February, 2009

In This Issue

Broadband Benefits From US Economic Stimulus Plan

Updated AFOT, CFOS Certifications

FOA Online Fiber Optic Reference Guide Keeps Expanding- and adds Premises Cabling, FTTH and "Google Custom Search"

Tech Topics: New "Google Custom" Search Tool.  See Tech Topics Below.

Q&A: Long/fast multimode links. What's the accuracy of OTDR length measurements?

Product News:  Sales and used equipment buy/sell. See "Product News" Below

Worth Reading: Corning video, JDSU Webinar series on fiber testing. Fiber optic sensors on the web. .  See "Worth Reading" below
FTTH: FTTH Council updates on world FTTH penetration. 
Looking For Jobs - several this month, including immediate needs for Splicers and OTDR Techs, Instructors, more. See "Jobs" Below
This Month's "Tech Puzzler"
FOA Home Page
NEW: Sign up for the FOA eMail Newsletter

The Archives: Previous Issues:
1/08, 2/08, 3/08, 4/08, 5/08,  6/08, 7/08, 8/08, 09/0810/08, 11/08,  12/08  
12/07, 11/07, 10/07, 09/07, 08/07, 07/07, 06/07, 05/07, 04/07, 03/07, 2/07, 1/07
12/06, 11/06, 10/06, 09/06, 8/06, 7/06, 6/06, 5/06, 4/06, 3/06, 2/06, 1/06,
12/05,11/05, 10/05, 09/05, 08/05, 07/05, 6/05, 5/05, 4/05, 2/05, 01/05,
12/04, 10/04, 9/04, 8/04, 7/04, 6/04, 5/04, 4/04, 3/04, 1/04,
12/03, 11/03 10/03 9/03, 8/03, 7/03, 6/03, 3/03, 10/02 , 8/02, 5/02
Current Issue of FOA Newsletter

Looking For a FOA-Certified Fiber Optic Installer? Use the FOA Installer Database  Free! Almost 1000 CFOT's listed. 
CFOT's register online to create your listing.

Contact the FOA

You can now renew your FOA certification online - and get an extra month free. Details here.

It's now CFOT®  
® (Certified Fiber Optic Technician) is now a registered trademark. With over 25,000 fiber optic techs holding CFOTs and the CFOT being recognized worldwide as the foremost certification in fiber optics, the FOA realized the value of the CFOT required trademark protection. Now it's official!

Broadband Benefits From US Economic Stimulus Plan

As we mentioned last month, the American Recovery and Reinvestment Act of 2009 includes funding for expanding broadband coverage in the US. The direct package has $7.2 billion devoted to expanding the reach broadband, with $2.5 billion handled by RUS, Rural Utilities Services (http://www.usda.gov/rus/), a department of the Agriculture Department, and $4.7 billion by NTIA, National Telecommunications and Information Administration (http://www.ntia.doc.gov/), a division of the Commerce Department. The RUS and NTIA must award all funds by September 30, 2010. Funds can be grants or loans, expanding the long term effects. Since RUS requires the money go to approved organizations, rural telcos are most likely to benefit. NTIA funds require the recipient to provide 20% of the project cost, so the telcos will be able to use it to leverage their capital expenditures.

Besides fiber backbones, wireless is an option in broadband, of course, and will be part of the likely infrastructure built using this program. But of the 10,000 or more jobs this program is set to create, many will benefit fiber optic techs.

This is not the whole of the benefits to communications. A major initiative is digital health records, with a necessity to connect medical facilities to high speed access also. That program starts with close to $20 billion.

Read more

FOA Updating Advanced & Specialist Certifications
The FOA has been reviewing all the certifications and updating those  which need it, generally for technical reasons.
This time around, we have updated the AFOT which has until now only been available through schools to make it available to CFOTs with at least one year of continuous work in the fiber optic field. CFOTs can apply for the AFOT if they have the experience and can take the test online with a proctor.
We are also updating the CFOS Specialist Certifications for Splicing, Connectors and Testing. They will be available to CFOTs who meet the experience requirements and take an online test or who attend one of the CFOS courses offered at several FOA-Approved schools.
A big advantage for those studying for AFOT or CFOS exams will be the use of the FOA Onlnie Reference Guide as a study guide for the exams. Watch for more info on the AFOT and CFOS certifications next month.

