Powering External Devices
2. Installation
MS-4412B/MS-4424B Instruction Manual PN 15125:G1 10/22/02
21
Powering External Devices
CAUTION:
Several different sources of power can be connected to this panel. Disconnect all sources
of power before servicing. The panel and associated equipment may be damaged by removing and/or
inserting cards, modules, or interconnecting cables while this unit is energized.
DC power connections are available from TB2 on the control panel as shown below:
Figure 11 Power Terminals
!!
!
TB2
RMS-Regulated Power -
12 or 24 VDC power for
inductive-type devices such as
door holders can be connected
to these terminals.
This output is not suitable for
powering devices requiring
filtered DC power.
Resettable Power -
12 or 24 VDC filtered, resettable power for four-wire
smoke detectors can be obtained from these
terminals.
The combined current draws from the Resettable and
Nonresettable outputs cannot exceed 200 mA.
Nonresettable Power -
12 or 24 VDC filtered, nonresettable
power can be drawn from these
terminals.
The combined current draws from
the Resettable and Nonresettable
outputs cannot exceed 200 mA.
M
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44
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Содержание MS-4412B
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