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Installation Instructions
Model PSX-12
12 Amp Power Supply Extender for NCCNT WAN
INTRODUCTION
Features
P/N 315-048553-5
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.
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)
Figure 1
PSX-12 12 Amp Power Supply Extender
Building Technologies Division
Siemens Industry, Inc.
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Summary of Contents for Siemens PSX-12
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Page 1: Installation Instructions
12 Amp Power Supply Extender for NCCNT WAN 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. -
Page 2: Operation
Communicates via HNET protocol OPERATION The PSX-12 occupies one network address in the HNET network and has three functional components: the Controller, the Power Supply Extender and the Interface Board. The Controller monitors the status of the Power Supply Extender (loss of network communication, 24VDC terminal overload and the status of the battery). - Page 3 Three rotary dial switches located directly below the LEDs are used to set the HNET network address of the PSC-12. PSX-12 The terminal blocks of the PSX-12 are defined as follows (refer to Figure 2): RESET POWER 24VDC Non-Power Limited Output Terminal. This terminal is...
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Page 4: Pre-Installation
The following part is optional: • If the PSX-12 is not located in the same row in the backbox (or on the same CAB-MP) as the CC-5, an extended 60 pin flat ribbon cable, Model BCL (P/N 500-633997), is required. - Page 5 Place the PSX-12 over the four screws on the Mounting Plate and slide it down or towards you to rest on the four screws. (Refer to Figure 4.) When the PSX-12 is in the correct position it will be flush with the top, bottom and right side of the Mounting Plate.
- Page 6 Siemens Industry, Inc. P/N 315-048553-5 Building Technologies Division...
- Page 7 NEC codes and Figure 6 for battery and AC power connections. Power Supply Load Calculations To ensure that the PSX-12 power supply is not overloaded, use the form and follow the procedure listed below. r a l Enter the quantity of each card/module in the enclosure.
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Page 8: Electrical Ratings
BTX-1, BTX-2 OR BTX-3 BATTERIES Figure 7 Wiring BTX-1/-2/-3 Batteries To The PSX-12 ELECTRICAL RATINGS Siemens Industry, Inc. Siemens Building Technologies, Ltd. P/N 315-048553-5 Building Technologies Division Fire Safety &...