Testing Optical Fibre Cable – New Parameters for in Premises Networks
With an increase in the adoption of Fibre-based local area networks (LANs), there is an urgent need for installers to be educated on the best Fibre test methods as well as clarify to them some misperceptions. New test instruments are also crucial when it comes to ensuring functionality of Fibre cabling in this day and age.
Based on a research that was conducted by 3M, there are currently an estimated 77% of LAN installers who are currently using the wrong test method in the premises that they are operating or working on. The rapid deployment of performance based protocols such as the Gigabit Ethernet combined with the rapid growth of Fibre based LANs leave installers with a very short margin for error in the loss budget to effectively accommodate inaccurate test results. That said there is a move to adopt multi-gigabit technologies as well as high strength Fibres that are pushing Fibre bend radii down to an inch.
With these new developments, one can highly attest to the importance of Fibre LAN-test accuracy and consistent test practices across the industry. It is crucial for the effects which are bound to result from the use of new application standard such as Gigabit Ethernet together with testing methods to be clearly outlined.
However, this means of building test method does not necessarily need similar type of connector on the tester similar to that one which is tested in networks; this is due to the fact that the two jumpers which are used for referencing allow for the use of hybrid patch cords. This test also provides us with a flexibility of being able to test Fibre links with any type of connector, regardless of the connector on the tester. Despite it being a modification of the TIA-568A test recommendation, this approach has been endorsed by SFF connector manufacturers when it comes to the testing of SFF connector links.
Other testing considerations
- Point-to-point identifiers and direction of the test (e.g., outlet number to telecommunications room number).
- Test method used.
- Manufacturer, model number, serial number, and date of last calibration of the test instruments.
- Date of testing.
- Person conducting the test.
- Application standards checklist.
Test instruments for the premises
Another requirement is the ability to measure given parameters with a vertical-cavity surface-emitting laser as well as light-emitting diode so as to be able to verify Gigabit Ethernet performance. Given the fact that OTDR’s are usually used when it comes to troubleshooting, a light source which is usually visible and it is embedded in the unit also works to the installer’s advantage.
Fibre Optical Testing & Measurement Equipment
The TS21 Fiber Scout was designed and developed by Yamasaki as a cost effective and simple solution for identifying faults and testing the length of singlemode fibers. This lightweight, rugged, dustproof and water resistant piece of test equipment can list up to 8 results at one time and has three brilliant functions. Despite the fact that OTDR’s usually continues to measure Fibre length together with the location as well as the severity of events, the results ought to be reflected or displayed in a graphical manner with an automated adjusting of the race in a table format and a screen. See there website for more details – Yamasaki Fibre Optic Test & Measurement Equipment.
The Yamasaki TLU Series Intelligent Laser Source is the latest design in Multiple Wavelength Fiber Optic Light Source technology. The available wavelengths include 850,1300nm for Multimode and 1310,1490, 1550nm and 1625nm for Singlemode. It can Generate Wave ID and Tones and the output power is easily adjustable
With Fibre-optic testing requirements changing from time to time new and different test equipment and procedures are needed during cabling in a given premise. That said test equipment should be able to accommodate the access-provider method as well as the buildings approach. In conclusion an adaptive approach which will see you use an additional test jumper is highly recommended when it comes to testing SSF connectors and for testing cabling setups which may involve different connector types. Accurate measurements of link performance for a multi-Gigabit or a Gigabit Ethernet over Fibre can be achieved by acquiring a great awareness of this test methodology.
Testing Optical Fibre Cable – Should you have any further questions feel free to contact our friendly, knowledgeable staff at Anderson Corporation.