Black Box LE14XXA Manual De Usuario
Black Box Modular Switches
Installation and User Guide (8/99)
18
3.2.2
Connecting Fiber Optic S C-type, "Snap-In"
The following procedure applies to installations using a 4PM with SC-type fiber
connectors, i.e., using LE1419C, LE1421C single-mode.
When connecting fiber media to SC connectors, simply snap on the two square male
connectors into the SC female jacks of the 4PM until it clicks and secures.
3.2.3
Connecting Single-Mode Fiber Optic
When using single-mode fiber cable, be sure to use single-mode fiber port connectors.
Single-mode fiber cable has a smaller diameter than multi-mode fiber cable (9/125
microns for single-mode, 50/125 or 62.5/125 microns for multi-mode where xx/xx are
the diameters of the core and the core plus the cladding respectively). Single-mode fiber
allows full bandwidth at longer distances, and may be used to connect 10 Mb nodes up
to 10 Km apart, or 18Km with the LE1421C.
The same procedures as for multi-mode fiber applies to single-mode fiber connectors.
Follow the steps listed in Section 3.2.2 above.
3.2.4
Connecting Twisted Pair (RJ-45,CAT3, CAT5, Unshielded or Shielded)
The RJ-45 ports of the LE14XXA-Series can be connected to the following two media
types: 100BASE-TX and 10BASE-T. CAT 5 cables should be used when making
100BASE-TX connections. When the ports are used as 10BASE-T ports, CAT 3 may
be used. In either case, the maximum distance for unshielded twisted pair cabling is
100 meters (328 ft).
Media
IEEE Standard Connector
Twisted Pair (CAT 3, 4, 5) 10BASE-T RJ-45
Twisted Pair (CAT 5)
100BASE-TX RJ-45
NOTE : It is recommended that high quality CAT. 5 cables (which work for both 10 Mb and
100Mb) be used whenever possible in order to provide flexibility in a mixed-speed
network, since dual-speed ports are auto-sensing for either 10 and 100Mb/s.
network, since dual-speed ports are auto-sensing for either 10 and 100Mb/s.
The following procedure describes how to connect a 10BASE-T or 100BASE-TX
twisted pair segment to the RJ-45 port. The procedure is the same for both unshielded
and shielded twisted pair cables.