PLANET Web Switch Family Wgsw800.GIF (6460 bytes)

Web / SNMP Intelligent Products

WGSW-2402

24-Port Fast Ethernet Routing Switch with GbE Uplink


Appendix B. Wiring information & RJ-45 Pin assignment

B.1 Wiring Information

The wiring details are as below for the wiring reference

10/100Base-TX (IEEE802.3/802.3u):

Cables: Category 5 /5e UTP, STP AWG-24~26, 2 pair

Distance: 100 meters max.

1000Base-T (IEEE802.3ab)

Cables: Category 5 /5e UTP, STP AWG-24~26, 4 pair (or above)

Distance: 100 meters max.

1000Base-SX/LX (IEEE802.3z)

Cables:

Standard

Fiber Type

Cable Specification

1000Base-SX
(850nm)

Multi-mode

50/125µm or 62.5/125µm

1000Base-LX
(1300nm)

Multi-mode

50/125µm or 62.5/125µm

Single-mode

9/125µm

Wiring Distances:

Standard

Fiber

Diameter
(micron)

Modal Bandwidth
(MHz * km)

Max. Distance
(meters)

1000Base-SX

MM

62.5
62.5
50
50

100
200
400
500

220
275
500
550

1000Base-LX

MM

62.5
50
50

5
4
5

550

SM

9

N/A

5000*


B.2 Pin Assignment

When connecting your 10/100Mbps Ethernet Switch to another switch, a bridge or a hub, a modified crossover cable is necessary. Please review these products for matching cable pin assignment.

The following diagram and tables show the standard RJ-45 receptacle/connector and their pin assignments for the switch-to-network adapter card connection, and the straight / crossover cable for the Switch-to-switch/hub/bridge connection.

RJ-45 Connector pin assignment

Contact

Media Direct Interface Signal

1

TX + (transmit)

2

TX - (transmit)

3

Rx + (receive)

4

Reserved

5

Reserved

6

Rx - (receive)

7

Reserved

8

Reserved

The standard cable, RJ-45 pin assignment for 10/100Mbps

 

Straight Through Cable

Crossover Cable

Pin 1  <--->  Pin 1

Pin 2  <--->  Pin 2

Pin 3  <--->  Pin 3

Pin 6  <--->  Pin 6

Pin 1 <--->  Pin 1

Pin 2 <---> Pin 6

Pin 3 <---> Pin 1

Pin 6 <---> Pin 2

 

The following shows straight cable and crossover cable connection:

Straight cable for Switch (uplink MDI-II port) to switch/Hub or other devices connection

 

Crossover cable for Switch (MDI-X port) to switch/hub or other network devices

(MDI-X port) connection

 

[Top of this Chapter] Appendix A. Table of content


 


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