Communications Specialties Pure Digital FIBERLINK 3800 Series Manuel de l'utilisateur - Page 4
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Bandwidth (-3 dB) ......................... 20 Hz to 8 MHz
Input/output Impedance ................. 75 Ohms
Input/output Voltage ...................... 1 V p-p nom., 1.3Vp-p max.
Differential Phase .......................... 1° typical
Differential Gain ............................ 1.5% typical
Signal to Noise Ratio ..................... 60 dB CCIR weighted
Signal Connectors .......................... BNC
Optical:
Operating Wavelength ................... 850nm, 1310nm, 1550nm MM/SM
Optical Fiber .................................. 62.5/125microns MM or
Optical Connectors ........................ ST or FCPC
1 Fiber
Wavelength
850 MM
N/A
1310 MM
0-10
1310 SM
0-19
1550 SM
11-26
*Note: Distance specifications are only approximate and are not guaranteed.
Operating loss budget must not be exceeded.
Misc:
Operating Temperature Range ....... -35 to +75 degrees C
Operating Power ............................ 9 to 24 Volts AC or DC @ 8 watts (max)
CAUTION! The transmitting element in some versions of the Pure Digital Fiber-
link transceiver unit is a solid-state Laser Diode located in the optical connec-
tor on the unit. This device emits invisible infrared electromagnetic radiation
which can be harmful to human eyes. The radiation from this optical connector,
if viewed at close range without a fiber optic cable connected to the optical
connector, may be of sufficient intensity to cause instantaneous damage to the
retina of the eye. Direct viewing of this radiation should be avoided at all times.
2 Fibers
Loss Budget (in dB)
0-18
0-15
0-20
11-28
8-10/125 microns SM
1 Fiber
Distance* (in km)
N/A
0-5
0-45
40-65
3
2 Fibers
0-2
0-15
0-50
35-90