Netgear CG814M ユーザーズマニュアル
Reference Manual for the Model CG814M Wireless Cable Modem Gateway
B-16
Networks, Routing, and Firewall Basics
are exchanged at one of the two cable connectors. Crossover cables are often unmarked as such,
and must be identified by comparing the two connectors. Since the cable connectors are clear
plastic, it is easy to place them side by side and view the order of the wire colors on each. On a
straight-through cable, the color order will be the same on both connectors. On a crossover cable,
the orange and blue pairs will be exchanged from one connector to the other.
and must be identified by comparing the two connectors. Since the cable connectors are clear
plastic, it is easy to place them side by side and view the order of the wire colors on each. On a
straight-through cable, the color order will be the same on both connectors. On a crossover cable,
the orange and blue pairs will be exchanged from one connector to the other.
Cable Quality
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.
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.