survtech

156 is £. Here is a link to the Extended ASCII Character Set http://www.irongeek.com/alt-numpad-ascii-key-combos-and-chart.html. Use the left columns for Windows, even though the page says that the right columns are "Window's ANSI/ISO Latin-1/ANSI Extended ASCII" I use some of them regularly. For instance: ¢ = 155 ½ = 171 ¼ = 172 µ = 230 Ω = 234 √ = 251 To use, press and hold the "Alt" key while entering the number on the numeric keypad, then release the "Alt" key. The numbers across the top of the keyboard don't work. Among my favorites: π r ■ (Pi r Squared)

FYI. RS422 and RS485 are the same if you don't need bi-directional communication. PTZ control is typically only one-way (control unit to PTZ). The only time you would need bidirectional RS4xx is if you want to utilize alarms or some other function within the PTZ that needs to send data back to the control unit.

Yes. Spectra III and Spectra IV can be interchanged in the same back boxes. Not so with Spectra II and Spectra III/IV.

Yes. Examples: http://www.marshall-usa.com/optical/lenses/pinhole/widepinh.php

Probably because there is little or no interest. HD-SDI is aimed at low-end users, as are DVRs (SD or HD). Typically, standalone encoder/VMS systems are aimed at the higher-end users.

Just look up "20mm to 16mm reducer". http://www.neweysonline.co.uk/newey-eyre-reducer-steel-galvanised-20mm-16mm/1052045126/ProductInformation.raction http://www.bunnings.com.au/products_product_conduit-fittings-deta-20mm-to-16mm-reducer-2pk-2725b_P4330834.aspx http://www.questelectrical.co.uk/20mm-16mm-steel-galvanised-reducer.html/

Actually, there are a few of ways to do that: 1. FM Systems makes a couple of "Video Diplexers" that will combine two analog cameras to one cable. Not cheap: http://www.fmsystems-inc.com/cw/Details.cfm?ProdID=95&category=17 PS - you need both a transmitter and a receiver. 2. They also make a Remote Controllable A/B Relay Switch. You'd still need to get 24VDC from the monitor's location to the switch (possibly do-able over the coax): http://www.fmsystems-inc.com/cw/Details.cfm?ProdID=206&category=17 3. Another possible way, but at the sacrifice of some image quality. Two RF Modulators and a signal combiner. You put them on separate channels and tune the TV back and forth: http://www.linearcorp.com/product_detail.php?productId=171 All of the above assume you want to feed "baseband composite" analog video and don't mind switching the TV back-and-forth to see either DVR. Otherwise, your choices are nil.

It depends on how you order them. If you order any "SD" model (SD423xxxx, SD429xxxx or SD436xxxx), you get the complete package: Dome Drive, Back Box and Lower Dome (bubble). You can also order each component separately (DD4xxxx = Dome Drive, BB4xxxx (Back Box) and LDxxxx (Lower Dome (Bubble and Trim Ring)). Here's links to the Spec Sheets, which show models, etc: Spectra® IV SE Series Dome Systems - http://download.schneider-electric.com/files?L=en&p=6532&p_docId=41&p_docId=&p_Reference=EN_C2448&p_EnDocType=Technical%20leaflet&p_File_Id=36504412&p_File_Name=EN_C2448_SpectraIV_SE_r122112.pdf Spectra® IV SL Series Dome Systems - http://download.schneider-electric.com/files?L=en&p=6532&p_docId=41&p_docId=&p_Reference=EN_C2449&p_EnDocType=Technical%20leaflet&p_File_Id=27220897&p_File_Name=EN_C2449_SpectraIV_r091912.pdf

You should also put your cameras on the UPS. It's mostly pointless to keep a DVR running with no signals to record.

"Lots of room for storage" - define "lots" in relation to the demands of streaming video. I didn't bother to do more than perfunctory math on Amazon's S3 product pricing but from what I can gather, it is aimed at occasional backing up of computer data, not continuous streaming. That's why they have both cost-per-gigabyte and cost per access charges. "Glacier is designed with the expectation that restores are infrequent and unusual, and data will be stored for extended periods of time. You can restore up to 5% of your average monthly Glacier storage (pro-rated daily) for free each month. If you choose to restore more than this amount of data in a month, you are charged a restore fee starting at $0.01 per gigabyte." I would seriously recommend you do more investigation into the actual difficulties and costs of storing video online, including both the cost to get it there and back (internet bandwidth charges) and the costs to store and retrieve the video. I think you'll find it is more expensive and problematic than you realize.

