OPTILAB BCB-4 User Manual Download Page 14

BCB-

4 User’s Manual 

Page 11 of 14 

 

Optilab, LLC

 

600 E. Camelback Road, Phoenix, AZ  85012 
Phone: (602) 343-1496, Fax: (602) 343-1489, Email:  [email protected] 

6.3  Care of Fiber-optic Connectors 

Damage  to  optical  connectors  account  for  more  than  70  percent  of  equipment 
performance degradation.  To avoid such damage, the user should use only industrial 
grade  99%  pure  isopropyl  alcohol  and  follow  the  procedures  below  to  keep  the 
connectors, adaptors, and receptacles clean. 

 

Cleaning Optical Connector End-face with Wipe and Alcohol 

 

To  properly  clean  optical  connectors  utilizing  lens  tissue  grade  wipes  and  alcohol 
follow  the  procedure  below.  The  moist  wipe  removes  dust  particles,  oil  and 
contaminants  that  may  damage  or  blot  the  end-face  of  the  connector  during 
connection.  The  dry  wipe  removes  residual  alcohol  that  may  be  ignited  by  optical 
emission. 

1.  Disable  the  optical  output  and  turn  off  unit  to  prevent  accidental  exposure  or 

damage to the optical connector by optical emission. 

2.  Moisten  a  wipe  with  alcohol  by  placing  on  top  of  the  alcohol  dispenser  and  push 

down to saturate the wipe. 

3.  Place the moist wipe on a work surface and place a second dry wipe next to it. 

4.  Wipe  the  optical  connector,  end-face  down  on  the  moist  wipe  3  times  and  then 

repeat on the dry wipe. 

5.  Visually inspect the end-face of the optical connector with an optical microscope to 

verify cleanliness. Repeat steps 2 to 5 as needed. 

Cleaning Optical Connector Sides, Receptacles, Adaptors with Swab and Alcohol 

 

Dust or particles can adhere to the insides of receptacles and adaptors or the sides of 
the  optical  connector  ferrule.  Their  presence  can  affect  the  alignment  of  the  optical 
fiber  connectors  and  increase  connection  loss.  To  properly  clean  optical  connectors, 
receptacles, and adaptors utilizing a swab and alcohol follow the procedure below: 

1.  Disable  the  optical  output  and  turn  off  unit  to  prevent  accidental  exposure  or 

damage to the optical connector by optical emission. 

2.  Moisten  the  swab  by  placing  it  on  top  of  the  alcohol  dispenser  and  push  down  to 

saturate the swab. 

3.  For  receptacles,  adapters,  or  other  connection  points,  insert  the  moistened  swab 

and  rotate  the  tip  1/2  turn  clockwise  and  counterclockwise  6  times  while  applying 
light but firm pressure.  

4.  For fiber connectors, rotate the tip of the moistened swab 5 revolutions around the 

connector while applying light but firm pressure. 

5.  Visually  inspect  the  end  face  of  the  connector  with  an  optical microscope  to  verify 

cleanliness. Clean end-face as needed. 

 

Summary of Contents for BCB-4

Page 1: ...st read this manual before operating the BCB 4 unit Operations other than those described in this manual may result in personal injury and or damage to the unit Note that any attempt to open or fix th...

Page 2: ...15 2020 Added Vpi measurement function 1 3 03 15 2021 Specification Modified 1 4 04 26 2022 Added information for setting Vpi or using a feedback loop 1 5 08 18 2022 Modified command set Copyright 20...

Page 3: ...1 2 OPERATION 2 2 1 INTRODUCTION 2 2 2 INITIAL INSPECTION 2 2 3 CONTROLS 3 2 4 APPLICATION BLOCK DIAGRAM 4 2 5 OPERATION INSTRUCTIONS 5 2 6 RS485 COMMAND SET 7 2 7 BIAS CONTROL POINT SETTING INFORMATI...

Page 4: ...RS 485 multi addressing control and monitor interface the BCB 4 unit is the ideal choice for industrial and OEM applications when paired with any of Optilab s wide variety of optical modulators conta...

Page 5: ...pt You should however inspect the unit for any damage that may have occurred in transit If the shipping container or the packing material is damaged keep it until the contents of the shipment have bee...

Page 6: ...al of the modulator DITHER SIGNAL ADJUST This potentiometer adjustments the 1 kHz dither signal from approximately 0 to 450 mV p p BIAS OUTPUT PORT This two pin port is used to relay the corresponding...

Page 7: ...ollowing block diagram denotes the typical connection of the BCB 4 to increase the understanding to the end user on its operation and interconnectivity The BCB 4 bias controller utilizes an on board p...

Page 8: ...ack to the PD of the BCB 4 Without this connection the BCB 4 will not function properly The split ratio of the tap coupler should be selected based on the optical input power to the intensity modulato...

Page 9: ...er marked in the diagram in section 2 3 of this manual rotate this adjustment knob to increase or decrease the dither amplitude value from approximately 20 to 450 mVpp This dither signal can be measur...

Page 10: ...nd CR LF 2 6 RS485 Command Set When the electrical connections have been made and the software settings for serial port transmission are set correctly you are now able to send commands to the BCB 4 mo...

Page 11: ...and 10 dBm for optimum performance C Improper polarization input to modulator S Check the input polarization type and axis alignment of your modulator and confirm the input seed source is matching An...

Page 12: ...Frequency 1 kHz Dither Adjustment Range 20 to 450 mVpp Bias Modes Available Q Q Minimum Maximum and Manual Bias DC Bias Output Voltage Range 10V to 10V Modulator Voltage Vpi Range 1 5 to 8V 5 Mechani...

Page 13: ...or consequential loss Note that the warranty will be void upon any attempt to open or to fix the equipment by the user without prior approval of Optilab LLC 6 2 Service and Calibration Your BCB 4 uni...

Page 14: ...e next to it 4 Wipe the optical connector end face down on the moist wipe 3 times and then repeat on the dry wipe 5 Visually inspect the end face of the optical connector with an optical microscope to...

Page 15: ...BCB 4 User s Manual Page 12 of 14 Optilab LLC 600 E Camelback Road Phoenix AZ 85012 Phone 602 343 1496 Fax 602 343 1489 Email sales oequest com Appendix A 4 pin Molex Connector NOT USED FOR BCB 4...

Page 16: ...C Value The optical input DAC value is a representation of the optical input power to the feedback photodiode If your unit was ordered with the photodiode installed the calibration data for the PD has...

Page 17: ...t address 2 MODE BIAS MODE 1 Q 2 Q 3 MAX 4 MIN 5 Manual Bias SET ADD V XXXXX CR LF Set the bias voltage DAC value when the device is in manual bias mode 5 Range 00000 16383 00000 11 00V and 16383 11 0...

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