Siemens CRT Brochure page 214

Planning Guide – CCTV portfolio overview
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
Telemetry receiver driver
for pan-tilt heads
Transmitter
Transmitter
SISTORE CX
Transceiver encoding
Advantages
Coaxial cable
Low cost
Simple to cable, simple handling
Point-to-point connection
No maintenance required
No active amplifier required
Twisted pair (two-wire) transmission
Range up to 1500 m
Uses existing cable infrastructure
Small space required due to narrow diameter of cable
Cost-effective for short distances
Fibre optic transmission
Range up to 69 km
Secure against interference and tapping
Low pallet and fire load (weight)
No maintenance required
Multiple transmission of signals possible
PSTN / ISDN dial-up line
Unlimited range in existing ISDN telecommunication
networks
Cross-border connection possible
For in-house systems, no costs if the systems present
are used
LAN / WAN / Web
Uses existing network structures and hardware
No range limit within the network
Internet integration possible
Coax
Twisted pair
Fibre optic
LAN / WAN / xDSL
Disadvantages
Coaxial cable
Large space required due to wide diameter of cable
Signal interference from electro-magnetic sources
Limited range: up to 200 m depending on cable
specification
Lightning protection expensive
Separate cable required for control
Twisted pair (two-wire) transmission
Active elements (transmitter and receiver required)
Maintenance required (temperature-dependent)
Fibre optic transmission
Higher cost (material and handling)
Active elements (transmitter and receiver required)
Significant effort and expense involved with changes
in camera location
Special installation training required
PSTN / ISDN dial-up line
Cost depends on the availability of telecommunication
networks
Active elements (transmitter and receiver) required
Slower image transmission speed
LAN / WAN / Web
Hardware cost
Bandwidth restriction for image transmission speed
Bandwidth restriction for image transmission quality
Video (direct connection)
Receiver
Receiver
SISTORE CX
Transceiver decoding