Larry, I think the main issue here is that once upon a time, many discussions here were highly sophisticated and technical and dealt with complex issues. Now the vast majority of discussions consist of DIY'ers and Costco systems that are, at the very least, unchallenging. I'm not saying that is wrong, just that the bulk of discussions hold little interest to many of us. I still read and post here occasionally but the percentage of discussions that interest me has declined tremendously. In that respect, cctvforum is not alone. LinkedIn is in the same boat. Many of us have moved on from both here and there. I think you'll find a number of your ex-members have moved from both forums to places like IPVM.

Sorry, couldn't resist...

Two things: * Rg59 will do just fine at distances up to at least 750 feet. * Most RG6 is made of the wrong material - copper-clad steel and aluminum versus all copper.

The main problem with flex shafts is that it is difficult to keep the drill going in the right direction. For holes down through walls and up or down, I prefer to use flexible bits, which are drill bits with very long semi-flexible shafts, like this: Auger bits are a bit easier to use in wood because once they are started, they tend to pull themselves through the wood, rather than requiring force.

It is not advisable to run communication cable and high voltage cable either in the same conduit / cable tray or within 12 inches (0.3m) open for distances longer than a couple of inches. The reason is that the high voltage can induce current in the other cables, causing noise and a risk of electric shock.

Camera placement is at least as much an art as it is a science. That is the problem: too many variables in the equation - ceiling height and design, obstacles and obstructions, field of view and a knowledge of what areas are the most critical and how best to cover them are factors that require experience and a lot of often-unavailable information. The best way to lay out a camera system is with a thorough site survey by someone with experience in that application. 2D, and even 3D CAD designs typically can't provide that level of detail. It's difficult, if not impossible, to accurately lay out a project on paper (at least not exact locations) but experience can give planners at least enough ability to get a camera count and cable requirements for bidding on a project. I would still allow a buffer to accommodate unforeseen problems that would have been noted in a true site survey, like aisles blocked by displays or signs hung from the ceiling.

I would be amazed too. 1080p is 2MP.

IP, megapixel and HD are not be-all, end-alls. No matter what some of you might think, a well laid out analog system can do many jobs just fine. And analog is far from dead. An overwhelming majority of casinos are either 100% analog or at least mostly analog. The points are cost to completely overhaul the infrastructure, inability of many IP cameras to guarantee continuous 30fps, unknown longevity of IP cameras (good quality analog cameras typically last 10 years plus) and most importantly, most casino surveillance systems are optimized for analog. That means, care has been taken to select, locate, install, aim and zoom the cameras for optimal coverage. Changes to accommodate HD would also require patching numerous holes in ceilings. This isn't your typical Mom and Pop store. Casinos often have over 1,000 cameras with sufficient coverage to see 100% of the gaming floor with sufficient clarity (I love that term) to identify everything that goes on and every person there. That often takes more planning and installation skill than even some of the most complex IP systems but due to that foresight, there is no pressing need to convert to MP IP. Other than bragging rights or maybe brand new venues, the smart casinos are installing MP in select locations based on demonstrated superiority for the intended purpose (for instance, to see the cards and chips on a gaming table clearly with just one camera, instead of two). In many other casino applications, MP would just be overkill and there is no rational basis for replacing high-quality analog cameras with 4CIF IP cameras. Then you add camera cost to the mix. We pay ~$90 for box cameras and ~$150 for most domes. Those cameras have been selected after rigorous testing based on their excellent picture quality, flexibility and installation ease. Similar quality IP cameras would likely cost at least 3x as much.

Didn't you guys know Mobotix cameras can see around corners, through walls and shelves and over counters? Sheesh, where have you been?

We usually buy West Penn 254246. Not cheap but we have to use plenum. From our CCTV distributor.

Spectra III and Spectra IV are operationally the same. If you swap out a Pectra III with a Spectra IV, it should function the same. If it doesn't, check the dip switch settings.

I rest my case...

Judging by some of your comments, I would say that statement is accurate.

I do . An MP camera running at 90% compression will not demonstrate the image quality of an analog camera fed to an analog monitor.

Yes, a VMS, cameras and encoders using a proprietary codec (JPEG2000). That equals Closed.