Ethernet Cabling Guidelines
Introduction
The 3300 ICP system transmits voice communications over a data network using Voice over
Internet Protocol (VoIP). Electrical interference in the environment can reduce the quality of
the voice and data signals that are transmitted over Ethernet cable. Desktop computers,
printers, servers, lighting, and other office devices place a high demand on the electrical
infrastructure and increase the risk of electrical interference. You can minimize electrical
interference and improve network efficiency by following the cabling guidelines detailed in this
appendix.
Maximum Cable Lengths
Note: Special testing equipment is available from Mitel Product Support. This equipment
can verify Ethernet cable performance and detect cable faults.
Table 85: Maximum CAT 5 or CAT 5e Ethernet Cable Lengths
Cabling Maximum Length
Under Desk 10 ft. (3 m)
Floor to ceiling 11.5 ft. (3.5 m)
Horizontal span in ceiling 300 ft. (90 m)
Equipment closet 11.5 ft. (3.5 m)
Total maximum length 333 ft. (100 m)
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