The CCTV System

Feb 1, 1997 12:00 PM

           

The CCTV system When redesigning Trans Financial's access control and alarm systems, Greg Bolden, director of corporate security, and Steve Perkins, customer service center manager for Mosler, also developed a new CCTV system, which is being implemented at each of the branches as equipment upgrades are due. The new equipment, particularly the VCR specification, enhances branch security. To make it easier to maintain and manage, it will use the same componentry:

* Indoor cameras. Ultrak 1/3-inch black and white CCD, with built-in back-light compensation, adjustable iris and focus. The cameras are mounted 96 inches from the floor and 36 inches off center from each of the teller windows, says Perkins. Bank cameras used to be mounted on the ceilings, but a lot of bank robbers today wear baseball caps, and a camera mounted on the ceiling cannot see under the brims of the caps.

* Outdoor cameras. Ikegami ICD31 with adjustable back-light compensation, auto iris and a DC amplifier that allows finer adjustments and does not interfere with the camera's sensitivity. * Power supplies. Altronix ALT-V248 eight-position power supply. Each camera has a dedicated power supply with an output fuse, so a short in one camera does not shut down the entire CCTV system.

* Monitors. Ultrak KM-12. These 12-inch monitors are an upgrade from Trans Financial's older specifications, which called for 9-inch units.

* According to Perkins, 12-inch monitors supply 50 percent more information, which is useful in determining facial characteristics and descriptive details.

* Switchers. Pelco VS508HX eight-position bridging sequencer with trigger and Pelco VS512HX 12-position homing sequencer with trigger. Different branches have different camera requirements and will use the eight- or 12-position models as needed. Of chief importance is the triggring feature, which allows the system's time-lapse VCR to lock into one-second switching intervals.

* VCRs. Mitsubishi HS5300UA. When set to 960-hour recording, this time-lapse model will record one frame every six seconds. A triggered output couples with the triggered input of the switcher, ensuring perfect synchronization for all frames. Another benefit of the triggering feature: In the event of a hold-up, an alarm signals the VCR and switcher, causing the recorder to switch from time-lapse to real-time and to cycle from camera to camera every second.

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