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Like lots of things in telecomms, the complex is made simple through defined and shared standards, combined with steady and patient work.
A 40-pair underground cable can look frighteningly difficult to terminate. However, each group of ten pairs is identified by a thin pvc band within the main sheath.
Then, within that ten pairs, there are two sets of "base colours". Then, within those base colours, there are key (band) colours of blue, orange, green, brown and slate (grey). With me so far?
Work slowly and calmly, separate each group with a cable tie (cheap, nasty, and horrible blue ones in this case). Et voilà ! All ready to terminate.
I watched a 40-year telecomms veteran work through a 200-pair cable like this one morning at Loughborough on the Great Central Railway, and learnt much from his almost monastic calmness and knowledge of "the craft".
Oh, and I did this particular cable as practice one Saturday morning in order to prepare for when I might need to do this as part of "the day job" in the field. As well as actually managing to complete something on a weekend of "bitty" and potentially uncompleted jobs. And avoid starting said jobs...
The main cables rest on top of the 746-foot main towers in huge steel castings called saddles.
Diameter of one main cable including the exterior wrapping: 36 3/8 in. = .92 m
Length of one main cable: 7,650 ft = 2,332 m
Total length of galvanized steel wire used in both main cables: 80,000 mi = 129,000 km
Number of galvanized steel wires in one main cable that are 0.192 inches in diameter: 27,572
Number of bundles or strands of galvanized steel wire in one main cable: 61
Average number of galvanized steel wires in each of the 61 bundles: 452
Weight of both main cables, suspender cables and accessories: 24,500 tons = 22,200,000 kg
Please hit L and view larger.
One tendril of this flex cable goes off somewhere under the lens. Judging from the appearance of the new part, this is a ground.
Cable tray masked and ready for painting. Black stripes are electrical code designations indicating the type of cable contained in each one..either 3 or 4-conductor cables
www.recyclart.org/2009/03/diy-recycled-cable-spool/
Have a stack of empty trays from a frozen dinner binge? Turn them into useful cable spools !
++ Simple idea by Cyclotronx
the right rack was all switches when I started. once cable management is in there I'll work on replacing patch cables. granted, it's all live.
Un manojo de cables neonatos que, a medida que vayan creciendo, se irán transformando en un manojo de enredos implacables, hasta enmarañarte las entrañas por completo...
You can see how close the car and truck came from hitting oncoming traffic. The collision could have been far worse.
USB 2.0 interface.
Length: 1 meter.
Can transmitting signals with high speed.
Suitable for all Apple products, such as iPad, iPad 2, iPhone, and iPod.
Surge protector upside-down and tied down (...up) with velcro. It's not the cleanest solution but it works well and everything is easily accessible.
A cable pole with lots of broken wires. I added the effect into it via a photo editor, to see how it would look and this is the result. :)
Bucyrus Erie, Model 2570 used for mining coal. The boom is 420 feet long. The maximum load is 800,000 pounds. The total working weight of this machine is about 16 million pounds. Sullivan County, Indiana.