Utp cable specifications, Rj-45 pinouts and crossover function – HP NC7170 Dual Port PCI-X Gigabit Server Adapter User Manual
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Specifications
C-2
HP NC7170 Dual Port PCI-X 1000T Gigabit Server Adapter
Table C-1: NC7170 Gigabit Server Adapter Specifications
continued
Specification Description
Relative Humidity
Operating; 10% to 90%
Storage: 5% to 95%
Agency Approvals
•
FCC Class B
•
VCCI Class B
•
BSMI Class A
•
CISPR Class B
•
EN60950
•
MIC Class B
•
EN 55022 Class B
•
EN55024-1
•
UL
•
Canada UL
•
ICES-003 Class B
UTP Cable Specifications
To connect to the network, the NC7170 Server Adapter uses the following cable for
1000Base-T transmission.
• Category 5 UTP or better twisted-pair
• 22-26 AWG, 100Ω @ 1MHz
• EIA/TIA 568a or EIA/TIA 568b
Using UTP Category 5 Cable in Gigabit over Copper Installations
For Gigabit over copper installations, Category 5 UTP or better 1000Base-T cable must
comply with the IEEE 802.3ab 1000Base-T standard. For new installations, Category 5e
(enhanced Category 5) or better cable is recommended. Maximum distances for Gigabit over
copper cable are 100 meters (328 feet).
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.