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NTP Master Reference Clock for CCTV and DVR Applications
CCTV and digital video recorder (DVR) installations require accurate reference time signals for synchronisation of system clocks to ensure that they are always set at the precisely correct time.
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Advantages:
- Accurate universal atomic clock reference
- Supports all NTP compatible devices
- Ideal for CCTV and DVR applications
- Far lower cost than competing products
- Ideal for closed or secure networks
- Direct network interface for remote siting
- Simple setup - One IP address
- Automatic GPS lock and time sync
- Extremely compact design
- Indoor location (antenna on a window)
- Wall mounting
- Integral watchdog for long-term reliable operation
- Robust, self contained unit
- Wide operating temperature range
- Very low power use
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It is crucial that all recordings are accurately time-stamped, especially for evidential purposes. Many DVR products, especially those which are PC-based, have inaccurate internal clocks which drift by many seconds per week. Considering that DVR systems may be left unattended for months on end, it is easy to see that the time settings can end up being in error by many minutes.
The traditional solution to providing an accurate reference time has been to use an atomic clock radio receiver or GPS sensor linked to an expensive rack-mounted master clock server, typically with serial-only output. Network output versions tend to be even more expensive. For this reason, master reference clocks are normally only used in very high-end installations such as city centres, airports and prisons. TIMENET integrates the GPS receiver and master NTP clock server into a single device which can be directly connected to the network. TIMENET is extremely compact, can be wall-mounted, uses very little power and is less than half the cost of competing solutions. |
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