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Browse technical resources about OPGW, ADSS, and substation communication systems for smart grid and distribution automation.

  • Method for removing red and green switches from the distribution box

    Method for removing red and green switches from the distribution box

    Use a screwdriver to remove the switch plate cover, then unscrew the switch from the electrical box. Disconnect the wires from the old switch and connect them to the new switch, following the manufacturer's. I currently have 4 switches controlling an outside light (one at each door leading to the patio). As I have replaced the outside light with a Philips Hue, I wish to only have 1 switch. After some research the circuit I have is wired like this. Removing a modular switchboard is not that hard. This is a tricky part of the project & if you've never done this before I'll wager that you didn't even think it was possible to remove an existing outlet box or light switch box.


  • Why are the fiber optic pigtails for broadcasting green

    Why are the fiber optic pigtails for broadcasting green

    Why are some fiber optic connectors green and others blue? Connector colors indicate the polish angle of the fiber end-face, which is critical for safety and performance. Without pigtails. By adopting the TIA/EIA‑598C standard, you gain a universal “language” of colors that speeds identification, reduces miswiring, and enhances safety across cable jackets, connectors, buffer tubes, and splice trays. These colors are not just aesthetic choices; they indicate specific features and functions of the connectors. This article delves into the significance of green and blue fiber ends, exploring their differences. When you build or upgrade a fiber network, the same four words pop up everywhere— fiber optic (bare fiber), pigtail, patch cord, optical cable. Mixing them up drives costs higher, increases loss, and slows your rollout. The connector side is used to link the equipment, while the other side is melted together with the fiber optic cable.

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