AN-126 Measuring Accurate Return Loss through Optical Components Overview Often, return loss is measured as though it is a metric that is completely independent from the other qualities a cable possesses. In reality, this is a valid train of thought for the true return loss of a connector, but a connector’s measured return loss is […]
AN-115 Referencing Return Loss Using the MTP Reference Reflector It is not uncommon for a tester to find themselves attempting to test return loss on an MTP connection, but find themselves unable to reference to the correct location. Sometimes this is due to dust or oil contamination or physical damage on the endface of the […]
AN-114 RL Testing for APC Terminated Cables Overview When referencing return loss, the OP930 scans a length of fiber and looks for a large reflection (~14dB or a 4% reflection). However, a reference cable that has an APC endface will not give a reflection large enough to trigger the OP930 to reference. To fix this issue […]
AN-111 Measuring IL/RL on Hybrid Cables Overview Testing simplex cables with unmatched connector types poses difficulties because the cable cannot simply be turned around to test the reverse direction. While hybrid bulkheads (SC-FC, ST-FC, etc.) are one option that can solve the problem with only minor issues, in some circumstances hybrid bulkheads will not provide […]
AN-110 Insertion Loss | Return Loss on Short Cables Overview Units using the pulsed (OTDR) method have a specific resolution that has trouble distinguishing pulses less than 2.0m apart. For measuring RL on these cables, one needs to employ a mandrel (single mode only), matching gel, or a matching block to the far end connector […]
AN-109 Verifying Continuity with fiber Overview OPL-MAX has a built in sequence to test continuity for multi-fiber cables. The only requirement is that the user has a multichannel source and a multichannel power meter.
AN-108 Test Procedure for SC-LC Hybrid Cables (OPL-PRO 930) Overview Testing duplex cables with unlike connectors can be both time consuming and messy without the proper procedure. The following test procedure will show how to best test duplex cables with unlike connectors—in this case, LC-SC—as well as having an organized and in-depth test report created through […]
AN-104 MTP-MTP Insertion Loss/Return Loss Testing with OPL-Max Overview There are three methods to measure an MTP-MTP patch cord. The first involves using the large area detector or integrating sphere on the OP930. The second method uses a launch and receive cable and reference insertion loss individually per channel through an OP710 Multichannel Power Meter. […]
You will be utilizing your laptop, your standard MTP cleaner, the test cable you will be testing, stand-alone scope, your MTP to MTP mating adapter, your HPR-MTP reference cable, your OP930 multimode switch unit and your RIN10 power meter.
AN-101 Bar Code Scanning Overview In the fast-paced production lines where fiber optic cables are made, every second saved is a penny earned. In an effort to help reduce production time related to re-typing serial numbers and part numbers, OptoTest has integrated the functionality of a bar code scanner. This application note will briefly describe […]