Anritsu Coherent OTDR MW90010B for Submarine Cable Fault Location
Coherent OTDR for locating faults in submarine cables up to 20,000 km, with 10 m resolution and a built-in C-band tunable light source.
- Fiber Under Test
- ITU-T G.653 (DSF)
- Optical Connector
- FC, SC (Replaceable, PC type)
- Wavelength (Probe Light)
- 1,527.60 nm to 1,567.13 nm
- Wavelength Accuracy
- ±0.05 nm
Overview
The Anritsu MW90010B is a coherent optical time domain reflectometer (C-OTDR) for finding faults in very long optical submarine cables that use EDFA (Erbium-Doped Fiber Amplifier) repeaters. It measures cables up to 12,000 km as standard. The Extended Measurement Distance option MW90010B-003 raises this to 20,000 km. Sampling resolution stays at 10 m across the whole distance range.
Measurement principle
The C-OTDR sends an optical pulse into one end of the cable. It then analyzes the backscatter and Fresnel reflection that return to the instrument. EDFAs also emit amplified spontaneous emission (ASE). To keep sensitivity high despite this, the instrument uses coherent detection: it detects the beat signal between the backscattered light and a local reference light. From the captured waveform it can determine fault location, cable loss, bending loss and fiber length. The dynamic range is enough to measure systems with repeaters spaced 80 km or more apart.
Tunable light source
A built-in tunable light source covers the C-band from 1527.60 nm to 1567.13 nm in 50 GHz ITU-T grid steps, with ±0.05 nm wavelength accuracy. This allows testing of DWDM submarine cables and of paths that branch by wavelength. A dummy loading light can be set at +50 GHz or −50 GHz from the probe wavelength.
Operation and data handling
A measurement is started in three steps: set the wavelength, set the measurement conditions, start. The instrument shows the estimated time remaining. Additional averaging can be added after a measurement has finished. Up to 8 waveforms can be shown at once, for example to compare an installation trace with a fault trace. Results can be saved in GR-196 and SR-4731 (Telcordia) formats or as PDF reports, on 350 GB of internal memory. The unit can be controlled remotely by commands or through Windows Remote Desktop. Saved waveforms can be analyzed on a PC with the optional NETWORKS emulation software (version 4.1 or newer).
Key Features
- Covers C-band wavelengths from 1527.60 nm to 1567.13 nm
- Built-in tunable light source with ±0.05 nm wavelength accuracy
- Standard 12,000 km distance range, extendable to 20,000 km with option MW90010B-003
- 10 m sampling resolution across the full distance range
- Coherent detection for measurement through EDFA-repeatered submarine cables
- Simultaneous display of up to 8 waveforms
- Additional averaging after a measurement has completed
- Simple three-step measurement setup with estimated time to completion
- Built-in OTDR functions including real-time measurement, zoom/shift and 2-point loss analysis
- Telcordia SR-4731 file format support
- 350 GB internal memory for up to 3.5 million measurement files
- PDF-format measurement reports
- Remote control by external commands and Windows Remote Desktop
- Portable at ≤10 kg mass
Specifications
| Fiber Under Test | ITU-T G.653 (DSF) |
|---|---|
| Optical Connector | FC, SC (Replaceable, PC type) |
| Wavelength (Probe Light) |
1,527.60 nm to 1,567.13 nm
ITU-T Grid, Wavelength in vacuum setting with 50 GHz steps
|
| Wavelength Accuracy |
±0.05 nm
+20°C to +30°C
|
| Warm-up Time |
2 minutes
+20°C to +30°C
|
| Loading Light Source (Dummy) |
wavelength of probe light +50 GHz or –50 GHz
The loading wavelength can be selectable at +50 GHz or –50 GHz of the probe (OTDR) wavelength
|
| Pulse Width | 3, 10, 30, 60, 100 μs |
| Optical Output Power | 0 to +13 dBm, 0.5 dB steps |
| Monitor Output |
–25 to –15 dBm
for OTDR Wavelength Monitor
|
| Dynamic Range (one way, S/N = 1) |
>18 dB typ.
