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J/FE-CF-04-xxx
24-hour Technical Support: 1-800-260-1312 -- International: 00-1-952-941-7600
Fiber
TX
RX
Copper
Pwr
Front Panel
100Base-FX
100Base-TX
Operation
Using status LEDs
Use the status LEDs to monitor the media converter operation in the network.
Power
LED ON indicates connection to adapter power or USB power.
Fiber
LED ON indicates fiber link connection.
Copper
LED ON indicates copper link connection.
LED FLASHING indicates activity.
Auto-Negotiation
The Auto-Negotiation feature allows the media converter to be used with
10/100Base-TX ports. When using Auto-Negotiation, the media converter brings up
the copper link to the highest speed and best duplex mode possible for all attached
network devices.
Full-Duplex network
In a full-duplex network, maximum cable lengths are determined by the type of
cables that are used.
(The 512-Bit Rule does not apply in a full-duplex network.)
See
front cover for available J/FE-CF-04 models.
Half-Duplex network
(512-Bit Rule)
In a half-duplex network, the maximum cable lengths are determined by the round
trip delay limitations of each Fast Ethernet collision domain.
(A collision domain is
the longest path between any two terminal devices, e.g., a terminal, switch, router,
etc.)
The 512-Bit Rule determines the maximum length of cable permitted by calculating
the round-trip delay in bit-times (BT) of a particular collision domain. If the result
is less than or equal to 512 BT, the path is good.
For more information on the 512-Bit Rule, see the white paper titled “Collision
Domains” on the Transition Networks website at:
http://www.transition.com/learning/white papers
Cable Specifications
The physical characteristics must meet or exceed IEEE 802.3™ specifications.
Fiber cable
Bit Error Rate:
<10-9
Singlemode fiber
(recommended)
:
9 μm
Multimode fiber
(recommended)
:
62.5/125 μm
Multimode fiber
(optional)
:
100/140, 85/140, 50/125 μm
J/FE-CF-04
1300 nm multimode
Fiber Optic Transmitter Power:
min: -19.0 dBm
max: -14.0 dBm
Fiber Optic Receiver Sensitivity:
min: -30.0 dBm
max: -14.0 dBm
Link Budget:
11.0 dB
J/FE-CF-04(SC)
1300 nm multimode
Fiber Optic Transmitter Power:
min: -19.0 dBm
max: -14.0 dBm
Fiber Optic Receiver Sensitivity:
min: -30.0 dBm
max: -14.0 dBm
Link Budget:
11.0 dB
J/FE-CF-04(LC)
1300 nm multimode
Fiber Optic Transmitter Power:
min: -19.0 dBm
max: -14.0 dBm
Fiber Optic Receiver Sensitivity:
min: -30.0 dBm
max: -14.0 dBm
Link Budget:
11.0 dB
J/FE-CF-04(SM)
1310 nm single mode
Fiber Optic Transmitter Power:
min: -15.0 dBm
max: -8.0 dBm
Fiber Optic Receiver Sensitivity:
min: -31.0 dBm
max: -8.0 dBm
Link Budget:
16.0 dB
J/FE-CF-04(SMLC)
1310 nm single mode
Fiber Optic Transmitter Power:
min: -15.2 dBm
max: -8.0 dBm
Fiber Optic Receiver Sensitivity:
min: -32.5 dBm
max: -3.0 dBm
Link Budget:
17.3 dB
J/FE-CF-04(LH)
1310 nm single mode
Fiber-optic Transmitter Power:
min: -8.0 dBm
max: -2.0 dBm
Fiber-optic Receiver Sensitivity:
min: -34.0 dBm
max: -7.0 dBm
Link Budget:
26.0 dB
J/FE-CF-04-100
1310 nm (TX)/1550 nm (RX) simplex
J/FE-CF-04-101
1550 nm (TX)/1310 nm (RX) simplex
Fiber-optic Transmitter Power:
min: -13.0 dBm
max: -6.0 dBm
Fiber-optic Receiver Sensitivity:
min: -32.0 dBm
max: -3.0 dBm
Link Budget:
19.0 dB
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[email protected] -- Click the “Transition Now” link for a live Web chat.
Operation -- continued
AutoCross™
The AutoCross feature allows the use of straight-through MDI or crossover MDI-X
cables for connecting to10Base-T or 100Base-TX devices. AutoCross determines
the characteristics of the connection and automatically configures the unit to link
up, regardless of the cable configuration: MDI or MDI-X. This feature is
permanently enabled.
