hardwired

You might consider moving C1/2 and C5/6 closer to the middle of each wall, leaving them crossing. That will place them closer to activity at the far ends, and eliminate unnecessary overlap/double coverage on each wall.

I'd really look around the property and see if there are light poles or something similar that you can mount to and get power from, and use wireless links to get the signal back into the building.

First problem most people run into- massively undersizing the solar panels and battery size. If this is a site that you only want surveillance on during certain hours, you should also plan on using a electronic timer at each camera location to shut off power to the cameras and transmitters after hours, or make sure you have sized the solar system accordingly. Here's a calculator to start with- http://www.batterystuff.com/kb/tools/solar-calculator.html Speed dome cameras use a LOT more power than standard IP megapixel cameras, you may want to consider more fixed cameras rather than PTZ's. (PTZ cameras also tend to be pointed in the wrong direction when something happens, unless you have a full time operator for them). For the wireless links, I've had a lot of success with Ubiquiti equipment. If you have line of sight to all camera locations, I'd suggest their 5GHz gear. Depending on the distances involved, you could use their NanostationM5 units at each camera location, and the Rocket M5 with a sector or omnidirectional antenna at the NVR location. For 4 cameras or so, that should give you plenty of bandwidth for decent frame rates and resolution. In Nigeria, you should be able to use the 5GHz UNII and UNIII bands, so that will give you a lot of channel choices to find a clear link channel, unless you are in a really congested area.

PoE will be fine at 150 Feet, and up to the standard 100 Meter/328 Foot point. The distance limits on CAT5/6 cabling carrying Ethernet data has more to do with the degradation of data signal on the cable than power considerations, multiple devices are on the market to allow for repeating the data at a midpoint, and still delivering PoE power at 600 Feet or more on CAT5/6 cable.

Your first check should be with the POS software manufacturer to see if they've done any integration like this before. If the POS PC is running Windows, see if you can configure a second printer in the POS software, and have that output go to a USB to Serial converter, that input could be connected to the Exacq server. There are other possibilities involving virtual com port communication over TCP/IP that could work, but that would be more complicated. Also, read Exacq integration guide here https://www.exacq.com/kb/?kbid=47356

The current drop calculations there may not be completely useful, because the PoE setup uses DC-DC converters to change the 48-60 Volt applied on the cable to the 12 Volt needed for the devices, and without knowing the dropout voltage of the PoE splitter at the far end (and the efficiency of the conversion), you can't know exactly what the maximum you will be able to draw before the splitter shuts down.

The other set of leads is for the photocell that controls the day/night cutfilter. without it connected, the camera will not switch day/night modes properly. As Buellwinkle indicated, the best choice is going to be using an external IR unit.

Splitting the single source shouldn't be a problem. You may also want to evaluate whether you really need a heater, even though you are in a fairly cold environment. IP cameras tend to generate quite a bit of heat on their own. I have relatives in White Plains and Princeton who are still without power, and a lot of roads blocked by trees and power lines down, it's still pretty ugly, from what I hear.

Your voltage drops are probably excessive. Your best bet is to use a single 802.3at high power injector/splitter pair that utilizes all four pairs in the Ethernet cable, something like the PowerDsine unit here, http://www2.microsemi.com/PowerDsine/Documentation/Datasheets/PoE_951_Splitters.pdf, with the appropriate 802.3at injector, http://www2.microsemi.com/PowerDsine/Products/Midspan/PD_9501G.asp That setup is rated at a 54 Watt output, about the current limits for PoE technology.

In the management application, try going to File-Load Configuration From Restore Point, and see if there's a backup point you can restore. You could also try deleting the particular camera in the settings, and starting over. As far as the camera addressing, it sounds like your cameras are set for DHCP, rather than static IP addresses. What cameras are you using?

Your lens is a H6ZBME-5P, not a "G". Here' some links on it http://www.pentax.cz/web-content/PDF/PENTAX%20CCTV%202009.pdf, http://www.pentax.com.tw/cctv/motorizedzoom.pdf. For the video iris lens control, they need power on the + and - leads, and the actual video signal from the camera applied to the control lead.

Without using a distribution amplifier, teeing off a single monitor output into multiple cable runs is asking for an overall dark image, and ghosting in the monitor's images.

One monitor per output. How does this one look?? http://bnctovga.com/probnc.aspx I don't have any personal experience with that model, but the specs look okay. It lists input impedance at 75 Ohms, so it should terminate the line just fine without needing to add anything else.

..About the only Pelco products I use anymore are their Spectra PTZ's, and the EH3512 housings, they have gone pretty far downhill (and they never were very good with IP products to begin with).

Are you trying to run more than one monitor on each monitor output? If you are running one monitor per output, you can add a BNC T-connector with a 75 Ohm terminating resistor at the monitor, if the converter doesn't already provide a terminating load. If you are trying to run more than one monitor from each output on the matrix, a distribution amplifier at the matrix, with individually terminated runs to each monitor would probably be your best bet, since the converters don't provide a BNC pass-through connection like a dedicated CCTV monitor will, and you may not know whether the converters provide a terminating load or not.

Yes, the terminators are just a 75 Ohm resistor in the connector under the cap. They don't have a composite (RCA type) connector, you would use it together with a BNC tee connector. If you can find a way to get a standard 75 Ohm resistor placed across the coax connector/cable at the TV, it will work fine as well. The spiders are coming to find a meal, find a way to get rid of what they are eating, and you should have less of them.

The alarm keypads with screens are designed to operate with matching control panels, which may be overkill (or maybe not, if you want a full alarm system). An example of this would be something like the Ademco panels/keypad combinations, http://www.security.honeywell.com/hsc/products/kit/bu/ad/76683.html, along with a relay output module, like http://www.security.honeywell.com/hsc/products/expacc/ex/ad/21321.html. If you also want an alarm system, this could be the way to go, but it will add quite a bit in cost and complexity.

Something like this should work- http://www.linearcorp.com/product_detail.php?productId=1227. It comes with one control relay output, but can be expanded to four, with an additional relay module.

For correcting the oversaturated highlights, try adding a 75 Ohm terminating resistor at the TV input. These type of cameras are designed to provide a 1.0 Volt peak to peak signal into a 75 Ohm load, which is what CCTV equipment provides. However, TV's often present a very high impedance load, allowing the signal voltage to go higher, and affecting the contrast in the image.

That camera can use either 12v on the input terminals, or standard 802.3af PoE power. So, you could use the repeaters as I described, without needing to step the voltage back down at the camera.

What cameras are you using? often, cameras will have a 12 or 24 volt input, but still use standard 802.3af 48 volt power. If you really need lower voltage at the camera, there are a number of splitters that peel off a regulated lower voltage from standard PoE, and pass the Ethernet signal through, you could use these at the camera in combination with extenders/repeaters.

Watch for upcoming spam.....

You can install a midpoint repeater, I've used quite a few from Veracity, http://www.veracityglobal.com/products/ethernet-and-poe-extension/outreach-max.aspx.

What frame rate are you trying to run the cameras at? That seems like an absurdly high load, considering you are using very adequate hardware. You could give Milestone software a try, it can run as a free demo, their Essential version runs up to 26 cameras at $50.00 USD MSRP per channel. (I have this installation running 22 Megapixel Sanyo cameras at 2MP, 5FPS, and the CPU load is around 40% on a I5 system. Another choice could be Exacq, but I've run into many more problems with it than Milestone.

It sometimes takes me that long to get them from Milestone, but it's usually 24-48 hours... See http://www.milestonesys.com/Software/Additional-Resources/wheretobuy/ ,but anyone can purchase levels below Enterprise through standard distribution channels.