25°C; Pulse width: 10 μs, Average times: 2^16, Distance range: 1000 km, Smoothing: On, Ps: –57 dBm @ Pin, Pase: –20 dBm/nm @ Pin. Product introduction lists standard value >17 dB
|
|---|---|
| Dead Zone |
0.5 km
Pulse width: 3 μs
|
| Distance Measurement Accuracy |
±10 m ±0.5 × 10^–6 × measurement value (m)
Does not include optical fiber refraction index (IOR) based uncertainty
|
| Distance Range | 100 km, 500 km to 12,000 km (in 500 km steps) |
|
Distance Range
MW90010B-003
|
100 km, 500 km to 20,000 km (in 500 km steps)
With option MW90010B-003
|
| Sampling Resolution |
10 m
IOR = 1.500000
|
| Measurement Time |
15 minutes
Distance range: 1000 km, Average times: 2^16
|
| Average Times | 2^8 to 2^24 |
| IOR Settings | 1.300000 to 1.700000 (0.000001 steps) |
| Vertical Scale | 0.02, 0.05, 0.1, 0.2, 0.5, 1.0, 2.0, 5.0, 10.0 dB/div |
| Measurement Functions | Real Time Measurement, Multiple Trace Display (8 Waveforms max.), Zoom & Shift |
|---|---|
| Loss Calculation | Splice Loss, 2Pt Loss, 2Pt LSA, dB/km Loss, dB/km LSA, 2Pt & dB/km, 2Pt & dB/km LSA |
| File Save Formats | GR-196, SR4731 |
| Internal Memory | 350 GB |
| External printer, Hard copy (file: PDF) | |
| Distance Unit | miles, feet, kilofeet, meters, kilometers |
| File Utility | File: Copy, Paste, Delete, Folder: Create new |
| Other | Help function, Remote Control Function |
| Display | 8.4 inch, XGA (1024 × 768) color LCD with touch panel |
|---|---|
| OS | Windows 10 IoT Enterprise 2019 LTSC Entry EPKEA |
| Interface | USB (3 ports, REV2.0, Front 2, Back 1), 10/100/1000M Ethernet, HDMI |
| Power Supply | 100 VAC to 120 VAC/200 VAC to 240 VAC, 50 Hz to 60 Hz, ≤300 VA |
| Dimensions and Mass | 320 (W) × 177 (H) × 451 (D) mm, ≤10 kg |
| Temperature | +10°C to +35°C (operating), –10°C to +50°C (storage) |
|---|---|
| Humidity | <85% RH |
| Vibration | Conforms to MIL-STD-810D |
| CE EMC | 2014/30/EU, EN61326-1, EN61000-3-2 |
|---|---|
| CE LVD | 2014/35/EU, EN61010-1 |
| CE RoHS | 2011/65/EU, (EU) 2015/863, EN IEC 63000: 2018 |
| UKCA EMC | S.I. 2016 No.1091, EN 61326-1, EN61000-3-2 |
| UKCA LVD | S.I. 2016 No.1101, EN 61010-1 |
| UKCA RoHS | S.I. 2012 No.3032, EN IEC 63000: 2018 |
| Laser Safety Level |
IEC 60825-1: 2014 CLASS 1: Optical Output Port, Monitor Port; 21CFR1040.10
Excludes deviations caused by conformance to Laser Notice No.56 dated May 8, 2019
|
Applications
- Submarine optical network installation and maintenance
- Fault location in ultra-long optical submarine cables
- Evaluation of new submarine cables at service deployment
- Troubleshooting in-service submarine cable faults
- DWDM submarine cable measurement
- In-service wet plant monitoring with Ciena PinPoint application
Included
- Power Cord (1 pc)
- B0329G Front Cover (1 pc)
- Z2167A MW90010B Operation Manual (CD-R) (1 pc)
Options & Accessories
| Option | Description |
|---|---|
| MW90010B-037 | FC Connector — Standard connector (required option); the same connector type is supplied for the optical output, input and monitor ports |
| MW90010B-040 | SC Connector — Standard connector (required option); the same connector type is supplied for the optical output, input and monitor ports |
| MW90010B-003 | Extended Measurement Distance — Software option extending the distance range to 100 km, 500 km to 20,000 km (in 500 km steps) |
| MW90010B-ES210 | 2 Years Extended Warranty Service |
| MW90010B-ES310 | 3 Years Extended Warranty Service |
| MW90010B-ES510 | 5 Years Extended Warranty Service |
| B0335C | Carrying Case |
| J0617B | Replaceable Optical Connector (FC-PC) |
| J0619B | Replaceable Optical Connector (SC) |
| J0057 | Optical Adapter FC type |
| J0635 | Optical Fiber Cord with FC-PC at both ends — SM, with FC-PC at both ends; specify length A: 1 m, B: 2 m, C: 3 m |
| Z0914A | Ferrule Cleaner — Cannot be exported to EU Member States |
| Z0915A | Replacement Reel for Ferrule Cleaner (6 pcs/set) — Cannot be exported to EU Member States |
| Z0284 | Adapter Cleaner (Stick type, 200 pcs/set) — Cannot be exported to EU Member States |
| Z0397A | FC Adapter Cap — Monitor Output Port optical connector cap |
| Z0413A | SC Adapter Cap — Monitor Output Port optical connector cap |