Allied Telesis AT-FS724 - Manual (Page 42)

7URXEOHVKRRWLQJ
3-2
1HWZRUN#&DEOLQJ#3UREOHPV
Poor network performance or no communications may occur as a
result of improper cable length or type.
If you have 100Base-TX (Fast Ethernet), some network problems may
be related to exceeding cabling distances. Refer to the standard IEEE
802.3u, Clause 29.3.1.2 on Round Trip Collision Delay. This
document specifies that the collision domain diameter must be
within the following limits:
❑ Under 328 ft (100 m) for UTP cabling
❑ Under 1,351 ft (412 m) for half-duplex fiber cabling (Fiber
standards under ANSI X3T12 specify 2 km for full-duplex fiber
cabling.)
Proper cable type must be used:
❑ 100Base -TX requires Category 5 UTP.
❑ 100Base-FX requires 62.5/125 1300 nm multimode fiber.
&RQWDFWLQJ#7HFKQLFDO#6XSSRUW
When contacting Allied Telesyn for support on any of its products,
provide Technical Support with the following information:
❑ Model and serial number
❑ Software version number (displayed on the top of the Port
Status Menu)
❑ Description of the problem
See the Allied Telesyn website at www.alliedtelesyn.com for a list of
worldwide Allied Telesyn locations and individual telephone, fax, and
email information for Technical Support.