3/25/2023 0 Comments Fluke networks![]() ![]() – Industrial network product and news channel from Control Engineering. ![]() – Fluke: How to improve industrial network health at 3 levels Learn how an Fluke Networks HDTDR – DTX CableAnalyzer works at 11, 2009, session at Automation Fair in Anaheim, CA, an event sponsored by Rockwell Automation. OM3 fiber can support 10GBASE-S to 300m, and new OM4 fiber can go 550m, but do the math, because performance requirements can vary widely depending on the application. Be careful not to add loss during network design. – Dirty connectors can create cross contamination with mated connectors.ġ0. – Hybrid cleaners evaporate more quickly, are more aggressive for cleaning, and have antistatic properties and – Among common cleaning errors is use of isopropyl alcohol less than 98%, which can leave residue and dirt A fiber video microscope can show how bad a fiber end face is. A simple fiber scope shows the fiber end face. Ethernet fiber requires careful cleaning and inspection for top performance. Remember, just putting a hand into the back of a panel can crack a fiber cable a visual fault locator can locate a break or bend.ĩ. – Reflectance measurements aren’t required in the standard, but -35 dB is good value to start. – Best: Factory terminated connectors have less than 50 nm reflectance and – Better: Pre-polished factor terminated connectors Over polishing can create an air gap causing errors on the network. Field termination and polishing can vary widely in quality, depending on installer skills. – Field polishing fiber-optic cable can create many errors. Most communication challenges are not in the cable, but in the connectors or termination points. The higher value caused significant network errors, due to an M12 connection to a patch cord, causing a problem for the connected robots in the automotive industry.Ĩ. Note: In one troubleshooting example, readings showed 25.1 Ohms versus 6.7 Ohms. DTX Cable Analyzer can compare measurements with limits found in 100Base-TX IEEE 802.3 for example dc resistance isn’t a requirement, and although the value is recorded, there is no PASS/FAIL criteria. With time, the lubricant will cure, and the insertion loss will improve.ħ. Dramatic failures on insertion loss only are a lubricant issue. Lubricants used for pulling wire through conduit can create failures when testing immediately. Installation materials may appear to affect cabling performance. The network design must account for that.Ħ. The standard doesn’t allow changes in the test limits. As temperature increases so does insertion loss: There’s a 0.4% increase in loss per deg C. Higher temperature can decrease reliability. Then, up to 10 m (33 ft) of equipment and user patch cords can be used.ĥ. ANSI/TIA-1005 standard says stay within a 90 m (295 ft) run of solid cable. A cable run of 100m may not be reliable, if it uses many patch cords. Patch cables can have up to 50% more insertion loss than solid cable. Reduce cable return losses: Avoid water in the cable, Fluke Networks advises.Ĥ. ![]() For instance, twisted pair cables need to be twisted right up to the M12 connector to avoid crosstalk issues. In tough situations, a customer support engineer can analyze the report information and let you know if it suggests a connection or cable issue. Using advanced diagnostics like, Fourier analysis, one can isolate whether the challenge is within a connection or the cable. Use the appropriate test equipment to collect information from the network. His 10 industrial networking troubleshooting tips follow for copper (twisted pair) and fiber optic cabling networks.ġ. Young offers some concrete advice to avoid network communication difficulties, and troubleshooting tips for when cabling trouble occurs. Industrial networks can encounter communication difficulties, and Adrian Young, senior customer support engineer with Fluke Networks, helps correct network communications challenges. Cable termination: Maintain the twist into the back of all connector types, says Fluke Networks, to reduce crosstalk and return losses. ![]()
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