Netgear EN516 EN516 Installation Guide - Page 35

Appendix B Cabling Specifications 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) Category 3 Four 100 Ω ± 15% ≤6.6 nF per 100 m at 4 MHz: 5.6 at 10 MHz: 9.8 at 16 MHz: 13.1 Category 4 Four 100 Ω ± 15% ≤5.6 nF per 100 m at 4 MHz: 4.3 at 10 MHz: 7.2 at 16 MHz: 8.9 Category 5 Four 100 Ω ± 15% ≤5.6 nF per 100 m at 16 MHz: 8.2 at 31 MHz: 11.7 at 100 MHz: 22 NEXT loss (dB minimum) at 4 MHz: 32 at 10 MHz: 26 at 16 MHz: 23 at 4 MHz: 47 at 10 MHz: 41 at 16 MHz: 38 at 16 MHz: 44 at 31 MHz: 39 at 100 MHz: 32 Cabling Specifications B-1