Netgear WGM124 User Manual download pdf (Page 52)

NETGEAR Wireless Router Setup Manual

B-12 Network, Routing, and Firewall Basics

December 2004

Category 5 Cable Quality

Category 5 distributed cable that meets ANSI/EIA/TIA-568-A building wiring standards can be a

maximum of 328 feet (ft.) or 100 meters (m) in length, divided as follows:

20 ft. (6 m) between the hub and the patch panel (if used)

295 ft. (90 m) from the wiring closet to the wall outlet

10 ft. (3 m) from the wall outlet to the desktop device

The patch panel and other connecting hardware must meet the requirements for 100 Mbps

operation (Category 5). Only 0.5 inch (1.5 cm) of untwist in the wire pair is allowed at any

termination point.

A twisted pair Ethernet network operating at 10 Mbits/second (10BASE-T) will often tolerate low

quality cables, but at 100 Mbits/second (10BASE-Tx) the cable must be rated as Category 5, or

Cat 5, by the Electronic Industry Association (EIA). This rating will be printed on the cable jacket.

A Category 5 cable will meet specified requirements regarding loss and crosstalk. In addition,

there are restrictions on maximum cable length for both 10 and 100 Mbits/second networks.

Table B-1. UTP Ethernet cable wiring, straight-through

Pin Wire color Signal

1 Orange/White Transmit (Tx) +

2 Orange Transmit (Tx) -

3 Green/White Receive (Rx) +

4Blue

5 Blue/White

6 Green Receive (Rx) -

7 Brown/White

8Brown

1 2 ... 47 48 49 50 51 52 53 54 55 56 57 ... 104 105

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Netgear WGM124 User Manual Page 52