| IP
(New and future system) |
CVBS (Old
system) |
| Higher initial cost (+30%) if existing network is not used (oversheap) with consequent band
occupation |
Lower cost (technologies in fall) |
| Standard protocol for the communication
|
|
| Only one network usable for more services (multiservice), possibility of OVERSHEAP of other services
as the rooms control |
Monoservice (only tvcc) |
| Mesh communication (impossible disable it) |
Tree communication (you can fell it) |
| High safety (see Arpanet and encryption possibility) |
possible tampering and interception (cables cut) |
| Information at logic cells (configurable accessibility) |
wired system |
| Signal D-D-D (source digital - transport digitally - digital recording) |
Signal A-A-D (source analogical - transport analogically - analogical recording) |
| expandable system |
Closed system (closed circuit TV) |
| Global cameras control intrinsic into the system |
Partial control through proper wiring RS 485 |
| anywhere access directly to each source or recorded |
possible access only to the recorder (if equipped) |
| remote software assistance and control |
|
| Future evolution with UMTS and WI-FI (Wireless LAN) |
|
| Very high images quality (informatics not entwined 640x480 25 fps) |
Image low quality (TV entwined equal to 320x240, 1/4 of the IP one) |
