Planning Guide – CCTV portfolio overview

Analogue cameras

Monochrome camera

Colour camera

Day-night camera

Auto focus camera

Vandal resistant

auto focus fixed dome

Varifocal and monofocal

fixed dome

Vandal resistant varifocal

fixed dome

Speed dome

Weatherproof housing

Pan-tilt heads

Infrared lighting

Transmission methods

 

Coax

Transmitter

Twisted pair

Receiver

 

Fibre optic

Transmitter

Receiver

 

 

LAN / WAN / xDSL

SISTORE CX

SISTORE CX

Transceiver encoding

Transceiver decoding

Advantages

Disadvantages

Coaxial cable

Coaxial cable

 

 

Low cost

 

Large space required due to wide diameter of cable

 

 

Simple to cable, simple handling

 

Signal interference from electro-magnetic sources

 

 

 

 

Point-to-point connection

 

Limited range: up to 200 m depending on cable

 

 

 

 

No maintenance required

 

specification

 

 

 

 

 

No active amplifier required

 

Lightning protection expensive

 

 

 

 

 

 

Separate cable required for control

 

 

 

 

Twisted pair (two-wire) transmission

Twisted pair (two-wire) transmission

 

 

Range up to 1500 m

 

Active elements (transmitter and receiver required)

 

 

 

 

Uses existing cable infrastructure

 

Maintenance required (temperature-dependent)

 

 

 

 

Small space required due to narrow diameter of cable

 

 

 

 

 

 

 

 

Cost-effective for short distances

 

 

 

 

 

 

Fibre optic transmission

Fibre optic transmission

 

 

Range up to 69 km

 

Higher cost (material and handling)

 

 

 

 

Secure against interference and tapping

 

Active elements (transmitter and receiver required)

 

 

 

 

Low pallet and fire load (weight)

 

Significant effort and expense involved with changes

 

 

 

 

No maintenance required

 

in camera location

 

 

 

 

 

Multiple transmission of signals possible

 

Special installation training required

 

 

PSTN / ISDN dial-up line

PSTN / ISDN dial-up line

 

 

Unlimited range in existing ISDN telecommunication

 

Cost depends on the availability of telecommunication

 

 

 

 

networks

 

networks

 

 

Cross-border connection possible

 

Active elements (transmitter and receiver) required

 

 

 

 

For in-house systems, no costs if the systems present

 

Slower image transmission speed

 

 

 

 

are used

 

 

LAN / WAN / Web

LAN / WAN / Web

 

 

Uses existing network structures and hardware

 

Hardware cost

 

 

 

 

No range limit within the network

 

Bandwidth restriction for image transmission speed

 

 

 

 

Internet integration possible

 

Bandwidth restriction for image transmission quality

 

 

Telemetry receiver driver

Video (direct connection)

for pan-tilt heads

 

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Siemens TFT, CRT manual Coax, Receiver, LAN / WAN / xDSL, Video direct connection, For pan-tilt heads

CRT, TFT specifications

Siemens, a prominent name in electronics and engineering, has made significant contributions to display technology, particularly in the realms of Thin Film Transistor (TFT) and Cathode Ray Tube (CRT) displays. These technologies have paved the way for advancements in visual media, ranging from television sets to computer monitors.

TFT display technology, a type of LCD (Liquid Crystal Display), employs thin film transistors to produce brighter and more vibrant images. One of the main features of TFT displays is their ability to deliver high resolution and excellent color reproduction, making them ideal for various applications such as smartphones, tablets, and laptops. TFT screens utilize an active matrix approach, which allows each pixel to be controlled individually. This method results in faster response times and improved image quality, with less motion blur, compared to older passive matrix displays.

One of the key characteristics of TFT technology is its versatility in different settings. It supports a wide range of viewing angles, which enhances the user experience whether one is viewing the display head-on or at an angle. Additionally, TFT displays are known for their thin profile and lightweight design, contributing to the overall portability of devices that incorporate them.

On the other hand, CRT technology, which was once the standard for televisions and computer monitors, uses electron beams and phosphorescent screens to produce images. One of the defining features of CRTs is their ability to display deep blacks and a wide color gamut. CRT technology can achieve high refresh rates, reducing flicker and improving the quality of fast-paced visuals. However, CRTs tend to be bulkier and heavier than modern display technologies like TFT.

Despite the evolution towards flat-panel displays, CRT technology is still appreciated for its natural color and motion portrayal. Siemens has leveraged these characteristics to produce quality CRT monitors that were favored in professional settings, including graphic design and medical imaging, where color accuracy is paramount.

In summary, Siemens has played a vital role in advancing both TFT and CRT technologies. TFT displays are recognized for their high resolution, fast response times, and design versatility, while CRTs are celebrated for their rich color and depth. As technology continues to advance, the legacy of these display types remains influential in shaping modern electronic devices.