OTDR: Product-Specific Questions
Q: How do you setup the unit to tell it you have 2 or 3 splitters? A: To test through multiple splitters, multiply together the split ratios and set the PON Split Ratio to that value.
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Q: How do you setup the unit to tell it you have 2 or 3 splitters? A: To test through multiple splitters, multiply together the split ratios and set the PON Split Ratio to that value.
Technicians must setup the OTDR to test through MUXs (Not A PON) or Splitters (PON) because different test parameters are required to test through WDM versus Splitters.
EXFO has also developed innovative solutions such as automatic loss test sets, a PON power meter and the FTB-7300D OTDR—the first PON OTDR designed for measuring through splitters.
Bidirectional averaging testing is used for accurate splice loss measurement and is recommended in any type of application with singlemode point-to-point fiber links.
For those who have placed the splitter using a centralized architecture where a 1:32 splitter is located in one location in the OSP and all 32 subscribers are in alarm, then you can use an OTDR from your
Connectorized output fibers from the splitter modules will be mated in the distribution field or routed to and stored in the connector storage area of the subscriber/distribution panel for mating later
A central computer is used to control the operation of OTDR-like test components located at key points in the fiber network. The test components scan the fiber to locate problems.
With the FTTH-SLM (Smart Link Mapper) Application installed on your VIAVI OTDR you can test an entire fiber link and easily understand results. And this twice as fast and more reliable than any
Many FTTx systems use APC (angled PC) connectors to reduce reflectance so test cables for both OLTS and OTDR need to have matching connectors. However, once installed, users on a live
It is difficult to test splitters by OTDR, especially to test high ratio splitters like 1: 64 or 1:128.
These initial splices are to be tested uni-directionally with an OTDR at 1550nm. If the measured loss of a splice is greater than a 0.30 dB the contractor must break the splice, then re-splice the fiber/s until