Installation Instructions
Siemens Building Technologies
Fire Safety
P/N 315-034850C-4
INTRODUCTION The Model SZM from Siemens Building Technologies, Inc. is an intelligent device that
connects a single zone of conventional devices to an FDLC device loop of an FS-250C
System. The SZM can power up to fifteen compatible 2-wire, ionization or photo-
electric smoke detectors or it can power one PB-1191 Beam Detector. It can also
monitor an unlimited number of shorting devices such as waterflow switches, thermal
detectors, manual stations, etc.
Each SZM can be assigned a custom message using the FS-CT2 tool. Refer to the
FS-250C Programming Manual, P/N 315-049403C. The alarm verification configuration
is used only for non-shorting detectors.
The SZM supports Class A and Class B wiring. The module uses one address on the
device loop. It does not require any mechanical address programming. Use the
SDPU Device Programming Unit to program and test the module.
SZM SZM
FRONT BACK SIDE
ALARM
1 2 3 4
5
6 7 8 9
PROGRAMMING
POINTS
Figure 1
SZM Module
Controls And Indicators The SZM has a multicolor LED, visible through the cover plate, which indicates the
condition of the circuit. This multicolor LED displays red for alarm, yellow for trouble,
and green for normal operation (See Figure 1).
PRE-INSTALLATION Setting The Module Address
1. Using the SDPU Device Programming Unit, plug the programming cable
into the programming points on the SZM (See Figure 1).
2. Set the address for the SZM by following the instructions in the SDPU
Manual, P/N 315-033260C.
Remote Conventional Zone Module
Installation Instructions
Model SZM