When your network is down, every minute costs money. Speak directly to a lead diagnostic engineer—no phone trees, no guesswork. Just rapid deployment to your Los Angeles facility
When a commercial network drops, IP cameras go offline, or an access control door refuses to lock, the standard approach for many contractors is to simply guess. They reboot switches, blame the software, or run temporary “band-aid” cables over ceiling tiles, leaving you with a disorganized, hazardous mess. We do this differently.
Global Low Voltage treats troubleshooting as an exact science. We don’t guess; we test. We deploy enterprise-grade diagnostic equipment—including Time Domain Reflectometers (TDR) and Fluke network certifiers—to isolate the exact point of failure.
Whether your network is suffering from Electromagnetic Interference (EMI) caused by high-voltage lines, a fiber optic backbone was accidentally severed, or a 24V power supply for your magnetic locks is failing, we find it. We tell you exactly where the fault is, often down to the exact foot behind the wall.
Every repair ends with proof. We don’t just fix the wire and walk away; we certify the repaired drop to ensure it meets strict TIA/EIA industry standards, handing your IT department the documentation they need to guarantee maximum bandwidth and system health.
We utilize enterprise-grade Time Domain Reflectometers (TDR) and Fluke network testers to pinpoint the exact location of cable breaks or signal loss behind your walls, eliminating destructive guesswork.
Abandoned, disorganized cabling is a major fire hazard and code violation. We safely trace, identify, and remove dead cables ("spaghetti") while meticulously organizing your active infrastructure.
Are your data speeds mysteriously slow? We diagnose and fix Electromagnetic Interference (EMI) caused by data lines running too close to high-voltage electrical, restoring your gigabit bandwidth.
Because we are a design-build firm, we understand how systems interact. We can troubleshoot complex issues where your IT network, access control, and surveillance systems fail to communicate.
If a previous contractor left you with fire-stopping violations or non-plenum rated cables in your HVAC returns, we remediate the infrastructure to pass strict LAFD and Title 24 inspections.
After repairs are completed, we don't just walk away. We provide comprehensive diagnostic reports proving that your restored cable drops meet strict TIA/EIA industry bandwidth standards.
Re-terminating faulty Cat5e/Cat6/Cat6a keystones, replacing damaged patch panels, and repairing crushed or severed copper lines to restore maximum local network throughput.
Emergency repair of severed single-mode and multi-mode fiber optic backbones. We utilize precision fusion splicing to restore your connection with near-zero optical insertion loss.
Total transformation of messy MDF/IDF server closets. We untangle, re-route, color-code, and label your patch cables, installing proper vertical and horizontal wire management.
Diagnosing unresponsive card readers, repairing broken magnetic locks (maglocks) and electric strikes, and fixing failing power supply units or bad fire-alarm relays.
Resolving pixelated video, offline IP cameras, and faulty Power over Ethernet (PoE) switches to ensure your physical security perimeter is fully operational.
Troubleshooting HDMI signal drops, repairing blown 70v commercial audio zones, and fixing connectivity issues in corporate boardrooms and paging systems.
We start by understanding the symptoms—whether it's intermittent Wi-Fi drops, a dead door reader, or a complete network outage—and review any existing network diagrams you have.
A lead technician performs a visual inspection of your MDF/IDF server rooms and endpoint devices to identify obvious physical damage, poor terminations, or immediate code violations.
We deploy specialized testing equipment to map the wire, check for continuity, measure insertion loss, and identify exactly where the signal is degrading (e.g., "Fault located 42 feet down the line").
Once the fault is isolated, we execute the repair. This may involve re-terminating a bad jack, fusion splicing a broken fiber, or pulling a new, code-compliant cable drop.
We re-test the repaired line to certify it meets maximum bandwidth standards. You receive full documentation of the fix, ensuring your IT team has confidence in the restored infrastructure.
Intermittent drops are often caused by poor cable terminations, exceeding the 100-meter length limit for copper Ethernet, or Electromagnetic Interference (EMI). EMI occurs when low-voltage data cables are run parallel and too close to high-voltage electrical lines (like 120V Romex) without proper shielding, causing the data packets to become corrupted.
A Fluke test uses highly specialized diagnostic equipment (manufactured by Fluke Networks) to certify that a cable drop meets exact TIA/EIA telecommunications standards. Unlike a simple $20 continuity tester that just checks if a wire is broken, a Fluke tester measures bandwidth capacity, crosstalk, return loss, and exact cable length, providing a definitive pass/fail grade for enterprise networks.
Cable abatement is the process of identifying and removing old, abandoned, or unused low-voltage cabling from drop ceilings and walls. Under the National Electrical Code (NEC), abandoned cables that are not tagged for future use must be removed because the plastic jacketing represents a significant fuel source and toxic smoke hazard in the event of a commercial building fire.
Yes. If a fiber optic backbone is accidentally cut during construction or remodeling, we can perform a mechanical or fusion splice. Fusion splicing uses a specialized laser tool to melt and weld the broken glass strands back together, restoring the data connection with minimal signal loss (attenuation).
This usually indicates a voltage drop or a failing power supply. Over time, poorly gauged wire run over long distances can lose voltage. If a 12V or 24V electric strike or maglock isn’t receiving its full required power, it may make a clicking noise but lack the magnetic force or mechanical strength to disengage. We use multimeters to trace the voltage drop and replace the faulty power supply or wiring.
