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P/N 315-033060-19
12 Amp Power Supply
Installation Instructions
Model PSC-12
Figure 1
PSC-12 12 Amp Power Supply
INTRODUCTION The Model PSC-12 from Siemens Industry, Inc., is a high current power supply that
provides the FireFinder-XLS/Desigo Fire Safety Modular/Cerberus PRO Modular
system with primary regulated 24VDC. It is rated at 12A and has a built-in charger that
is capable of charging up to
100AH batteries. It also has a
microprocessor-controlled
transfer circuit that allows
the PSC-12 to switch the
system power to stand-by
batteries during loss or
reduction of the AC
power.
The PSC-12 incorporates
a 18A circuit breaker on
the battery input. It
provides connection to a
tamper switch and
terminal tie points for
system signals.
The PSC-12 communi-
cates directly to the PMI/
PMI-2/PMI-3 (XLS),
FCM2041-U2 (Desigo
Fire Safety Modular),
FCM2041-U3 (Cerberus
PRO Modular) to report fault conditions and allows the PMI/PMI-2/PMI-3 (XLS),
FCM2041-U2 (Desigo Fire Safety Modular), FCM2041-U3 (Cerberus PRO Modular) to
query the status of the power supply. It has 1 common alarm relay, 1 common
trouble relay, and 2 programmable relays. The common alarm and common trouble
relays are defaulted to activate when the degrade ALARM bus or degrade TROUBLE
bus is asserted.
The PSC-12 mounts at the back of the enclosure of the FireFinder-XLS/Desigo Fire
Safety Modular/Cerberus PRO Modular system and occupies one location on the
studs in the backbox or on the optional FireFinder-XLS/Desigo Fire Safety Modular/
Cerberus PRO Modular Mounting Plate, CAB-MP.
Features The PSC-12 features are as follows:
• AC power input 120VAC - 240VAC +/- 10% @ 60Hz / 50Hz
• Off-line Switch Mode Power Converter
• Power Factor Correction
• Built-in Battery Charger
• Total Output power of 12A@24VDC
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