Perimeter layout guidelines
FlexZone Product Guide
Page 19
For a multi-processor FlexZone installation with a double pass of sensor cable using software
zoning, precise target locating, as well as power and data over the sensor cables there are a
number of requirements that must be observed.
illustrates a 1.8 km FlexZone
perimeter with six processors and a double pass of sensor cable.
•
Each 48 VDC power supply can power to up to five processors over a maximum length of
1.5 km of sensor cable. The power supply must be connected to the central processor.
•
The processors must be divided into blocks of two with network interface cards (NIC) carrying
the data between adjacent bocks (use multi-mode fiber optic NICs to isolate the sensor
blocks).
•
The detection start points of each processor’s sensor cables must match, and both cables
must be of equal length and have identical features (e.g., service loops, sensitivity loops, zone
demarcation loops, etc.).
•
Power flow, data flow and synchronization must be setup for each block of sensors via the
UCM.
Processor location guidelines
The FlexZone processor can be mounted outdoors on a post, either on, or separate from, the
fence on which the sensor cables are installed (see
). A rigid fixed post is recommended
for outdoor applications. The FlexZone processor can also be installed indoors or outdoors on a
flat stable surface. Post-mount hardware is supplied for post sizes from 4.5 cm to 12.7 cm
Figure 10: Multi-processor, double pass ranging sensors with isolated power groups
Figure 11: Processor location active cable start points
300 m
300 m
300 m
300 m
300 m
300 m
power supply group
power supply group
48
VDC
48
VDC
NIC
processor
FlexZone
bi-directional data flow
power shared between
processors over both sensor cables
NIU
NIU
mmfo NIC
mmfo NIC
service loops for fence-mounted processor
non-detecting
no overlap for post-mounted processor
FlexZone
processor
48 VDC
power
supply
cable