Do We Need a New Internet?
The term "Wild West" was how  Bob Metcalfe, co-inventor of Ethernet, described the Internet when we were on a panel together at ComNet a decade ago. (Complete with outlaws, robber barrons, land rushed, etc.) When the Internet was created, it was for the use of researchers and government personnel, not everybody. Security, therefore, was not an issue. Now serious consideration is being given to whether the current Internet can be “saved” from hackers, viruses and spam. Should we try to fix what we have or start over with some serious concerns over security?
Here is a NY Times article on what may be coming.

FOA Online Fiber Optic Reference Is Continually Expanding
And Adds "Google Custom Search"

The FOA Online Fiber Optic Reference Guide is now available for use. It's not complete - we expect it to never be "complete" but always expanding!  We want you to contribute and give us feedback on how we can make it better!

The new FOA Online Fiber Optic Reference website continues to grow. We're not just adding technical materials, but study guides to help you use it. Recently we added sections on FTTHpremises cabling (fiber, copper and wireless) and study guides for CFOT students, CFOTs wanting a refresher and anyone just wanting to learn about fiber optics. We also added a Instructor's Guide to assist teachers in understanding how the website relates to our textbooks and can be used in conjuction with or in place of textbooks and other references in class.

Wanted: Links To Technical Materials
Next, we're soliciting links from fiber optic manufacturers and other organizations that have created technical materials that would be of interest to our readers. If you have technical websites you want to share, go here for our guidelines for submission.

FOA Adds "Google Custom Search  to Tech Topics and Online Fiber Optic Reference Guide

custom searchThere's so much information on the FOA 
Tech Topics and Online Fiber Optic Reference Guide that even a well-organized Table of Contents isn't enough and when the material is always changing, an index is impossible to maintain. So the FOA is using the latest technology in search, Google Custom Search, which will allow you to search just the FOA Tech Topics and Online Fiber Optic Reference Guide for any topic you want to find more about. Try it!  

Go to  The FOA Online Fiber Optic Reference Guide.

Good Question! Tech Questions Worth Repeating

Q: Is there any convertor or X equipment that could transport 1 Gbps over standart MM FO cable 2 km.

A:For 850 nm we know of no solution for more than 1100 meters. We can select special OM4 fiber to make 1100 meters, but beyond that I think you will not find a solution. However, 1300nm is no problem and you will find many possibilities. Draka for instance offers our HiCap 50um fiber, which is optimized around 1300nm. I suppose our competitors must also offer comparable. (Thanks to Chappell Ryan of Draka Communications (http://www.draka.com/) for this answer.)

If I test a FO link from both sides, am I suppose to get the EXACT distance reading?
A Contractor is busy installing some FO systems.  The OTDR result from one side show 14,5189 km and on the same fibre from the other side his machine gives a result of 14,5577 km...  to me this is about 39 meters difference. I try and understand this.

A: Let's look at the numbers: The difference in readings is 14518.9 to 14557.7 or 38.8 meters. That's a difference of 0.27 percent. The resolution of the instrument is 0.1 m or 0.006 percent of the reading.

How does the OTDR measure distance of a length of fiber? It sends out a pulse and looks for the returned reflected pulse from the far end. It measures this round-trip time and divides it in half for the one-way time. It then multiplies that time by the speed of light in the fiber, defined by the effective index of refraction, something around 1.4675 (Corning SMF28, a typical fiber.)

The OTDR measurement depends on an accurate time measurement by the OTDR, knowing the speed of light in the fiber precisely and the techniques used to get and process that information.

What's the "accuracy" or "measurement uncertainty" of the instrument? Referring to the JDSU book on testing, typical OTDR accuracy is expressed as:

+/-time base error x distance +/- 1m +/-sampling resolution +/-index uncertainties.

The time base error can be 0.01 to 0.001%
The uncertainty of the index of refraction is about 0.1% to 0.01%

For this example
+/- 0.001% x 14518 m  = 14.5 m or 0.01% = 145 m
+/- 1m
+/-sampling resolution =? probably a few meters?
+/-index uncertainties. = 145 or 1450 m
Adding these up, we have a measurement uncertainty of at least 14.5+145+1=~160 m or as much as 145+1450+1=~1600 m

And that's applicable for repeatedly measuring the same fiber. From two directions, there may be differences on how the measurement markers are placed if done manually.

