To block unauthorized access to switch ports, switches support a feature called port security. This feature allows you to configure which devices are allowed or blocked on each port. This number is the total of available MAC addresses, including those used for other Layer 2 functions and any other secure MAC addresses. Learn how to configure port security on Cisco switches to prevent unauthorized network access and pass your CCNA 200-301 exam.
Read More
The equation below can be used to estimate the split ratio and insertion loss for a typical split port. SR=Pi/Pt×100% IL= -10xlog (SR/100)+Гe where IL = splitter insertion loss for the split port, dB Pi = optical output power for single split port, mWThe splitter ratio in fiber optic networks refers to how optical power is distributed among the output ports of an optical splitter. By dividing a single optical signal from a central Optical Line Terminal (OLT) into multiple outputs for Optical Network Terminals (ONTs) at users' homes, splitters eliminate the need for dedicated fibers to each residence—slashing infrastructure costs while scaling network reach. Optical splitters play an important role in FTTH PON networks where a single optical input is split into multiple output, thus allowing a single PON interface to be shared among many subscribers. in Watts – W), the loss value in dB is calculated by the formula: Loss (dB) = 10 lg ( mW1 / mW2 ) When both gains are equal, the loss is 0 dB, so there is no loss (doesn't happen obviously).
Read More
This comprehensive guide explores the role of ADSS anchor clamps, their design, how to choose the right model, step-by-step installation, and real-world use cases. Designed specifically for All-Dielectric Self-Supporting (ADSS) cables—fibers encased in a dielectric (non-conductive) jacket—these clamps secure cables to utility poles, towers, and other aerial structures, preventing sag, damage, and signal loss. Installation works shall be accomplished according to the general guidelines for fibre-optic cable and connectors. Fiber optic cable clamps are devices used to secure and stabilize fiber optic cables in a wide range of applications, including telecommunications, data centers, and network systems. The cables are stable and easy to maintain under the grip thanks to the ultimate tension.
Read More
A fiber optic channel system is a cable management solution that allows fiber optic cables to be routed, protected and kept organized safely. The CMS011 Zip-Tie-Style Cable Ties (supplied in bags of 100) are releasable and are typically. A Cable Routing System is a collection of channels, fittings, and mounting brackets that can be assembled to create a structure that protects fiber optic and high performance copper data cabling from physical damage that can disrupt or cut off signal transmission. Rack Height (U Spaces) is a measure of vertical space or the height of equipment mounted in a rack enclosure. Note how the plastic strain-relief grips between the metal barrel of each connector and each orange-jacketed cable are color-coded (one white, one black) for easy.
Read More
A junction box must be rigidly fastened to a structural member or supported by a listed mounting system. 23 allows several methods: direct attachment to framing (studs, joists, rafters), adjustable bar hangers that span between framing members, and listed support. This is a critical step in any electrical installation as it ensures the box, which houses and protects wire connections, remains stable and accessible. What do I do to not make it look strange? "I'm going to cut into the wall beside the stud tomorrow" Be sure you turn off the circuit for the room now, as there may be a fire risk. Learn what the NEC requires for junction boxes, from box fill calculations and grounding to outdoor use and fire-rated wall installations.
Read More+27 10 247 8396
Unit 7, Summit Place, 21 Summit Rd, Midrand, Johannesburg, 1685, South Africa