Cable Specifications 109
Cable Specifications
To comply with the limits of a Class B digital device,
3Com requires that you use quality interface cables when
connecting to this device. Changes or modifications not
expressly approved by 3Com could void the user’s authority
to operate this equipment. Examples of supported cable
types are shown in Table 12.
The 10BASE-T cable you use for establishing a connection
to the network should not be used for any other purpose.
It must be dedicated to the link between the NIC and
the network.
For complete cabling details, see the IEEE 802.3 specification,
section 8.4, “Coaxial Cables and Electrical Parameters.”
Table 12 Supported Cable Types
Type Example
Unshielded
twisted-pair
100-ohm
Category 3 LAN and high-speed data cable, for
example, Anixter CM-00424BAG-3 or equivalent
Category 4 extended distance LAN cable, for
example, Anixter CM-00424BAG-4 or equivalent
Thin coaxial RG58 A/U or C/U (50 ohm ± 4)
Thick coaxial RG59 (50 ohm ± 2)
Book Page 109 Monday, June 7, 1999 8:55 AM
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