Siemens Industry, Inc.
Building Technologies Division
P/N 315-048553-5
12 Amp Power Supply Extender for NCCNT WAN
Installation Instructions
Model PSX-12
Figure 1
PSX-12 12 Amp Power Supply Extender
INTRODUCTION
The Model PSX-12 from Siemens Industry, Inc., is a high current power supply
extender. The power supply extender works in conjunction with the PSC-12 power
supply to provide an additional 12A of regulated 24VDC for internal or external system
use.
Up to three PSX-12 modules may be
connected to one PSC-12 power
supply and one set of batteries.
The PSX-12 has a microprocessor-
controlled transfer circuit that
allows it to switch the system
power to stand-by batteries
during loss or reduction of
the AC power.
The PSX-12 incorporates
a 18A circuit breaker on
the battery input
The PSX-12 communi-
cates directly to the NCC
to report fault conditions
and allows the NCC to
query the status of the
power supply extender.
The PSX-12 mounts at
the back of the COM-1
enclosure and occupies one location on the studs in the backbox or on the optional
CAB-MP Mounting Plate.
Features
The PSX-12 features are as follows:
•
Universal AC power input 120VAC-240VAC @60Hz / 50Hz
•
Off-line Switch Mode Power Converter
•
Power Factor Correction
•
Total Output power of 12A@24VDC
•
Two separate power output terminals: one power limited terminal with 4A
max @ 24VDC capacity and one non-power limited terminal with 12A max @
24VDC capacity (total not to exceed 12A)
