère des Communications.

VCCI Class A Compliance (Japan)

CE Mark Declaration of Conformance for EMI and Safety (EEC)

This is to certify that this product complies with ISO/IEC Guide 22 and EN45014. It conforms to the following specifications:

EMC: EN55022(1988)/CISPR-22(1985)	class A
EN60555-2(1995)	class A
EN60555-3
IEC1000-4-2(1995)	4kV CD, 8kV AD
IEC1000-4-3(1995)	3V/m
IEC1000-4-4(1995)	1kV - (power line), 0.5kV - (signal line)
IEC 1000-4-6(1995)	3Vrms

This product complies with the requirements of the Low Voltage Directive 73/23/EEC and the EMC Directive 89/336/EEC.

Warning! Do not plug a phone jack connector in the RJ-45 port. This may damage this device. Les raccordeurs ne sont pas utilisé pour le système téléphonique!

Safety Compliance

Underwriters Laboratories Inc. (USA)

Important! Before making connections, make sure you have the correct Cord Set. Check it (read the label on the cable) against the following specification list.

Voltage	Cord Set Specifications
120 Volts	UL Listed/CSA Certified Cord Set
	Minimum 18 AWG; type SVT or SJT three conductor cord
	Maximum length of 15 feet
	Parallel blade, grounding type attachment plug rated 15A, 125V
240 Volts	UL Listed/CSA Certified Cord Set
(North America)	Minimum 18 AWG; type SVT or SJT three conductor cord
	Maximum length of 15 feet
	Tandem blade, grounding type attachment plug rated 15A, 125V
240 Volts	Cord Set with H05VV-F cord having three conductors with
(Europe only)	minimum diameter of 0.75 mm²
	IEC-320 receptacle; male plug rated 10A, 250V

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