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Description: The BCP 420B ultra high speed laser transmitter is designed to be a source of high quality digital and analog fiber-coupled optical signals. In the digital mode, the optical output waveform conforms to the eyemask requirements of BellCore GR-253.
This unit has the folowing features:
Transmission up to 2.5 Gb/s
SONET /SDH compliant to OC-48/STM-16
Very high quality optical output eye
Extremely low jitter
Low cost
Analog and digital operating modes
This unit has the following applications:
Optical receiver testing
Optical detector testing
Long fiber dispersion effects testing
This unit has the following specifications:
DC-Coupled Digital Input
DC-Coupled Digital Input: -4.5 to 0.0 V maximum without damage
Bit Rate: 0 to 2500 Mb/s minimum; 3000 Mb/s typical
Pulse Width, Minimum: 0.4 ns maximum
Logic Levels (10 K, 10 KH, 100 K; Si or GaAs ASIC): Any standard ECL: high = -900 mV; low = -1700 mV; threshold = 1.3 ±0.2 V (adjustable)
Input Termination: 50 ohms to -2.0 V DC
AC-Coupled Digital Input
AC-Coupled Digital Input: 2.0 Vpp maximum
Bit Rate: 50 to 2500 Mb/s minimum; 3000 Mb/s typical
Pulse Pattern: 40 to 60% ones density
Amplitude (for fully limited optical output): 0.70 to 1.5 Vpp minimum
Impedance (AC-coupled through 0.1 uF): 50 ohms
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