JGR BR1 User manual

BR1 Backreflection
Meter
User Manual

BR1 User Manual
ii
M-BR1-001-01
All information contained herein is believed to be accurate and is subject to change without notice. No
responsibility is assumed for its use. © JGR Optics Inc., 2020. All rights reserved.

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TABLE OF CONTENTS
LIST OF FIGURES AND TABLES ................................................................................................................... v
COMPLIANCE ..............................................................................................................1
FDA-CDRH Compliance..............................................................................................................................1
CSA / IEC Compliance ................................................................................................................................1
CE Compliance...........................................................................................................................................1
GENERAL INFORMATION ............................................................................................2
BR1 Backreflection Meter Overview..........................................................................................................2
Applications...............................................................................................................................................2
Key Features..............................................................................................................................................2
Test & Measurement Standards................................................................................................................3
Included Accessories .................................................................................................................................3
Optional Accessories .................................................................................................................................3
SAFETY INFORMATION ...............................................................................................4
Safety Markings on the Unit......................................................................................................................4
Classification..............................................................................................................................................4
Important Safety Information ...................................................................................................................5
Laser Hazards ............................................................................................................................................................... 5
Electrical Hazards......................................................................................................................................................... 5
GETTING STARTED......................................................................................................7
Initial Inspection........................................................................................................................................ 7
Operational Requirements........................................................................................................................7
Product Overview......................................................................................................................................8
BR1 Front Panel............................................................................................................................................................ 8
BR1 Rear Panel ............................................................................................................................................................. 8
OPERATION...............................................................................................................10
Powering Up the Meter...........................................................................................................................10
Device Information and Settings .............................................................................................................10
Performing a Reference ..........................................................................................................................11
Performing an IL and BR Measurement ..................................................................................................13
Performing an Absolute Power Measurement........................................................................................14
BR1 WEBPAGE...........................................................................................................16
Dashboard...............................................................................................................................................16
Settings....................................................................................................................................................16
Network Settings........................................................................................................................................................ 17
Upgrade...................................................................................................................................................................... 17
Help.........................................................................................................................................................18
About.......................................................................................................................................................19
PROGRAMMING GUIDE.............................................................................................21

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Establishing Communication ...................................................................................................................21
USB.............................................................................................................................................................................. 21
Ethernet ...................................................................................................................................................................... 21
Step-by-step Guide..................................................................................................................................21
Notes.......................................................................................................................................................22
Commands Lists.......................................................................................................................................22
MAINTENANCE ..........................................................................................................25
Cleaning the Unit.....................................................................................................................................25
Cleaning the Output................................................................................................................................25
Cleaning Jumper Connectors...................................................................................................................27
STORAGE AND SHIPPING .........................................................................................28
Returning Instruments to JGR Optics ......................................................................................................28
Contact Information................................................................................................................................28
SPECIFICATIONS ......................................................................................................29

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LIST OF FIGURES AND TABLES
Figure 1: BR1 Backreflection Meter..............................................................................................................2
Figure 2: Front view of a BR1........................................................................................................................8
Figure 3: Rear view of a BR1 .........................................................................................................................9
Figure 4: BR1 Setup page ............................................................................................................................10
Figure 5: BR1 Reference page –no stored references................................................................................12
Figure 6: BR1 Reference page –BR0pause message..................................................................................12
Figure 7: BR1 Reference page –stored values............................................................................................13
Figure 8: BR1 Measure page –live reading.................................................................................................13
Figure 9: BR1 Measure page –measurement complete.............................................................................14
Figure 10: BR1 Absolute Power page –live reading....................................................................................14
Figure 11: BR1 Absolute Power page –measurement complete ...............................................................15
Figure 12: BR1 webpage –Dashboard tab..................................................................................................16
Figure 13: BR1 webpage –Network Settings tab........................................................................................17
Figure 14: BR1 webpage –Upgrade tab .....................................................................................................18
Figure 15: BR1 webpage –Help tab............................................................................................................19
Figure 16: BR1 webpage –About tab..........................................................................................................20
Figure 17: Dirty connector end-face inspection using JGR's CS400K..........................................................26
Figure 18: Clean connector end-face inspection using JGR's CS400K.........................................................26
Figure 19: Exposed view of good output fiber management .....................................................................26
Figure 20: Exposed view of poor output fiber management......................................................................26
Table 1: Safety symbols.................................................................................................................................4
Table 2: Environmental requirements..........................................................................................................8
Table 3: Detailed description of the BR1 rear panel components (see Figure 3).........................................9
Table 4: Detailed description of the BR1 Setup page (Figure 4).................................................................11
Table 5: SCPI required commands list ........................................................................................................23
Table 6: BR1 commands list........................................................................................................................23
Table 7: BR1 optical and electrical specifications sheet .............................................................................29
Table 8: BR1 mechanical and environmental specifications sheet.............................................................30

