Page 31 of the DSE Networks & Infrastructure knowledge center, with source-backed guidance and practical next steps.
Guidance for resilient networks, Wi-Fi, firewalls, cabling, power, exposure reduction, and connected-device planning.
NWS says no place outside is safe during thunderstorms, and an OSHA and NOAA fact sheet says employers should put a written lightning safety protocol for outdoor workers in their emergency action plan, covering warnings, safe shelters, response times and when to suspend and resume work. NWS says to stay sheltered 30 minutes after the last thunder.
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CISA and eight partner agencies published OT asset inventory guidance on August 13, 2025. It describes defining scope, physically and logically surveying assets, collecting 14 high-priority attributes, classifying by criticality or function, and managing the inventory through each asset’s life cycle.
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SonicWall ended support on April 16, 2026 for SOHO, SOHOW, TZ 300P, NSa 9250/9450/9650 and Gen 6 NSv virtual firewalls, and on August 1, 2026 for TZ 400, TZ 400W, TZ 600, TZ 600P, NSa 3600 and NSa 3650. End of support means no firmware updates, technical support or replacements.
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The Wi-Fi Alliance makes WPA3 mandatory for Wi-Fi CERTIFIED devices and requires Protected Management Frames on all new certified devices. WPA3 disallows outdated protocols, and Wi-Fi Enhanced Open encrypts traffic on guest networks without a shared passphrase.
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Since February 1, 2024, Gmail requires all senders to authenticate with SPF or DKIM, have valid forward and reverse DNS, use TLS and keep spam rates below 0.3%. Bulk senders of over 5,000 messages a day also need SPF, DKIM, DMARC, alignment and one-click unsubscribe.
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FAR 52.204-25 implements Section 889: contractors may not provide the government systems built on covered Huawei, ZTE, Hytera, Hikvision or Dahua equipment, agencies may not contract with entities that use it, and contractors must report covered equipment within one business day of finding it.
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OSHA lists underground vaults, manholes and pits as confined spaces. Before cabling or fiber crews enter one, the employer must have identified whether it is permit-required, and entrants need training, a permit, atmospheric testing and continuous contact with an attendant.
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OSHA’s construction ladder standard sets concrete rules that low-voltage installers use daily: rails 3 feet above a landing, a one-quarter setback angle, nonconductive rails near energized equipment, no standing on the top step, three-point climbing and tagging defective ladders out of service.
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CISA’s November 2025 detection guidance separates drone detection from counter-drone mitigation, compares acoustic, camera, radar and RF sensors, and asks buyers to get legal review, check false-positive rates and fit detection into existing security plans.
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Contaminated fiber end faces cause loss and reflections and can dirty equipment ports. The 2022 edition of IEC 61300-3-35 simplifies the workflow: clear the contact area, grade only the core and cladding, and let passing loss tests decide.
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