So the uncertainty of a 14,518.9 length measurement (+/-160 to 1600 m) is much larger than the 39 meter difference the instrument gave for bidirectional measurements.

The answer to your question, therefore, is the difference in the OTDR length measurements is due to the error inherent in making the measurement with an OTDR.

We're surprised the results were so close!

Everyone testing fiber optics should understand that every measurement has some uncertainty - whether you are measuring loss, length, wavelength, power, etc. Knowing that uncertainty is very important to interpreting the measurement. It's worthwhile to read and understand the issue of measurement accuracy covered in this page of the FOA Online Fiber Optic Reference Guide.

Worth Reading:

FREE Corning Video
Register for a free "At the Speed of Light" video.  Go to: http://www.corningcable-systems.com/privnet/fiberiq.asp?id=foan

JDSU Webinar series
JDSU has announced the See the Light webinar series, a four-part program designed for anyone involved in the installation, maintenance, and repair of fiber optic systems. It begins with fiber inspection and cleaning and then covers the basics of fiber testing. The webinar series then continues with the more advanced optical time-domain reflectometer (OTDR) and fiber local area network (LAN) testing challenges. More information on the series.

Interested In Fiber Optic Sensors?

Besides it's uses in communications, medicine and lighting, fiber is used for sensors. It began long ago with fiber optic gyros and chemical or acoustic sensors but has expanded to many more physical measurements. Now there's a website opticalfibersensors.org devoted to the topic. If you are involved with sensors or just want to know more about what they can do, check out this website.

IGI, a major market research and technology reporting company (the "Active Optical Cables" below)  is offering a a free one year subscription to one of our fiber optics newsletters to FOA members.  All they have to do is to send IGI an e-mail stating which newsletter they would like to get. See http://www.igigroup.com/nl.html for a listing of IGI Newsletters.

FOA Tech Topics - 
The new FOA reference website is now online. Check out the current Table of Contents. 

Coming soon to a network near you  - 40 and 100 gigabit/sec Ethernet!
The IEEE is already working on specs for
40 and 100 gigabit/sec Ethernet and have approved a number of new PMDs (that's standards-speak for Physical Medium Dependent - i.e. cabling). A summary of the proposals is on the updated list of network specs at http://www.thefoa.org/tech/Linkspec.htm
FOA Technical Bulletins
How do you design and manufacture fiber optic systems? Choose and install one to serve your communications needs? Troubleshoot problems? The FOA Fiber Optic Technical Bulletins will provide step-by-step guidelines to help you. All are PDF files you can download, print and use.
Designing and manufacturing fiber optic communications products for manufacturers.
Choosing, installing and using fiber optic products for network users.
Designing Fiber Optic Networks
Installing Fiber Optic Cable Plants
Troubleshooting fiber optic cable plants and communcations systems.
Fiber Optic Restoration

Online Videos
We continue expanding the Tech Topics section and have added some videos. These videos, in a format familiar to the "You Tube" users among you, cover cable prep, termination with epoxy/polish connectors, mechanical splicing and insertion loss testing.
You need Quicktime to view these videos which you can download free here from the Apple website.
Testing Update
Are there really 5 different ways to test optical fiber cabling after installation? Why so many? How do the measurements - and more importantly the measurement results - differ? What are the advanteages and disadvantages of each method?
Why are there 4 ways (maybe 5) to test fiber optic cables?
Do OTDRs and OLTS tests give the same results?
New Tech Topics
Updated link specs for fiber optic networks - now includes 10G Ethernet.
FAQs (Frequently Asked Questions) on General Topics and Testing
Fiber Or Copper? Making decisions, overview and LANs
How do you clean connections?

Product News

Sale on fiber optic test equipment

Used Test Equipment – Buy or Sell

Have you read the FOA Tech Topics on Cleaning?

