Netgear DG834G DG834G Original Reference Manual - Page 129

Inside Twisted Pair Cables, B-1 - as repeater

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Reference Manual for the 54 Mbps Wireless ADSL Firewall Router DG834G Inside Twisted Pair Cables For two devices to communicate, the transmitter of each device must be connected to the receiver of the other device. The crossover function is usually implemented internally as part of the circuitry in the device. Computers and workstation adapter cards are usually media-dependent interface ports, called MDI or uplink ports. Most repeaters and switch ports are configured as media-dependent interfaces with built-in crossover ports, called MDI-X or normal ports. Auto Uplink technology automatically senses which connection, MDI or MDI-X, is needed and makes the right connection. Figure B-1 illustrates straight-through twisted pair cable. Figure B-1: Straight-Through Twisted-Pair Cable Figure B-2 illustrates crossover twisted pair cable. Figure B-2: Crossover Twisted-Pair Cable Network and Routing Basics B-13

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Reference Manual for the 54 Mbps Wireless ADSL Firewall Router DG834G
Network and Routing Basics
B-13
Inside Twisted Pair Cables
For two devices to communicate, the transmitter of each device must be connected to the receiver
of the other device. The crossover function is usually implemented internally as part of the
circuitry in the device. Computers and workstation adapter cards are usually media-dependent
interface ports, called MDI or uplink ports. Most repeaters and switch ports are configured as
media-dependent interfaces with built-in crossover ports, called MDI-X or normal ports.
Auto
Uplink technology automatically senses which connection, MDI or MDI-X, is needed and makes
the right connection.
Figure B-1
illustrates straight-through twisted pair cable.
Figure B-1:
Straight-Through Twisted-Pair Cable
Figure B-2
illustrates crossover twisted pair cable.
Figure B-2:
Crossover Twisted-Pair Cable