Tyco Electronics PL0349 - Manual (Page 11)

8 Port Ethernet Smart Switch With Fibre Uplink
Tyco Electronics Page 11
Fibre Uplink Port Specifications
The switch has a 100Base-FX optical fibre uplink port that
operates at the 1310nm optical wavelength for both the multimode
and singlemode models.
The fibre size used for multimode links is 50/125 or 62/125 micron.
The fibre size used for singlemode links is 8/125 or 9/125 micron.
The maximum distance between any two fibre optic devices is
determined by a number of factors including optical link loss, the
type and number of patch cords and joints in the link, the launch
power of the transmitter and the sensitivity of the receiver. These
variables make calculating the maximum working distance
between two converters quite difficult and so it is best to design
networks using optical loss budgets rather than using just working
distance.
Plug-In Fiber Ethernet
Module Type
Average
Launch
Power dB
Average
Power
Loss Budget
dBm
Average
Sensitivity
dB
Multimode Converter (SC)
-18 dB
12d Bm -30 dB
Multimode Converter (ST)
-18 dB
12 dBm -30 dB
Multimode Converter (MT-RJ)
-16 dB
14 dBm -30 dB
Singlemode Converter (SC) -18 dB 12 dBm -30 dB
Table 2 - Optical Specifications