3
8
Troubleshooting
• Verify that you are using the right power adapter ( DC 5V, 2.5 A ).
Using a power adapter with DC output greater than 5V could result
in damage to the unit and/or personal injur y.
• Check the configuration DIP switch. It must be set in the same
operation mode as its link par tner.
• Confirm the proper UTP/Fiber cable is being used. The Single Mode
conver ter must use Single Mode fiber optic cable.
Hardware Description
The Front Panel
The Front Panel of the 10/100TX/100FX conver ters consists of one
RJ-45 Por t ( Auto MDI/MDIX ), 6 LED Indicators (TX SPD, LK/ACT,
FDX/COL, Fiber LK/ACT, FDX and PWR ) and one fiber 100Base-FX
Por t.
Ports
• RJ-45 Por t (Auto MDI/MDIX): the Ethernet RJ-45 will features Auto-
Sensing for 10Base-T or 100Base-TX connections and Auto
MDI/MDIX which is basically an auto crossover feature. This
means you can connect to another Switch or workstation without
changing to a crossover cable.
• Fiber Por t: This por t is for the 100 Base-FX connection. Unicom
provides three different styles of fiber connectors (SC/ST, Multi-
Mode or SC, Single-mode).
1 2 3 4
1 2 3 4
1 2 3 4
FEP-5300TF-C
2km
FEP-5400TF-C
15km
FEP-5401TF-C
30km
FEP-5402TF-C
60km
FEP-5300TF-T
2km
Optical Fiber Spec
The following table shows the optical fiber specification:
Module Name
Wavelength
Avg. Launch
Avg. Sensitivity
( nm )
Power ( dB )
( dB )
FEP-5300TF-C
1310 nm
-19 dB
-31 dB
FEP-5300TF-T
1310 nm
-19 dB
-31 dB
FEP-5400TF-C
(15km)
1310 nm
-20 dB
-31 dB
FEP-5401TF-C
(30km)
1310 nm
-15 dB
-34 dB
FEP-5402TF-C
(60km)
1310 nm
-5 dB
-34 dB
Module Name
Avg. Power
Max. FDX
Fiber Size
Loss Budget
Fiber Distance
(µm)
(dBm)
(Km)
FEP-5300TF-C
12 dBm
2 Km
62.5/125
50/125
FEP-5300TF-T
12 dBm
2 Km
62.5/125
50/125
FEP-5400TF-C
11 dBm
15 Km
9/125, 8/125
FEP-5401TF-C
19 dBm
30 Km
9/125, 8/125
FEP-5402TF-C
29 dBm
60 Km
9/125, 8/125
