TelephoneNetworkRollout

http://scratchpad.wikia.com/wiki/Sasecurity

Building a telephone exchange on the joint perimeter
attachment:housePerim.png

Walk-behind trencher and walk-behind VibratoryPlow are described under TrenchingEquipment.

A 1km backbone is formed down the joint perimeter of the houses. The backbone is only on one side of the houses(Yellow stripe). The green line indicates where an irrigation poly-pipe is layed via a walk-behind VibratoryPlow, connecting the house to the backbone.

A walk-behind trencher cuts a trench(yellow line) parallel to the wall a depth of 75cm. The trench is cut from wall to wall with a thin slit trenching blade. To be able to lower a DingoDrill to tunnel under the walls a crocodile trenching blade is used to widen the trench slightly for a distance of 1m from the wall.

At the junction of H3,H4 (magenta circles on image) a small tunnel under the wall founcation is made to insert a 1m PVC pipe or CableFlex. Making a hole under the wall foundation is a simple process and there is no need to use a piercingtool, DingoDrill, soil-displacement-mole or other expensive equipment as described at HorizontalDirectionaldrilling.

The TwistedPair housed inside LDPE connects each house to the backbone. The LDPE connects to the Drillboxes against the wall. A hole is drilled through the wall through which the TwistedPair is pulled, connecting the house to the backbone.

The DsLam is placed at the CentralOffice as the picture indicates. Each house has an ADSL modem which connects to the DsLam. With additional TwistePair installed in the backbone CCTV is streamed to the CentralOffice as indicated by the red cylinder in the pictureg. Any house could function as the CentralOffice but to minimise the cable runs the centre of the street should be the designated house.

Telephone exchange under the pavements
* PavementTrench.png attachment:pavementTrench.png

The backbone can also be laid under the driveway of every house as indicated by the yellow line. This is an alternative setup to the Joint Perimeter layout. Using a VibratoryPlow each house is connected to the backbone. The plow lays the LDPE pipe upto the House Perimeter. A hole is bored under the wall through the wall foundation with a CoreDrill and a galvanised pipe inserted. Inside the House Perimeter the plow completes the run to the DrillBox. The yellow line trench is cut upto each driveway. Either a Rod-pusher, Piercing Tool, DingoDrill or HorizontalDirectionaldrilling is used to tunnel under the driveway. The tunnel must be at least 60cm below the driveway.

Or using a HorizontalDirectionaldrilling a tunnel is made under the house perimeter joining it to the backbone. This is how FTTH(Fiber to the Home) attachment:hddDitchWitchJT921.jpg attachment:hddDitchWitchJT1220.jpg installations are done in America. It will just cost significantly more than using a VibratoryPlow though.

The two Central Offices(CO) on either side of the tarroad are connected via TelephonePoles or HorizontalDirectionaldrilling. In this manner  hundreds of residential blocks are connected to the telephone exchange.

Telephone exchange via 15mm Poly-pipe on joint perimeter wall
PolyPipeOnPerimeters

Telephone exchange using telephone poles
Telephone poles are the simplets and most cost effective way building a telephone exchange. That is why Telkom uses it. BR TelephonePoles

Telephone exchange combined with Wi-fi 2.4ghz for a hybrid solution
HybridMeshAndTelephone

Combining CCTV with DSLAM
A single TwistedPair will trasnmit the VDSL CPE CCTV data for five houses to the CentralOffice. Five houses will thus have 2.4megs available to them per house for simultaneous downstream transmission. CCTV data is only one-way to the CO. Copper is expensive and sharing TwistedPair in this manner reduces the costs.

Each house has a ZoneMinder box. CAT5 cable streams the ZoneMinder box data to the ServingAreaInterface(purple box) from where it is uploaded to the VDSL bridge CPE. PolyPipeOnPerimeters shows the purple box(ServingAreaInterface)

Link Dslams with fiber optics
["CWDM"] - course wave division multiplexing BR ["CWDM"] network switches allows a fiber strand to be 'split up' into four or more seperate data channels. Each channel uses a different nanometer range light spectrum. The CentralOffice ["CWDM"] sends data to the ["CWDM"] CPE device. Each ["CWDM"] device can interface with a DsLam. In this way an 8-core fiber can serivce 16 DSLAMs for example. The fiber is run down the centre of the streets as indicated by the red cylinders the pictures. The simplest is to suspend the fiber cable from telephone poles at the points indicated by the red cylinders. Underground ducting can be used but will escelate the costs. A telephone pole allows additional fiber to be suspended at anytime and thus a phased gradual cost effective rollout can be achieved.

Trenching versus Telephone poles
Telephone poles allow additional wires to be added as needed in the most cost effective manner. To be able to add cables underground after a ditch has been trenched a 75mm CableFlex pipe must be inserted.

VibratoryPlowing from perimeter to perimeter
Lay 20mm LDPE from perimeter to perimeter via a VibratoryPlow. At the joint perimeter wall a powerfull CoreDrill is used to bore under the wall through the foundation of the wall. A galvanised pipe is inserted into this hole for the cabling.

The reason why the walls crack of a built house is because a trencher wasn't used do dig 1m deep upto the sandstone layer. This trench must be filled up with building sand and then only must the cement foundations be layed. He concluded that building a house without a trencher is like a mechanic trying to fix an engine without a spanner.

Establish multiple drillboxes
VibratoryPlow around the a perimeter. Lay 20mm LDPE and install TwistedPair, Rg-58,Molex ATX connector for desktop PC, Alarm cable and CAT-5 Ethernet cable. At various points on the LDPE install DrillBoxes and connect muyltiple types of cable to the Drillboxes. At these points any Ethernet device, PIR or analog camara can be installed. Ideally the communications cable should be layed before the house is even built.

Financing Telephone networks
*FinancingTelephoneNetworks *TelephoneNetworkCosts *WirelessComparedtoTelephonePoles