Korenix JetNet 3008 v3, Руководство пользователя

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4-5. Cabling
The UTP cable connection between the JetNet 3008 and the attached
devices (switches, hubs, workstations, etc.) must be less than 100 meters
(328 ft.) long.
The transmission distance of JetNet 3008f is depends on the type of fiber
transceiver model and the attenuation of optical fiber cable. The following
information is fiber transceiver specification of JetNet 3008f series. Please
ensure the cable attenuation between two far end nodes is less than the
power budget of fiber transceiver. Table-3 shows the specification of
optical fiber transceiver JetNet 3008f used.
model Cable Type Con. Wavelength TXPwr(min) TxPwr(Max) RxPwr(Min) RxPwr(Max) LinkBudg(dbm) Distance(km)
JetNet
3008f-m
Multi-mode
50~62.5/125
SC 1310nm -20dBm -14dBm -31dBm 0dBm 11dBm
2Km/5Km
Note1
JetNet
3008f-s
Single-mode
8~10/125
SC 1310nm -15dBm -8dBm -34dBm -8dBm 19dBm 30km
Table -3 Specification of Fiber Transceiver
TxPwr (Min): Minimum Transmit power TxPwr (Max): Maximum Transmit power
RxPwr (Min): Maximum Receive sensitivity RxPwr (Max): Minimum Receive sensitivity
Link Budget= TxPwr (Min) –Rx Pwr (Min)
Note:
1. In the IEEE standard, it suggests the available transmission distance is 2KM for 62.5/125um
fiber optical cable in 1310nm wave length. Actually, the attenuation of multi-mode 62.5/125um
optical fiber cable is 1.5dBm/KM and the maximum link distance can up to 4~5km.
2. IEEE organization recommends maximum optical fiber cable distances as defined in
the table-4 shows as below:
Standard Data Rate (Mbps) Cable type IEEE standard Distance
10Base-FL 10 850nm, 50/125um or 62.5/125um Multi-mode
optical fiber cable
2km
100Base-FX 100 1310nm,50/125um or 62.5/125um Multi-mode
optical fiber cable
2km
100Base-SX 100 850nm, 50/125um or 62.5/125um Multi-mode
optical fiber cable
300m
1000Base-SX 1000 850nm, 50/125um Multi-mode optical fiber cable
850nm, 62.5/125um Multi-mode optical fiber
cable
550m
220m
1000Base-LX 1000 1310nm, 50/125um or 62.5/125um Multi-mode
optical fiber cable
1310nm, 9/125um Single-mode optical fiber
cable
550m
5km