LC to LC duplex fiber loss testing with OptiFiber and DTX-xFM2 adapters
This article will guide you through the setup process for making an optical loss measurement on an LC to LC duplex link using the OptiFiber Modules OFTM-5612B/OFTM-5732 along with a DTX-xFM2 adapter.
To make this measurement, you will need two sets of hybrid PRECISION HIGH QUALITY PATCH CORDS, two LC Interchangeable Adapters, mandrels when using the DTX-MFM2, cleaning supplies and a fiber end face inspection device.
Doing this permits true Method B testing (1 jumper reference). LC interchangeable adapters are an option and must be ordered separately.
Before you start, clean AND INSPECT all end faces of your test reference cords using a fiberscope. Failure to do so will result in erratic readings. You should inspect and clean the test reference cords every 24 to 48 tests and reset the reference if needed. 왜 그렇습니까? You can pick up debris from the connectors you are testing. You can easily become a victim of cross contamination where you damage the connectors you are testing and your test reference cords. Of note, the test reference cords shipping with the DTX-xFM2 are of precision quality with hardened end faces - specifically made for multiple insertions.
To make this measurement, you will need two sets of hybrid PRECISION HIGH QUALITY PATCH CORDS, two LC Interchangeable Adapters, mandrels when using the DTX-MFM2, cleaning supplies and a fiber end face inspection device.
The modules have interchangeable connectors on the inputs. You will need to change the standard SC interchangeable adapters for LC interchangeable adapters:
Doing this permits true Method B testing (1 jumper reference). LC interchangeable adapters are an option and must be ordered separately.
NFA-LC
(Includes 2 adapters)
Before you start, clean AND INSPECT all end faces of your test reference cords using a fiberscope. Failure to do so will result in erratic readings. You should inspect and clean the test reference cords every 24 to 48 tests and reset the reference if needed. 왜 그렇습니까? You can pick up debris from the connectors you are testing. You can easily become a victim of cross contamination where you damage the connectors you are testing and your test reference cords. Of note, the test reference cords shipping with the DTX-xFM2 are of precision quality with hardened end faces - specifically made for multiple insertions.
- Press the SETUP key and go to the Loss/Length tab:
- Select the standard you wish to test against, in this example TIA-568-C Multimode. Make sure the TEST METHOD is set to 1 Jumper and the Connector Type to LC. This will ensure the help screens provide the correct information if needed.
- The NUMBER OF ADAPTERS is the number of mated connections added after you set the reference per fiber strand. Using this 1 Jumper method, a fiber link consisting of a patch panel connected to a patch panel would have an adapter count of 2.
- If you have verified the quality of your test reference cords, you can begin setting a reference.
- 중요: Always replace the caps on the fiber connectors whenever they are not inserted into the OptiFiber or DTX Smart Remote. This will prevent dust/dirt adhering to the end faces resulting in sporadic/negative loss readings
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Connect Duplex 1 as shown below: (Insert the SC into the OptiFiber OUTPUT port and never remove it)
- Connect Duplex 2 as shown below: (Insert the SC into the DTX Smart Remote OUTPUT port and never remove it)
- Press the FUNCTIONS key on the OptiFiber and highlight Set Loss/Length Reference.
- Press the ENTER key:
- Press the TEST key to set the reference. When complete you should see something similar to this:
If you are using 62.5/125 µm with the DTX-MFM2, you should expect a value better than -20.00 dBm.
If you are using 50/125 µm with the DTX-MFM2, you should expect a value better than -24.50 dBm.
If you are using the DTX-GFM2 or DTX-SFM2, you should expect to see a value better than -8.00 dBm.
참고: -24.00 dBm is better than -24.50 dBm
Values within these ranges do not guarantee your test reference cords are clean. You must continually inspect and clean your test reference cords to avoid negative loss readings.
- You can enter the length of your test cords here for documentation purposes. Otherwise, press the F3 key OK.
- Remove the LC plug from the INPUT port on the OptiFiber:
- Remove the LC plug from the INPUT port on the DTX Smart Remote:
- Connect the LC plug from Duplex 1 to the INPUT port of the OptiFiber:
- Connect the LC plug from Duplex 2 to the INPUT port on the DTX Smart Remote:
- You are now ready to connect to your link to test.
- Connect the DTX Smart Remote with Duplex 2 to End 2 of your fiber link:
- Connect the OptiFiber with Duplex 1 to End 1 of your fiber link:
- Press the FUNCTIONS key.
- Highlight Loss/Length and press the ENTER key.
