Cable Specifications 109Cable SpecificationsTo comply with the limits of a Class B digital device,3Com requires that you use quality interface cables whenconnecting to this device. Changes or modifications notexpressly approved by 3Com could void the user’s authorityto operate this equipment. Examples of supported cabletypes are shown in Table 12.The 10BASE-T cable you use for establishing a connectionto the network should not be used for any other purpose.It must be dedicated to the link between the NIC andthe network.For complete cabling details, see the IEEE 802.3 specification,section 8.4, “Coaxial Cables and Electrical Parameters.”Table 12 Supported Cable TypesType ExampleUnshieldedtwisted-pair100-ohmCategory 3 LAN and high-speed data cable, forexample, Anixter CM-00424BAG-3 or equivalentCategory 4 extended distance LAN cable, forexample, Anixter CM-00424BAG-4 or equivalentThin coaxial RG58 A/U or C/U (50 ohm ± 4)Thick coaxial RG59 (50 ohm ± 2)
