Luna OBR 6200 Series Portable Optical Backscatter Reflectometers (OBR 6225, OBR 6235)
Portable, rugged OFDR reflectometers measuring distributed return loss and insertion loss with sub-millimeter spatial resolution.
- Number of optical ports
- 1 port
- Number of optical ports
- 2 ports
- Measurement length modes
- 20 m 50 m 100 m 200 m
- Measurement length modes
- 100 m 200 m 500 m
Overview
The Luna OBR 6200 Series consists of portable, rugged optical backscatter reflectometers (OBRs) with backscatter-level sensitivity for testing fiber optic networks in aerospace, naval, data center and industrial applications. The series comprises the OBR 6225 and the OBR 6235, each available in single-channel and dual-channel versions.
Measurement principle
The OBR 6200 Series uses optical frequency domain reflectometry (OFDR) to measure distributed return loss (RL) and insertion loss (IL) with sub-millimeter spatial resolution, high precision and a wide dynamic range. The instruments map reflection versus length and automatically detect RL reflection events and IL sites that exceed user-defined thresholds. Time-of-flight accuracy is referenced to an internal NIST-traceable HCN gas cell.
Models
The OBR 6225 is optimized for short fiber optic networks found in aerospace, naval, transportation and industrial applications, with measurement lengths up to 100 m (200 m with the Extended Length Option). The OBR 6235 extends the measurement length range to 200 m as standard (500 m with the Extended Length Option), suiting data center interconnects and longer networks.
Field use
Both models are battery-powered integrated systems with a 10.1-inch touchscreen user interface, intended for field maintenance and troubleshooting of deployed fiber optic systems. The dual-channel -2 versions feature a sealed duplex FC/APC connector and are offered with IP65 ingress protection and MIL-STD-810G and MIL-STD-461G certifications.
Models in this series
| Model | Description | |
|---|---|---|
| OBR 6225-1 |
Luna OBR 6225-1 Portable Single-Channel Optical Backscatter Reflectometer
Portable, rugged single-channel OFDR reflectometer that measures distributed return loss and insertion loss with sub-millimeter resolution. |
Details → |
| OBR 6225-2 |
Luna OBR 6225-2 Portable Dual-Channel Optical Backscatter Reflectometer with IP65 Rating
Rugged dual-channel OFDR reflectometer with sealed duplex FC/APC port, IP65 rating and sub-millimeter resolution for short fiber links. |
Details → |
| OBR 6235-1 |
Luna OBR 6235-1 Portable Single-Channel Optical Backscatter Reflectometer
Portable single-channel OFDR reflectometer that measures distributed return loss and insertion loss over fiber links up to 200 m, or 500 m optional. |
Details → |
| OBR 6235-2 |
Luna OBR 6235-2 Portable Dual-Channel Optical Backscatter Reflectometer with IP65 Rating
Portable dual-channel OFDR reflectometer with IP65 rating, sub-millimeter sampling resolution and up to 500 m measurement length. |
Details → |
Key Features
- Fully portable and rugged OBR
- Track and analyze return loss (RL) and insertion loss (IL) versus length
- Measure length and latency with high precision
- Spatial sampling resolution down to 80 μm
- Detect and precisely locate reflective events
- Automatic event detection
- One or two optical channels
- Available with IP65 and MIL-STD certifications
- Sub-millimeter sampling resolution with no dead zones
Specifications
|
Number of optical ports
OBR 6225-1, OBR 6235-1 |
1 port |
|---|---|
|
Number of optical ports
OBR 6225-2, OBR 6235-2 |
2 ports |
|
Measurement length modes
OBR 6225-1, OBR 6225-2 |
20 m 50 m 100 m 200 m
200 m mode with Extended Length Option (OPT06225) |
|
Measurement length modes
OBR 6235-1, OBR 6235-2 |
100 m 200 m 500 m
500 m mode with Extended Length Option (OPT06235) |
