Installing the FlexZone processor
FlexZone Product Guide
Page 63
Power connections
Power over sensor cables
Power can be supplied to a group of up to five FlexZone sensors by connecting the central
processor to a 48 VDC power supply, and then connecting its two sensor cables (one on each
side) to one of the sensor cables of the two adjacent processors through splice kits. The second
sensor cable of each adjacent processor is then connected to one of the sensor cables of the two
outside processors. This configuration also enables data communication over the sensor cables.
Setting up power distribution and data communication over the sensor cables is done via the
UCM. To enable alarm data communication over the sensor cables, at least one processor
requires a data link connection to the Silver Network through a network interface card.
illustrates the power and data over the sensor cables concept.
Local power supply
It is possible to use a local DC power supply when a source of AC power is readily available near
the processor. The DC power supply must be installed in its own weatherproof enclosure. The
local supply can be mounted on the same post as the processor to keep the wire runs to a
minimum. Each processor being powered by a local DC power supply requires an earth ground
connection.
WARNING!
DO NOT bring AC mains power into the FlexZone enclosure. If a local
power supply is being used, it must be installed in its own weatherproof
enclosure. Consult the local electrical code for information about the
connection of AC mains to your power supply.
Note
When a central low voltage power supply is being used for primary
power, it should be powered from an uninterruptible power source.
Figure 75: Silver Network power and data over sensor cables
maximum 5 processors
first
second
Network
third
Manager
computer
processor
processor
48 VDC
power supply
NIU
NIC
UPS
AC
per 48 VDC power supply
processor
fourth
processor
fifth
processor
splice
splice
splice
splice
terminators
Содержание FlexZone
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