In dialectal English the term lug has also been used, although the Oxford English Dictionary states that this unit, while usually of 16 + 1⁄ 2 feet, may also be of 15, 18, 20, or 21 feet. Surveyors rods and chains are still used in rough terrains with heavy overgrowth where laser or other optical measurements are difficult or impossible. The tool has largely been supplanted by electronic tools such as surveyor lasers ( lidar) and optical target devices for surveying lands. Both measures date from the sixteenth century, when the pike was still utilized in national armies. The measure also has a relationship with the military pike of about the same size. The name perch derives from the Ancient Roman unit, the pertica. An acre is therefore 160 square rods or 10 square chains. The 'perfect acre' is a rectangular area of 43,560 square feet, bounded by sides 660 feet (a furlong) long and 66 feet (a chain) wide (220 yards by 22 yards) or, equivalently, 40 rods by 4 rods. The rod is useful as a unit of length because integer multiples of it can form one acre of square measure (area). In British imperial and US customary units it is defined as 16 + 1⁄ 2 feet, equal to exactly 1⁄ 320 of a mile, or 5 + 1⁄ 2 yards (a quarter of a surveyor's chain), and is exactly 5.0292 meters. The rod, perch, or pole (sometimes also lug) is a surveyor's tool and unit of length of various historical definitions. So, we made this extremely simplified diagram to help you visualise how they all work together to bring your full fibre network to your door.Not to be confused with a surveyor's pole, upon which a survey instrument is mounted a ranging rod used for sighting or, a level staff, which may also be called a leveling rod. We refer to installing cables, routes and feeder lines a lot in our build updates. Leave a comment on this blog post if there’s any other words you can think should be added!Ī guide: the cables we use to build full fibre broadband networks We measure losses through these events using three different wavelengths of light to industry defined parameters.Ī wayleave is a contractual agreement between a landowner or landlord and a telecommunications provider, where the landowner grants the network provider a licence with the right to access land and/or property, to install and/or maintain electronic communications apparatus. We use specialised equipment to interrogate the key components and events, such as a fusion-splice or mated pair of connectors. They provide protection and help to organise the cables, allowing full fibre to pass through the route uninterrupted.įibre testing refers to the process of validating the integrity of our newly installed fibre optic network. Subducts are small, lightweight tubes used to house fibre optic cables. This is how we determine the condition the ducts and find blockages that we may need to repair ahead of our fibre optic network installationĪ splitter is a device used to split a cable signal into two or more routes, enabling the fibre to be distributed into a number of different routes to get to the property. Rod and Roping is the act of proving the integrity of existing underground ducting. Primary and secondary nodes are integral parts of a full fibre network. Each area’s cabinet is connected to the IXP by a leased line.Ī node is a redistribution point, it can also be a communication end point. They can sometimes be known as a private circuit or private data line. It’s like the mothership of telecommunications distribution!Ī leased line is a private telecommunications circuit typically used by businesses. It’s also the place where we (FACTCO) connect each area’s cabinet to. This is a physical location where internet infrastructure lives. We use a feeder cable as a route from the network cabinet to the primary node, It includes excavation, laying of new infrastructure and backfilling. We hold our technical kit in there and have to connect a leased line from an internet exchange point and power it up so it can feed our networks.Ĭivil construction takes care of things such as roads, bridges, buildings, tunnels, and railways. The cabinet its owned by us and installed locally to our networks. The machine uses highly pressurised air to push it forward, essentially blowing the fibre through the feeder routes. When a machine is used to float fibre optic cables throughout the duct/cable. Jaron buster: a helpful dictionary! Blowing fibre We’ve made this jargon buster dictionary which we hope will help you understand more about what we do. The world of telecommunications, construction and full fibre broadband is packed with jargon, and it’s not always easy to figure out how to make sense of these terms. Jargon is technical, specialised language used by people in a particular industry. Jargon buster: building full fibre broadband networks and the world of telecomms
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