Model 920 Ethernet Data Multiplexer Manual
Focal Technologies Corporation
Page 2-10
A Moog Inc. Company
920-0603-00 Rev K
2.4 Optics
An ST optical bushing on the front side of the enclosure provides a bi-directional optical connection.
Figure 11: ST Panel Mount Optical Bushing
Table 10: Optical Interface Parameters for 920-8000-00 and 920-8001-00 625MBaud MMF 1310/1550
Parameter
Min.
Typical
Max.
Unit
62.5um Core Diameter MMF**
Typical distance with no bushings or
other lossy components*
2
km
Data Rate
625
MBaud
Transmit
Transmitter Centre Wavelength
P/N 920-8000-00
1260
1310
1360
nm
Transmitter Centre Wavelength
P/N 920-8001-00
1500
1550
1580
nm
Average Output Power***
-13
-8
dBm
Receive
Receiver Centre Wavelength
P/N 920-8000-00
1500
1550
1580
nm
Receiver Centre Wavelength
P/N 920-8001-00
1260
1310
1360
nm
Receiver Sensitivity***
-24
dBm
Receiver overload
-3
dBm
*CAN bus operation may limit optical distance
** The 920-8000-00 and 920-8001-00 modules have an internal 62.5/125 um LC-ST fiber jumper.
*** Optical transmit power and receiver sensitivity are based on transceiver limits of -15 dBm minimum
transmit power at the SFP and -26 dBm receiver sensitivity.
