SENSTAR FlexZone - High Security Installations; High-Security Installation Rules

High security installations
Page 24 FlexZone Product Guide
High security installations
The FlexZone sensor can provide redundancy for high-security installations, providing certain
rules are followed. If these rules are followed, then the system will continue to provide perimeter
detection even if one processor fails, or a sensor cable is cut or if one power supply fails. With this
configuration, each 300 m of sensor cable is monitored simultaneously, by two processors.
High-security installation rules
• maximum sensor cable length for one side of a processor is 150 m (492 ft.) except terminated
open ends of perimeter (max 300 m)
• maximum length of sensor cable between 2 processors is 300 m (984 ft.)
• a minimum of two 48 VDC power supplies (depending on total number of processors)
• power supplies must be connected to processors on the ends of the perimeter
• two Silver Network connections to two Network Manager PCs at opposite ends of the loop,
OR, star network configuration setup using PoE with redundant switches
Figure 13:
shows a seven processor high-security perimeter up to 2.1 km (1.3 mi.) in length.
Note If a sensor cable is cut, location accuracy may be diminished and an
increased system noise level (clutter) and NAR may occur. In the event
of a cut cable, repairs must be made as quickly as possible to return the
system to its full detection capabilities.
Note A fully redundant system requires that there be no single point of failure.
Therefore, the system requires two Network Interface Units, two
Network Manager PCs, two Security Management System PCs (NM
and SMS can reside on one PC) and two UPS systems.
Figure 13: High-security redundancy (2.1 km example)
150 m (max.)
150 m (max.)
48
VDC
48
VDC
48
VDC
48
VDC
300 m (max.)
NIU
NIC
NIC
UPS
UPS
NIU
NM
SMS
NM
SMS
P1
P2
P3
P4
P5
P6
P7
300 m
(max.)