More links on cleaning:


ITW Chemtronics

Cleantex Alco Pads



FTTH Notes:

Number of Countries with Significant FTTH Market Penetration Now at 20 as More European Countries Come on Line

The number of economies where fiber to the home has established a significant and growing market presence has nearly doubled over the past 18 months, according to an updated global ranking issued today by the FTTH Councils of Asia-Pacific, Europe and North America.
The ranking, issued twice a year since 2007, was released today at the FTTH Council Europe's annual conference in Copenhagen, Denmark.  It tracks the level of FTTH market penetration in economies where more than one percent of households are connected directly into high speed fiber networks.  In all, 20 economies met this threshold, up from 14 in July 2008 and 11 in July 2007.
The growth is largely due to the entry of several European countries in the ranking, as fiber to the home deployment begins to expand across that continent and the total number of FTTH subscribers in Europe approaches two million.
Asian economies maintained their leadership in FTTH market penetration, as South Korea (44% of the market), Hong Kong (28%), Japan (27%) and Taiwan (12%) continued to hold the top four places respectively.
Meanwhile, Japan remains the overall leader in terms of the number of fiber-connected homes at 13.2 million, followed by the United States (6.05 million) and the People's Republic of China (5.96 million).
For the first time, the Councils' ranking includes the breakdown for each economy between fiber to the home connections, where fiber is run all the way to individual residences, and fiber to the building (FTTB) connections for which the fiber terminates at a multi-unit dwelling and a non-fiber local area network (LAN) delivers service to the individual subscribers.  In addition, FTTB subscriber numbers have been added to the totals for the United States, which accounts for much of the substantial increase in that country's totals since the previous ranking in July 2008.  Copper-based broadband access technologies (DSL, FTT-Curb, FTT-Node) are not included.
The breakdown between FTTH and FTTB for each economy is depicted in the following chart:
Information from FTTH Council

September 2008 Update
About 13 million homes in the US are passed by fiber optics now - about 1 in 6. In spite of the economy, FTTx is carrying on and costs are decreasing.
FTTX 9-08
Graph from data by RVH in Broadband Properties Magazine. http://www.bbpmag.com/

Where is Verizon offfering FiOS service? See this map.
Want To Learn More About FTTx?
The FOA has created a special FTTx resources section of our website with a FTTx links page with lots of links to news, market reports, technical articles and vendor technical and product information. Here is a great place to start learning more about FTTx.
FOA's CFxT FTTx Certification Program Explained
Read the Broadband Properties article about the FOA FTTx certification program. Read the article about FOA President Jim Hayes being honored for his work promoting FTTH.


What Is The FOA?

Hear FOA President Jim Hayes tell the FOA Story in a 2-part interview by Sound & Video Contractor Contributing Editor Bennett Liles. It tells about the FOA history, goals and achievements.
Part 1: http://svconline.com/podcasts/audio/fiber_optic_association_part1/index.html.  
Part 2 http://svconline.com/podcasts/audio/inside-fiber-optic-association2-0924/index.html.

 Digging Safely

The old story (not a joke!) about the most likely fiber optic communications system failure being caused by "backhoe fade" reminds us that digging safely is vitally important. The risk is not just interrupting communications, but the life-threatening risk of digging up high voltage or gas lines.

There is a website called "Common Ground Alliance" that focuses directly on this issue. Here is how they describe themselves:

Damage Prevention is a Shared Responsibility
The Common Ground Alliance (CGA) is a member-driven association dedicated to ensuring public safety, environmental protection, and the integrity of services by promoting effective damage prevention practices.    In recent years, the association has established itself as the leading organization in an effort to reduce damages to all underground facilities in North America through shared responsibility among all stakeholders.

Of special interest is their "Best Practices" Manual, available for downloading. If you do OSP installs, please get yourself a copy and read it.


There is a new toll-free "call before you dig" number: 811

See www.call811.com for more information

National Fiber Optic Protection Summit: By the "811" group. March, 2008 in Vegas.


Download This!
There are tons of technical application notes and videos on the web, and occasionally we recommend some you should download. The JDSU fiber testing guide is really worthwhile, as are the ADC FTTx book and Westover video on fiber inspection and cleaning, linked below.

FREE Corning Video
Register for a free "At the Speed of Light" video. 
Go to: http://www.corningcable-systems.com/privnet/fiberiq.asp?id=foan
JDSU Testing Book
JDSU offers a free download of their Testing Guide from the Lightwave website. This is one great book which explains some basic fiber technology, but the real value is the last half which deals with OTDR testing. Not only does it give the usual info, but it covers important topics like measurement uncertainties and anomolies like ghosts and gainers.
I was in the testing business for 20+ years at Fotec and think this book is one of the best fiber optic testing texts available. It's complete but comprehenisble! I used to believe that premises techs did not need OTDR training, but now OTDR manufacturers are pushing their use in premises networks. Unfortunately, the limitations of OTDRs in premises applications can cause extreme problems for those who are not aware of their limitations. So knowing hows OTDRs work is essential information to every tech. 
Download yourself a copy and read it! http://lw.pennnet.com/whitepapers/wp.cfm?id=665
Westover Application Notes And Cleaning Video
Westover has several application notes on inspecting and cleaning fiber optic connectors. The video is a big file (50+MB) but a good tutorial.
Download page: http://www.westoverfiber.com/Support/downloads.php
ADC's Book On FTTx
ADC has an excellend book on FTTx. Here is a link to request a copy: http://www.adc.com/productsandservices/productsolutions/fttp/book/index.jsp

