INSTALLATION
(continued)
Connecting Copper Cable (10BASE-T/100BASE-TX)
Ensure that the correct cable type is installed to support the highest
speed and mode of operation to be selected. Though Category 3 cable
is adequate for the 10BASE-T installation, Category 5 cable is strongly
recommended, since Category 3 cable can NOT be used for
100BASE-TX.
10BASE-T AND THE ETHERNET COLLISION DOMAIN
•
Refer to the 5-Segment Rule (page 8) before installing half-duplex
10BASE-T cable.
•
Installing full-duplex twisted-pair cable avoids collision domain
considerations; distances remain
≤
100 meters.
100BASE-TX AND THE FAST ETHERNET COLLISION DOMAIN
•
Refer to the 512-Bit Rule before installing half-duplex 100BASE-
TX cable.
•
Installing full-duplex twisted-pair cable avoids collision domain
considerations; distances remain
≤
100 meters.
•
NOTE: A Fast Ethernet collision domain can have ONLY ONE
CLASS I repeater OR TWO CLASS II repeaters.
INSTALLING CABLE
To install 10BASE-T or 100BASE-TX cable:
1. Locate or build 10BASE-T or 100BASE-TX cables:
•
803.2 (10BASE-T) or 803.2u (100BASE-TX) compliant
•
with Straight-through or Crossover RJ-45 cable/connectors as
required for site installation (page 13)
•
with RJ-45 plug connectors installed at both cable ends.
2. Connect RJ-45 plug connector at one end of 10BASE-T or
100BASE-TX cable to bridging media converter RJ-45 jack
connector.
3. Connect RJ-45 plug connector at other end of 10BASE-T or
100BASE-TX cable to RJ-45 jack connector on network device.
.
100BASE-FX Full-Duplex Optical Loss Budget
An 11dB loss budget (measured using a fiber optic power meter) is
allowed per link of 100BASE-FX Full-Duplex cable. Standard grade
fiber operating at 1350 nm has approximately 1dB – 2dB loss per
1000 meters of cable. Approximately 0.5dB– 2.0dB loss per
connection point is typical, depending on the integrity of the
connection.
Connecting Fiber Cable (100BASE-FX)
100BASE-FX AND THE FAST ETHERNET COLLISION DOMAIN
•
Refer to the 512-Bit Rule before installing half-duplex 100BASE-
FX cable (
≤
415 meters).
•
Using full-duplex fiber cable avoids collision domain
considerations and extends distances up to 2 kilometers
(multimode) or up to 20 kilometers (singlemode).
•
NOTE: A Fast Ethernet collision domain can have ONLY ONE
CLASS I repeater OR TWO CLASS II repeaters.
INSTALLING CABLE
To install 100BASE-FX cable:
1. Locate or build 100BASE-FX cables:
•
803.2u compliant
•
with male transmit (TX) and receive (RX) fiber connectors
installed at both cable ends.
2. Connect transmit cable connector at one end of fiber cable
to bridging media converter connector marked with an
“outbound” arrow; connect receive cable connector to
bridging media converter connector marked with an
“inbound” arrow.
3. Connect other end of cable installed at transmit (TX)
connector of bridging media converter to receive (RX)
connector on network device; connect other end of cable
installed at receive (RX) connector of bridging media
converter to transmit (TX) connector on network device.
Содержание E-PSW-FX-03
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