Optical Time-Domain Reflectometer OTDR

1Technical Specification
Optical Time-Domain Reflectometer (OTDR)

otdr

Parameters and conditions Min Typ Max Unit
Operating
Power consumption 5 W
AC Charger Supply Voltage 100 240 VAC
Supply Frequency 50 60 Hz
Input Voltage 4.8 5 5.2 VDC
Operating temperature range 0 45 °C
Storage temperature range -25 55 °C
Relative Humidity, non-condensing 0 95 %
Timing Specification
Master clock frequency 200 MHz
Master clock accuracy <+/- 10 ppm
Master clock period jitter <+/-10 ps
ADC/FPGA clock frequency 100 MHz
ADC sample width 14 bits
ADC bandwidth 650 MHz
Minimum time resolution between two consecutive samples 100 ps
Highest data point resolution ~2 ~3 ~4 mm
Equivalent sampling rate 10 Giga samples/s
Storage size1 262144 (2^18) Samples
Storage width 32 bits
Summing before overflow 262144 cycles
USB data transfer rate 2 000 000 32-bit sam/s
Optical Specification
Number of lasers / board2 1 2 3
Laser power2 15 Laser dependent 120 mW
Laser wavelengths: SM 1310/1490/1550/ nm
/1625 (all ± 20)
Laser wavelengths: MM 850/1300 nm
(all ± 20)
Laser pulse width range3 5 100 000 ns
Index of refraction range 1.4 1.7
Avalanche Photodiode power supply 40 90 VDC
Avalanche Photodiode gain (M) 1 50
Avalanche Photodiode bandwidth at M=10 2.5 5 GHz
Dynamic Range, SNR = 1, SM 30 45
Dynamic Range, SNR = 1, MM 25
Loss resolution <±0.001 dB
Mechanical
Bulkhead connector: FC standard FC, LC, ST, SC
USB receptacle: Type A standard A, B Mini-A, Mini-B

Notes and comments:

1 Point number selection is arbitrary

2 Laser number and types are optional

3 Range can be incremented in 5ns steps throughout the range

All specifications listed herein are preliminary and typical; they may be changed at any time without notice.

 

 

IMG_20120609_160426

IMG_20120609_174013