|
Sampling resolution (two-point)
OBR 6225-1, OBR 6225-2 |
0.080 mm 0.10 mm 0.20 mm 0.40 mm
For 20 m, 50 m, 100 m and 200 m modes; distance between two sample points in SMF-28. Web page lists 0.80 mm (@ 20 m length); datasheet value used |
|
Sampling resolution (two-point)
OBR 6235-1, OBR 6235-2 |
0.20 mm 0.40 mm 1.0 mm
For 100 m, 200 m and 500 m modes; distance between two sample points in SMF-28. Web page lists 0.20 mm (@ 200 m length); datasheet value used |
| Time-of-flight measurement accuracy |
± 0.005%
Accuracy guaranteed via internal NIST-traceable HCN gas cell |
|
Wavelength scan range
OBR 6225-1, OBR 6225-2 |
10 nm 8 nm 4 nm 2 nm
For 20 m, 50 m, 100 m and 200 m modes |
|
Wavelength scan range
OBR 6235-1, OBR 6235-2 |
4 nm 2 nm 0.8 nm
For 100 m, 200 m and 500 m modes |
| Center wavelength | 1546.7 nm |
| Measurement time | 10 s |
|
Maximum device length
OBR 6225-1, OBR 6225-2 |
Up to 100 m, (200 m optional) |
|
Maximum device length
OBR 6235-1, OBR 6235-2 |
Up to 200 m, (500 m optional) |
| RL dynamic range |
70 dB
Range between strongest reflection greater than -60 dB and noise floor |
|---|---|
| Total range |
0 to -129 dB
Noise floor return loss at half of maximum length |
| Sensitivity |
-129 dB
Noise floor return loss at half of maximum length |
| Resolution |
± 0.1 dB
Measured with 1 cm integration width |
| Accuracy |
± 0.5 dB
Measured with 1 cm integration width |
| IL dynamic range, in reflection mode |
15 dB
Two way loss before backscatter reaches noise floor and IL measurements are no longer possible |
|---|---|
|
Resolution
OBR 6225-1, OBR 6225-2 |
± 0.1 dB
Measured with integration widths of 10 cm, 12.5 cm, 25 cm and 50 cm for 20 m, 50 m, 100 m and 200 m modes, respectively |
|
Accuracy
OBR 6225-1, OBR 6225-2 |
± 0.2 dB
Measured with integration widths of 10 cm, 12.5 cm, 25 cm and 50 cm for 20 m, 50 m, 100 m and 200 m modes, respectively |
|
Resolution
OBR 6235-1, OBR 6235-2 |
± 0.1 dB
Measured with integration widths of 25 cm, 50 cm and 125 cm for 100 m, 200 m and 500 m modes, respectively |
|
Accuracy
OBR 6235-1, OBR 6235-2 |
± 0.2 dB
Measured with integration widths of 25 cm, 50 cm and 125 cm for 100 m, 200 m and 500 m modes, respectively |
| Optical output power | 4 mW |
|---|---|
| Battery | 3 h runtime; 2 h charge time |
| Touchscreen display | 10.1”, 1280 x 800 resolution |
| Data I/O ports | USB-C, RJ45 Ethernet |
|
Optical connector
OBR 6225-1, OBR 6235-1 |
FC/APC (SC/APC or FC/APC adapter patch cord) |
|
Optical connector
OBR 6225-2 |
Sealed duplex FC/APC (FC/APC adapter patch cord) |
|
Optical connector
OBR 6235-2 |
Sealed duplex FC/APC (SC/APC or FC/APC adapter patch cord) |
| Weight | 10.1 lb (4.6 kg) |
| Case size | 13.4 x 8.7 x 2.8 in (34 x 22 x 7 cm) |
|
Military certification
OBR 6225-2, OBR 6235-2 |
MIL-STD-810G |
|---|---|
|
Ingress protection
OBR 6225-2, OBR 6235-2 |
IP65 |
|
Electromagnetic compatibility
OBR 6225-2, OBR 6235-2 |
MIL-STD-461G |
| Operating temperature | -20 to 35 °C (0 to 35 °C charging) |
| Storage temperature | -20 to 60 °C |
| Operating altitude | 0 to 2500 m (0 to 3000 m storage) |
Applications
- Aerospace and avionics fiber optic test
- Fiber optic link length certification
- Troubleshooting fiber assemblies in the field
- Locating IL sites, high RL connections and fiber breaks
- Maintenance of avionics, aerospace, naval and industrial networks
- Verification of data center interconnect fiber lengths
- Measuring and verifying optical latency in critical interconnects
- Troubleshooting fiber optic sensing systems
Options & Accessories
| Option | Description |
|---|---|
| OPT06225 | Extended Length Option — Adds 200 m measurement mode to the OBR 6225 |
| OPT06235 | Extended Length Option — Adds 500 m measurement mode to the OBR 6235 |