UFC 4-021-02NF
27 September 2006
change 1, 23 October 2006
2-4.3.1 Combining ACS and IDS. Virtually all ACS can accommodate digital input
signals. Quite often it is possible to combine ACS and IDS when the IDS inputs are
limited to simple digital input devices that do not require separate IDS controllers.
Examples of these types of digital input IDS devices are door contacts, glass-break
sensors, and motion sensors.2-4.4 Complex System. A complex system has a
separate ACS and IDS system as well as a CCTV system communicating to a Dispatch
Center through a DTM as shown in Figure 2-7.
Figure 2-7. Complex System With Separate ACS, IDS, and CCTV Subsystems
In Figure 2-7, the curved line from the ACS/IDS to the CCTV system represents the
interface that occurs between an alarm event (door contact alarm or fence detection
alarm) to the action that causes the output from a CCTV to be displayed on an alarm
indication screen and provide alarm annunciation in the Dispatch Center. The interface
can vary from hardwired contacts to intelligent data communications. System interfaces
and integration are described further in Chapter 8, "ESS Subsystem Integration."
2-4.5
Networked System. Figures 2-5, 2-6, and 2-7 show discrete systems. An
emerging trend in the security industry is an evolution towards networked systems as
shown conceptually in Figure 2-8.
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