survtech

By the way, I recommend lubricating the O ring with a bit of silicon grease or equivalent to help prevent that in the future.

We don't use any design software at the casino. We do lay out our cameras in AutoCAD, but that's just for use by our observers to know what cameras are looking at what. As far as camera and lens selection, that is decided by me based on the situation and my experience.

It wouldn't hurt anything to try. We commonly interchange the two with no problems.

There are very few differences between the two. Most RS-485 devices will work on RS-422 systems and vice versa. The big difference is the number of devices that can be daisy chained (10 for RS-422 vs. 32 for RS-485) and whether a single pair can handle two way (bidirectional) communications or just unidirectional. Since PTZ control is usually only unidirectional, the two communications systems are virtually interchangeable. Don't confuse the serial communication standard with the protocol. Protocols are not interchangeable. Link to FAQ

Was my post in this thread with a bunch of links deleted? If so, why?

Modern ones are almost plug and play. The wiring is standardized but you might have to adjust the iris potentiometer a bit for best results.

Schedule 40 and 80 cast iron pipe is very heavy. You need strong, well mounted flanges to mount it at the top. You can save a bit of weight by using 1-1/4" or 1-1/2" EMT conduit (depending on what your pendant domes require) with set screw connectors at each end. It's easier to cut to length than cast iron pipe. To keep the conduit from slipping out of the connector, mark and drill a hole in the conduit where one of the set screws goes, then use a longer set screw that can go right through the hole.

Canon DigiSuper 60 25x to 100x CCTV lenses] Extreme GVS1000 Long Range Day/Night PTZ Surveillance System * Dual ZX700 IR illuminators * IR optimized zoom lens (12.5mm-750mm / 60x zoom) * Recognition and Identification capability * Variable speed precision pantilt with digital control Vumii Discoverii PTZ cameras - to 60x optical zoom Pricing = $89,200 and up

Tokina and Pentax also make them. Here is a link to a page at B&H: Darned Expensive Lenses Keep in mind that any camera with that high a multiple zoom lens will need a VERY stable platform and PTZ control may be nearly impossible when zoomed in. There are companies that make the complete package but you are talking really big bucks. You will also probably need a system with some form of image stabilization since when the camera is zoomed in the picture will be very jumpy. Here is a 36x system for over $6k Here are some long range FLIR units

Baluns have the same BNC connector as coax so if the one were to become loose, so would the other. As far as the other side, where the twisted-pair connects, I've seen several types of connections - each has its pluses and minuses. Vigitron and a few others use "screw-crimp" terminals and they can be a pain; I suppose they are the most prone to loosening up. We have used them and found that the individual wires pull out relatively easily. Other types of screw terminals like the ones pictured below are better because the wires go into the terminal at a 90 degree angle: GVI, VBI (Video Baluns Unlimited) and others use IDC connectors and we have never had a problem with them. Still others require an RJ-45 connector be placed on the twisted-pair. That is also a pain but should be OK if the RJ-45 is crimped properly:

See my answer to your other post. Passive baluns will probably outlive you unless exposed to the elements. Coax connectors would also corrode with the same exposure so if you take care to keep them dry, each should last a long time.

Passive baluns do not have a short lifespan. While certain electronic parts do have a limited lifespan like electrolytic capacitors, LED's, tubes and certain display devices, baluns are mainly just a transformer and maybe a ceramic capacitor. These parts have a lifespan that is typically measured in decades. The same can not be said for active devices; they contain parts whose lifespan is shorter, like aluminum electrolytic capacitors, which have among the shortest lifespans of any electronic parts.

AIM 3-Piece BNC Connectors The 27-9189 connectors should work fine with that tool.

I pretty much agree with everyone on this subject. If the customer really wants a comparison, why not just save a snapshot of the picture from each camera for comparison purposes?

I would limit it to runs of no longer than 100 feet.

I seriously doubt it. That would cause termination issues. Try asking Pelco Technical Support at (800) 289-9100 USA & Canada or (559) 292-1981 International.

I don't know of any stand-alone system that can handle both PAL and NTSC cameras simultaneously. Our NVR theoretically can because each channel can be designated PAL or NTSC. A lot would depend on your monitoring system. If you use VGA or DVI monitor(s), they may be able to handle either, although probably not simultaneously on one screen.

Then again, just pick up a Kalatel KTD-83 code distribution unit for a bit over $100 and you can run separate lines to each PTZ.

Are you using the proper RG-59 for CCTV?

I'm not sure about their power supplies, but their power cords are only rated to 105 degrees Farenheit.: LC1 6 ft. Two-wire line cord Features/Specifications • 6 ft. length. • 18 AWG gauge. • Cord type: SPT-2. • Operating temperature up to 105º. Similar Altronix Products LC2 6 ft. Three-wire line cord.

We don't use patterns (or as Pelco calls them, tours). The operators determine where to aim PTZ's as they need, then reset them to "Preset 1" position after they are done. The default preset (Preset 1) is determined by Surveillance management.

It has to do with the Operating System and the chipset the DVR uses. Still, with most DVR's, installing a larger hard drive than the system was designed for will not hurt it. The only thing that will happen is that the system will only format the drive for the maximum size it allows and the rest of the space will be wasted. For instance, the Sanyo DSR-M800 and DSR-M810 only accepted 120GB drives. When we install 250GB drives in them, they format to 120GB.

This may not help but you can check WD to see if the product has a longer warranty than your DVR manufacturer provides. Warranty Policy and Limitations Warranty Services for End Users

Our casino has approximately 150 PTZ's and over 800 fixed cameras. That makes the ratio approximately 16% PTZ and 84% fixed. All cameras are analog.

Most power supplies of that type have common grounds, even if they have multiple ground pins. You can confirm that by doing a continuity test between the ground pins with a VOM or continuity tester.