background image

2

FOCN

Instruction Manual

Safety Precautions

 The optical emissions from the units are laser-based Class IIIb, and may present eye hazards if improperly used.  

NEVER USE 

ANY KIND OF OPTICAL INSTRUMENT TO VIEW THE OPTICAL OUTPUT OF THE UNIT.

  

As always, be careful when working with optical fibers.  Fibers can cause painful injury if they penetrate the skin.

Laser Safety Procedures
 ALWAYS 

read the product data sheet and the laser safety label before powering the product.  Note the operating wavelength, 

optical output power, and safety classifications.
 If safety goggles or other eye protection are used, be certain that the protection is effective at the wavelength(s) emitted by 

the device under test 

BEFORE 

applying power.

 ALWAYS

 connect a fiber to the output of the device 

BEFORE

 power is applied.  Power should never be applied without an 

attached fiber output.  If the device has a connector output, a connector should be attached that is  

connected to a fiber.  This ensures that all light is confined within the fiber waveguide, virtually eliminating all potential 

hazard.

 NEVER look in the end of a fiber to see if light is coming out. NEVER! 

 Most fiber optic laser wavelengths (1310

nm and 1550 

nm) are totally invisible to the unaided eye and will cause permanent damage.  Shorter wavelength lasers (e.g. 780 nm) are 

visible and are very damaging.  Always use instruments, such as an optical power meter, to verify light output.

 NEVER, NEVER, NEVER

 look into the end of a fiber on a power device with ANY sort of magnifying device.  

This includes microscopes, eye loupes, and magnifying glasses.  This WILL cause permanent, irreversible burn on your retina.  

Always double check that power is disconnected before using such devices.  If possible, completely disconnect the unit from 

any power source.
 If you have questions about laser safety procedures, please call Blonder Tongue before powering your product.
Laser safety classes for the FOCN:

Storing the Unit

 If a unit is to be out of use for an extended period of time, the following steps should be taken to ensure the  

preservation of the unit:
 

1.  The storage temperature range is -20°C to +70°C.

 

2.  A low humidity environment is preferable for long term storage.

 

3.  All connectors should be covered with active device receptacle caps.

INVISIBLE LASER RADIATION

EMITTED FROM END OF 

FIBER OR CONNECTOR

AVOID EXPOSURE TO BEAM

Do not view beam directly with

optical instruments

INVISIBLE LASER RADIATION EMITTED FROM END OF FIBER OR CONNECTOR

AVOID EXPOSURE TO BEAM

Class IIIB Laser Product IEC-60625 1193 Max. Output 30 mW Wavelength: 1.3µm

Wavelength:  1.3µm

Max. Output: 30 mW

Class III Laser Product

AVOID EXPOSURE

INVISIBLE LASER

RADIATION EMMISSIONS

Warning: The optical emissions from the units are 

laser-based and present eye  

hazards. Follow all safety precautions

  Class 

Wavelength Range 

Optical Power Accession Limits

  IIIb 

180 nm to 400 nm 

Varies with    and exposure time. 

   

400 nm to 106 nm 

0.5 Watt

TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE COVER FROM THIS UNIT.   

NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

Summary of Contents for FOCN Series

Page 1: ...es Inc All rights reserved Specifications are subject to change without notice Trademarks are the property of their respective owner FOCN Series Fiber Optic Compact Node Model Stock No FOCN S4S 201 7420A 1 FOCN S4S 204 7420A 4 FOCN S4S 205 7420A 5 Status Date Document No Issue No Author Active September 28 2010 651215000C 3 KK Obsolete May 15 2009 651215000B 2 KK ...

Page 2: ... into the end of a fiber on a power device with ANY sort of magnifying device This includes microscopes eye loupes and magnifying glasses This WILL cause permanent irreversible burn on your retina Always double check that power is disconnected before using such devices If possible completely disconnect the unit from any power source If you have questions about laser safety procedures please call B...

Page 3: ... should not be operated at the upper limit of the temperature range Installation in wet areas or areas of extremely high humidity should be avoided The FOCN should not be installed in areas that are accessible to children The FOCN may be installed and operated in any position on a flat surface The unit has two slots in the bottom plate to accommodate mounting hardware The unit should be mounted by...

Page 4: ...r with OMI 3 2 77 NTSC channel loading to 550 MHz digital loading to 1000 MHz 6 dB below analog Electrical Mechanical Dimensions 3 H x 6 D x 2 1 H Weight 12 oz Operating Temperature Range 10 to 55 C temperature at the mounting plate Enclosure IP Rating IP20 Powering 12 VDC via external Power Supply included DC Ripple 50 mV Power Dissipation with return TX 7 W Return Optical Transmitters Specificat...

Page 5: ...55 MHz to 550 MHz and digital loading from 550 MHz to 1000 MHz at 6dB below analog The RF levels are measured at 547 25 MHz Although the node will operate at optical input levels as high as 2 dBm there is little improvement in the C Nperformance of the node at optical input levels above 0 dBm For optimum distortion performance it is recommended that the optical input to the node be kept at or belo...

Page 6: ...V actual after the attenuator With a test carrier present at the port 19 dBmV max measure its level at the return 20 dB test point Adjust the pad for a 20 dB test point reading of 11dBmV return input External Test Points The FOCN has three external test points The received Optical Power test point is calibrated at 1V per mW 1310 nm it should be measured with a high impedance voltmeter This test po...

Page 7: ...N is 0 5VDC to 0 9VDC approx 3dBm to 0 5dBm Operation down to 8dBm is feasible with reduced performance If the Fiber run is less than a few kilometers then the optical signal must be lowered before the system can operate cor rectly Failure to lower the signal into the operating range of the receiver may cause an overloaded or distorted picture The easiest way to lower the signal is to use an optic...

Page 8: ...he tissue with alcohol 3 First clean the sides of the connector ferrule Place the connector ferrule in the tissue and apply pressure to the sides of the ferrule Rotate the ferrule several times to remove all contamination from the ferrule sides 4 Now move to a clean part of the tissue Be sure it is still saturated with alcohol and it is still four layers thick Put the tissue against the end of the...

Page 9: ...9 FOCN Instruction Manual Notes ...

Page 10: ...10 FOCN Instruction Manual Notes ...

Page 11: ...re registered trademarks of Motorola Corp Blonder Tongue Laboratories Inc Limited Warranty Blonder Tongue Laboratories Inc BT will at its sole option either repair or replace with a new or factory reconditioned product as BT may determine any product manufactured by BT which proves to be defective in materials or workmanship or fails to meet the specifications which are in effect on the date of sh...

Page 12: ...One Jake Brown Road Old Bridge NJ 08857 1000 USA 800 523 6049 732 679 4000 FAX 732 679 4353 www blondertongue com ...

Reviews: