beautypg.com

Hub’s rj-45 pin assignments, Specifications – Accton Technology 10BASE-T EH2045S User Manual

Page 4

background image

EtherHub-5st User’s Guide

4

Hub’s RJ-45 Pin Assignments

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

Pin

MDI-X Assignment

(port 1~5)

MDI-Assignment

(Daisy-Chain Port)

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