Video #: C1006	Duration: 14:37	File Size: 285.2 MB	File Type: MP4
Description: Covers the basic concept of setting a reference for optical loss testing, and the different reference methods used to set a reference.
Pause the video after each objective to answer the review questions below.
QUIZ #1 Q1: The transmitter used for testing fiber cables is called a _____ _____. A1: Light source Q2: The receiver used for testing fiber cables is called a(n) _____ _____ _____. A2: Optical power meter Q3: The starting value of a measurement is called a _____ _____. A3: Reference point Q4: In fiber optics, the process of setting a reference is called _____. A4: Zeroing QUIZ #2 Q1: Light sources are referenced to what power level? A1: One milliwatt Q2: Light sources <1 milliwatt have _____ dBm values. A2: Positive Q3: Light sources >1 milliwatt have _____ dBm values. A3: Negative Q4: Light sources exactly at 1 milliwatt are _____ dBm. A4: Zero Q5: If light source power = reference power, the dB value is _____. A5: Zero QUIZ #3 Q1: The brightness of a light source is called _____ _____. A1: Optical power Q2: The difference between the reference level and the measured power is called _____ _____. A2: Optical loss Q3: Setting a reference with an optical power meter is also called _____. A3: Zeroing Q4: Comparing two dBm values will result in a new measurement unit called _____. A4: dB QUIZ #4 Q1: The way that reference cables are connected together is called a _____ _____. A1: Reference method Q2: How many reference methods are definded by the TIA-526 cabling standard? A2: Three Q3: What are the three reference methods called? A3: 1-jumper, 2-jumper, 3-jumper Q4: Which reference method is most often recommended by cabling standards? A4: 1-jumper QUIZ #5 Q1: How many patch panels are installed in the most common link configuration? A1: Two; one on each end Q2: Why is the one-jumper reference method recommended over 2-jumper? A2: Less measurement error, and better measurement accuracy Q3: Can the one-jumper method be used on a link with only one patch panel? A3: Yes, if the open connector can directly connect to the power meter. Q4: What is another name for a link with no patch panels? A4: Home run cabling

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Optical Wavelength Laboratories, Inc. dba Omni Wavelength Laboratories

OWL manufactures a complete line of fiber optic test equipment for a wide range of applications, including telco, WAN, MAN, LAN, SAN, CATV, IT, manufacturing, and laboratory. OWL's complete line of fiber optic testers have capabilities ranging from simple optical power and optical loss measurement to complete standards-based fiber optic link certification for both multimode and singlemode fibers, including 10-Gigabit Ethernet! Product lines include: optical time domain reflectometers (OTDR), optical power meters, light sources, talk sets, optical length testers, visual fault locators and serial plastic fiber transceivers. All OWL optical power meters and light sources are NIST traceable. For more information or for assistance in choosing the right fiber optic test equipment for your needs, send us an information request and we would be happy to assist you.