Chapter 3
3-12
Can You Use Existing Wiring?
You may be able to use existing wiring with your installation. All twisted-pair wire
used between hub and hub, or hub and device, should conform to the IEEE
Standard 802.3 Draft 10, Section 14.4, Media Specification. In general, this is
ordinary, unshielded twisted-pair wiring.
The physical limitations and regulations on the use of your building’s wiring can
greatly affect your choice of network layouts. Evaluate your building and existing
wiring, jacks, etc., to determine whether you can use existing wiring to set up the
network, or whether new wiring will need to be installed. If you have no
experience in this area, have the building manager or a telephone installer
determine whether you can use existing wiring.
To evaluate sites, see "Site Requirements for Hubs" and "Site Requirements for
Wiring."
To evaluate existing wiring, see "Standards for Network Wiring" and "Tracing
Existing Wire Routes."
Site Requirements for Wiring
Wiring is affected by electrical interference in its immediate environment. Ensure
that both existing and planned wiring:
• are not in close proximity to sources of electrical noise, such
as radio transmitters and broadband amplifiers, motors and
current switches.
• do not run close to fluorescent lighting fixtures
• do not run parallel to power lines for long distances.
Site Requirements for Hubs
Asanté Hubs must be placed within 100 meters (328 feet) of the network devices.
Plan for devices that may be installed in the future. If you are wiring a building
which has multiple wiring closets, you may want to place hubs in both the main
wiring closet and satellite wiring closets.
• The location should be readily accessible for installation and
maintenance. There must be enough space to mount the
AsantéHub with a two-inch clearance around the ventilation
grills.
• The temperature and humidity requirements must fall within
those specified in Appendix B, "Technical Specifications."
• The hub must be placed near an AC outlet.
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