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COMPLIANCE
FDA-CDRH Compliance
Under the US Food and Drug Administration (FDA) Center for Devices and Radiological Health (CDRH), the
unit complies with the Code of Federal Regulations (CFR), Title 21, Subchapter J, which pertains to laser
safety and labeling. See following link for more information:
•http://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?CFRPartFrom=1000&C
FRPartTo=1050
CSA / IEC Compliance
The unit complies with certain standards of the Canadian Standards Association (CSA) and the
International Electrotechnical Commission (IEC).
The unit falls in the Installation Category (Overvoltage Category) II under IEC 664. IEC 664 relates to
impulse voltage levels and insulation coordination. The category is defined as: local level, appliances,
portable equipment, etc., with smaller transient overvoltages than Installation Category (Overvoltage
Category) III.
The unit falls in the Pollution Degree 2 category under IEC 1010-1 and CAN/CSA-C22.2 No. 1010.1. The IEC
standard on Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use
relates to insulation coordination. The CSA standard is on Safety Requirements for Electrical Equipment
for Measurement Control, and Laboratory Use, Part I: General Requirements. The Pollution Degree 2
category is defined as follows: “Normally only non-conductive pollution occurs. Occasionally, however, a
temporary conductivity caused by condensation must be expected.”
CE Compliance
Electronic test equipment is subject to the EMC Directive in the European Union. The EN61326 standard
prescribes both emission and immunity requirements for laboratory, measurement, and control
equipment. This unit has undergone extensive testing according to the European Union Directive and
Standards.

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GENERAL INFORMATION
BR1 Backreflection Meter Overview
The BR1 Backreflection Meter is a user-friendly instrument developed with extremely stable optics for
precise measurement of backreflection, insertion loss and power.
Figure 1: BR1 Backreflection Meter
Applications
•Component testing
•Connector and patch cord testing
•Incoming inspection
•QA and R&D
Key Features
•Stable BR measurements at low values
•BR range to -85 dB
•Up to 4 internal lasers
•Custom wavelengths and core sizes possible

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Test & Measurement Standards
•IL conforms to IEC 61300-3-4 and IEC 61280-4-1
•Multimode IL launch conditions meet the IEC 61280-4-1 Encircled Flux standard
•BR conforms to IEC 61300-3-6
Included Accessories
•USB A to USB B cable (1.8m)
•Ethernet cable (1.8m)
•AC power cord (2m)
•SD00 slide detector cap
•SD01 slide FC detector adapter
•FC/APC –FC/UPC jumper (1m) calibrated jumper
•ISO 17025 NIST-traceable calibration report
Optional Accessories
•Remote-head detector
•Slide detector adapters
•Barcode scanner
•Rackmount kit

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SAFETY INFORMATION
To avoid situations that could result in serious injuries or death, always observe the following precautions.
The safety instructions must be observed whenever the unit is operated, serviced, or repaired. Failure to
comply with any of these instructions or with any precaution or warning contained in the user manual is
in direct violation of the standards of design, manufacturing, and intended use of the unit. JGR Optics Inc.
assumes no liability for the customer’s failure to comply with any of these safety requirements.
Safety Markings on the Unit
See Table 1 for symbols and messages that can be marked on the unit. Observe all safety instructions that
are associated with a symbol.
Table 1: Safety symbols
Laser radiation may be present. Refer to the user manual for instructions on handling
and operating the unit safely. Avoid looking into any ports near which this symbol
appears.
Frame or chassis terminal for electrical grounding within the unit.
Protective conductor terminal for electrical grounding to the earth.
WARNING
Procedure can result in serious injury or loss of life if not carried out in proper
compliance with all safety instructions. Ensure that all conditions necessary for safe
handling and operation are met before proceeding.
CAUTION
Procedure can result in serious damage to or destruction of the unit if not carried out
in compliance with all instructions for proper use. Ensure that all conditions necessary
for safe handling and operation are met before proceeding.
Classification
The BR1 consists of an exposed metal chassis that is connected directly to earth via a power cord and is
therefore classified as a Class 1 instrument.
The laser (or lasers) contained in the BR1 is (are) Class 1 laser(s) as specified under the laser classification
of the US Food and Drug Administration (FDA) Center for Devices and Radiological Health (CDRH).

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Important Safety Information
Laser Hazards
Warning
•Never look directly into the end of an optical cable connected to an optical
output device that is operating. Laser radiation is invisible and direct
exposure can severely injure the human eye.
Electrical Hazards
Warning
•Some of the circuits are powered whenever the unit is connected to the AC
power source (line power). To ensure that all circuits are powered off,
disconnect the power cord from either the power inlet on the unit’s rear
panel or from the AC line-power source (receptacle). The power cord must
always be accessible from one of these points. If the unit is installed in a
cabinet, the operator must be able to disconnect the unit from the line power
by the system’s line-power switch.
•Use only the type of power cord supplied with the unit. If you need to replace
a lost or damaged cord, make sure to replace with a power cord of the same
type.
•Connect the power cord only to a power outlet equipped with a protective
earth contact. Never connect to an extension cord or any receptacle that is
not equipped with this feature.
•If using a voltage-reducing autotransformer to power the unit, ensure that
the common terminal connects to the earthed pole of the power source.
•Do not interrupt the protective earth grounding. Such action can lead to a
potential shock hazard that can result in serious personal injury. Do not
operate the unit if an interruption to the protective grounding is suspected.
•Do not operate the unit when its cover or panels have been removed.
CLASS 1
LASER PRODUCT