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This appendix provides specifications for cables used with the NETGEAR Model EN516 Ethernet
Hub.
Cable Specifications
For 10 Mbps connections, Category 3, 4, or 5 cables can be used. NETGEAR highly recommends
using Category 5 cable to avoid unnecessary expense or confusion if you upgrade to Fast Ethernet.
Table B-1 lists the electrical requirements of Category 3, 4, and 5 cables.
Table B-1.
Electrical requirements of Category 3, 4, and 5 cables
Specification
Number of pairs
Impedance
Mutual capacitance
at 1 KHz
Maximum attenuation
(dB per 100 m, at 20 C)
NEXT loss
(dB minimum)
Cabling Specifications
Category 3
Four
100
15%
6.6 nF per 100 m
at 4 MHz: 5.6
at 10 MHz: 9.8
at 16 MHz: 13.1
at 4 MHz: 32
at 10 MHz: 26
at 16 MHz: 23
Cabling Specifications
Category 4
Four
100
15%
5.6 nF per 100 m
at 4 MHz: 4.3
at 10 MHz: 7.2
at 16 MHz: 8.9
at 4 MHz: 47
at 10 MHz: 41
at 16 MHz: 38
Appendix B
Category 5
Four
100
15%
5.6 nF per 100 m
at 16 MHz: 8.2
at 31 MHz: 11.7
at 100 MHz: 22
at 16 MHz: 44
at 31 MHz: 39
at 100 MHz: 32
B-1
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