Remote Optical Time Domain Reflectometer Yokogawa AQ7277

The AQ7277 is an OTDR module for RFTS (Remote Fiber Test Sytem), which uses the advanced technology transferred from the AQ7275 high performance OTDR.

The AQ7277 is an OTDR module for RFTS (Remote Fiber Test Sytem), which uses the advanced technology transferred from the AQ7275 high performance OTDR. 

• Measurement at 1650 nm (Maintenance wavelength)
• Built-in 1310/1550 nm cut filter for live-fiber monitoring
• Allow to test PON system through high-port-count splitter
• Ethernet interface for fast data transfer
• Alarm output function

Wavelength		1650±5 nm
Distance range (km)		0.5, 1, 2, 5, 10, 20, 50, 100, 200, 300, 400
Pulse width		3, 10, 20, 50, 100, 200, 500, 1000, 2000, 5000, 10000, 20000
Sampling resolution		5 cm, 10 cm, 20 cm, 50 cm, 1 m, 2 m, 4 m, 8 m, 16 m, 32 m
Dynamic range *1		37dB (typ.)
Event dead zone *2		0.8m (typ.)
Attenuation dead zone *3		12m (typ.)
Distance measurement accuracy		±1 m ± measurement distance x 2 x 10-5 ± 1 sampling resolution
Number of sampling data		Max. 100,000 points
Control interface		LAN (10BASE-T, 100BASE-TX), USB1.1 (Type B)
Alarm Output		Status query, LED drive signal
Environmental Conditions	Operating temperature	0 to +50 °C
	Storage temperature	-20 to +60 °C
	Humidity	85% RH or less (no condensation)
Power requirements		DC+12V (EAIJ voltage division 5), 18W
Dimensions and mass		190 mm (H) x 73 mm (W) x 280 mm( D), Approx. 2 kg
Laser safety standards		Class 1M (IEC 60825-1:1993 +A2:2001), 21CFR1040.10

 

• *1 SNR=1, pulse width: 20 µs, distance range: 200 km, sampling resolution: 8 m, measurement time: 3 minutes. Guaranteed performance: 30 dB.
• *2 Pulse width: 3 ns, return loss: 45 dB or more, at a point 1.5 dB below the peak value (not saturated)
• *3 Pulse width: 10 ns, return loss: 45 dB or more, at a point where the backscatter level is within ?0.5 dB of the normal value

Note: The specifications apply to the temperature range 23 °C ± 2 °C, unless otherwise noted.