Job Openings

Installers/Teachers - Carribean
A telecom operator in the Caribbean is urgently in need of 2-3 technicians for some contract work in the Caribbean. Looking for certified, experienced, and hardworking installers to workon several outside splicing work, cable pulling, and premise installations.
Qualified persons should also be able to do hands on training for aspiring junior installers on job site. Bilingual (French and English) is a major plus.
Folabi Trillion ftrillion@gmail.com (US phone 610 295 0243)

Installers (1/09)
Carlson Construction Services, LLC., a DBE Certified Fiber Optics Contractor working out of the Atlanta area is seeking qualified fiber optic splicers and OTDR testing services for work throughout Georgia.

We are currently seeking:
4 qualified splicers
1 qualified OTDR technician

Please send all resumes and interest to:
Debbie Carlson
Vice President
PO Box 669547
Marietta, GA 30066

Or David Swales, Jr.
Project Manager

 Do listings in the FOA Newsletter Work? Here's David Swales feedback:

We did great!  We have over 15 interviews next week.

David Swales, Jr.

Sales (12/08)

Headquartered in Hayward, California, our client, a successful and profitable Fiber Optics company develops and sells advanced micro photonic solutions that are changing the way their customers operate worldwide. Their breakthrough Fiber Optic Products are based on fairly new technologies that help clients save time and money.

Systems/Sales Engineer – seeking experienced Engineer to sell Optical telecommunications equipment to carriers!
The Sales Engineer will support Sales Directors for pre-sale activities and sales related account management for existing customers.  Pre-sales activities may include completing RFP responses, evaluating customer needs (program and technical), performing the primary role of planning product demonstrations and evaluations (customers or trade shows). Post-sales engagement activities include account based product management to ensure that products are considered for purchase against competitive offers as well as for new applications.

 Required Qualifications:
* A minimum of a Bachelor's degree, preferably in engineering or computer science or equivalent.   
* Aggressive "can-do" attitude
* Previous sales engineering or support experience with optical networking equipment
* Knowledge of GMPLS/Control Plane protocols  (MPLS)
* Entrepreneurial skills
 * Five to ten years experience working as an equipment vendor interacting with customers in Business Development, Sales Engineering and/or pre-sales technical account management roles for lab trial and commercial deployment of network equipment.
* Experience working for small / privately held companies is a plus.

Pay: They pay a base with a quarterly and annual bonus based on percent revenue attainment.

The travel: 75% of time: 2-4 trips per month nationwide; 3-4 trips per year to Asia or Europe

Contact: Angela: diamondperl@gmail.com


Fiber Splicers - Canada (11/08)
Ledcor Contracting Career Opportunities
Under general supervision the Fibre Optic Splicer provides moderately complex work in fiber optics installation and maintenance, including performance and fusion splicing and testing. Ensuring the quality of buried and aerial optic facilities by overseeing the end result of contractor and/or in-house work and performing activation related duties.

Toronto and Calgary

Field Techs - Telecom and Cabling

FieldSolutions is the leading provider of quality field souring.
We have an immediate need for a field technician experience in TELECOM and CABLING to become a preferred technician.
This preferred technician will operate within a specific geography, there are openings for technicians nationwide.
The duration is ongoing- the requests last from 1-4 hours. The calls are paid hourly or at a flat rate depending on the nature of the call/ client.
PROJECT DESCRIPTION: Need a strong and flexible field tech to be a Preferred Tech for client to perform TELECOM/CABLING break fix work on a weekly basis.
This assignment is best suited for an easy going technician capable of taking on field related assignments with little supervision and off the cuff.
The tech should be able to handle something as basic as a punch down to the 66 block and as complex as a T1 installation and DMARC testing
TOOLS: Skills/Tools assessment checklist to be provided to potential candidates once established. Must have reliable vehicle capable of carry multiple parts. Must have unlimited cell phone plan as being contacted in the field for potential new calls is a must.
TECH REQUIREMENTS: Strong background in cabling and telecom type calls. Skills/Tools assessment checklist to be provided to potential candidates once established.
Sarah Jackson
Tel: 1.952.288.2512
Field Solutions
5775 Wayzata Blvd.
Minneapolis, MN 55416

