Utp cable specifications, Rj-45 pinouts and crossover function, 12 rj-45 pinouts and crossover function – HP NC360T PCI Express Dual Port Gigabit Server Adapter User Manual

Page 12

Advertising
background image

Specifications 12

UTP cable specifications

The NC360T adapter can use existing UTP CAT5 (or better) cable to deliver Gigabit Ethernet over
copper, according to the IEEE 802.3ab specifications. For new installations, CAT5e (enhanced CAT5)

cable is recommended.
Maximum distances for Gigabit over copper cable are 100 meters (328 feet).
To connect to the network, the NC360T uses the following cable for 1000Base-T transmission:

CAT5 UTP or better twisted-pair

22-26 AWG, 100

@ 1 MHz

EIA/TIA 568a or EIA/TIA 568b

RJ-45 pinouts and crossover function

The Ethernet standard also specifies that each segment implement a crossover function to connect the

transmitter of one device to the receiver of a device at the other end, and vice-versa. The crossover
function may be implemented internally at the hub or switch or externally through the twisted-pair media.

10/100 pinouts using internal, straight-through crossover

If the crossover function is implemented internally, the port is labeled MDI-X (Medium Dependent Interface-
Crossover). When an MDI-X port is connected to an MDI port, the twisted pair media should be wired

straight-through using the physical pinouts indicated.

Pin

Function Color

match

Function Pin

1 TD+ Orange

TD+ 1

2 TD- Orange/White

TD- 2

3 RD+ Green

RD+ 3

4

Blue/White

4

5

Blue

5

6 RD- Green/White

RD- 6

7

Brown

7

8

Brown/White

8

Advertising