Accton Technology EH2045S Hub’s RJ-45 Pin Assignments, Straight-Through, Crossover, Adapter

EtherHub-5st User’s Guide

Hub’s RJ-45 Pin Assignments

Pin

1

2

3

6

4,5,7,8

MDI-X Assignment

(port 1~5)

Input Receive Data +

Input Receive Data -

Output transmit Data +

Output transmit Data -

Not Used

MDI-Assignment

(Daisy-Chain Port)

Output transmit Data +

Output transmit Data -

Input Receive Data +

Input Receive Data -

Not Used

Schematics for both straight and crossover twisted-pair cable are shown below. (Note that crossover cable is only required if you cascade hubs via the RJ-45 station ports; i.e., the 5MDI Daisy-Chain port is not used.)

	Straight-Through					Crossover
	(Hub)	(Adapter)		(Hub)			(Hub)
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-

Specifications

Transmission Technique	: Baseband
Topology	: Tree or Star
Access Method	: CSMA/CD, 10 Mbps
Standard Conformance	: IEEE 802.3 10BASE-T
Media Supported	: Category 3,4,5 twisted-pair cable
Interfaces	: 5 RJ-45 station ports, 1 RJ-45 daisy-chain port
Hub-to-Workstation Distance	: 100m max.
DimensionsDimensions	: 120mm x 96mm x 28mm (4.72" x 3.78" x 1.10")
System Power	: Requirements - 8VAC, 50/60 Hz, 5 watts
Power Adapter	: Optional external power adapter - 8 VAC, 8VA
	for100V/120V/220-230V/240V
Temperature	: 0°C to 50°C (Standard Operating)
Humidity	: 5% to 95% (Noncondensing)
Certification	: CE Mark
Emissions	: FCC Class B, VCCI Class 2, CISPR Class B
Immunity	: IEC 801-2,3,4, EN60555-2 Class D, EN60555-3
Safety	: UL, CSA, TÜV/GS

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