Fiber Optic Splicing Technicians
Volt Telecom Canada is looking for some qualified Fiber Optic splicers to perform work in Alberta. Our first priority is in the Calgary, but there may be other locations throughout the province as well.
Successful candidates would require good experience in spicing underground and aerial fiber optic ribbon cables. Copper cable splicing skills would also be an asset. We are currently looking for individuals who have their own truck and tools and would be interested in becoming a independent contract to Volt Telecom. Volt telecom will provide the fiber optic ribbon fiber splicing equipment.
If you know of any of your association members who would be interested in leaning more about these opportunities please have them contact myself.
Jim Huff
Project Manager - Canada
Volt-Telecom Canada
Office - 780-962-6800
Cell - 780-868-0720
Fax - 780-962-6841


Also Check Recent Job Openings In Previous Issues of The FOA Newsletter


Tech Puzzler
What's a "FOCIS" document and why is it important?

Answer below

FOA Logo Merchandise
FOA has arranged with EmbroidMe to provide FOA logo merchandies. Identify yourself as a FOA-certified tech or instructor. The lab coats are super impressive for either cabling techs and instructors. Check out the selection.

FOA Certification Top Choice

The FOA CFOT and CFOS programs continue to gain momentum in fiber optics. Over 25,000 CFOTs have been certified by over 200 schools. Since our founding in July, 1995, we have dedicated ourselves to promoting fiber optics and professionalism in fiber optics personnel, focusing on education and certification. We are continuing to add new schools and more CFOTs as users of fiber optics learn that a CFOT is the indication of a professional, well-trained fiber optic technician. Now with FTTH (fiber to the home) finally taking off, demand for CFOTs is rising and schools are responding by expanding programs rapidly.
The FOA now has approved programs at 200+ organizations, welcoming new additions like the Joint Apprenticeship and Training Committee of the International Brotherhood of Electrical Workers, Corning Cable Systems and AFL (and their new acquisition "The Light Brigade" for their installation training programs and NASA's Goldstone Tracking Station. The complete list of FOA-Approved schools is at http://www.thefoa.org/foa_aprv.htm.


Understanding FOA Certifications
To answer questions on FOA certifications, we've created several new web pages:
Overview of FOA certifications
Training Requirements - What Schools Are Teaching
Reading these will help you understand what each FOA certification covers and how to prepare for them.

Your Name, CFOT - It pays to advertise!

The FOA encourages CFOTs to use the logo on their business cards, letterhead, truck or van, etc. and provides logo files on this site for that purpose. But we are also asked about how to use the CFOT or CFOS certifications. Easy, you can refer to yourself as "Your Name, CFOT" or "Your Name, CFOS/T" for example.

Feel free to use the logo and designations to promote your achievements and professionalism!


Remember To Renew Your Certification !

Remember to renew your FOA certification. All current CFOTs have a ID Card with their certification data and we keep a database of current CFOTs to answer inquiries regarding your qualifications if needed. You must be a current FOA member and CFOT to participate in our online database of installers, contractors, technicians and consultants. If you forgot to renew, use the online application form to renew NOW!

You can now renew your FOA certification online - and get an extra month free. Details here.



To Contact The FOA:
The Fiber Optic Association
1119 S Mission Road, # 355
Fallbrook, California 92028 USA
Office Hours 10AM-5 PM Pacific Time, Monday to Friday
Telephone: 760-451-3655
Fax: 781-207-2421
You can now renew your FOA certification online - and get an extra month free. Details here.

Want to write for the FOA Newsletter? Send us articles, news, anything you think might be interesting to the rest of the membership!

Return to The FOA Home Page

(C)1999-2009, The Fiber Optic Association, Inc.

Tech Puzzler:
A FOCIS document is an TIA/EIA term for Fiber Optic Connector Intermateability Standard. It is a component standard written for manufacturers to follow to insure that their connector will be intermateable with other manufacturer's connectors of the same type. They are published with a document number format TIA-604-XX.. See here for more information.