English – Installation Instructions
WARNING - Before starting to install and work with this device, please read
the Safety Instructions.
When changing or installing the SPCP332/333 on the SPC system, always
ensure that the mains supply and the battery are disconnected. Ensure that
all anti-static precautions are adhered to when handling connectors, wires,
terminals and PCBs.
EC Declaration of Conformity
Siemens Security Products hereby declares that this product is in compliance with
the essential requirements and other relevant provisions of Directive 2004/108/EC on
Electromagnetic Compatibility (EMC).
The EC Declaration of Conformity is available from your Siemens sales office or:
Siemens AB, Security Products
Englundavägen 7
SE-171 24 Solna
Sweden
Introduction to the SPCP332/333
The SPCP332/333 is a Power Supply Unit (PSU) combined with an 8 Input / 2
Output Expander which can be placed anywhere on the SPC X-BUS. The expander
monitors the PSU for over-current, failures with the fuse, mains/AC, communications
and also battery problems. The expander receives power and data directly from the
PSU via a connector cable and interfaces with the SPC controller via the SPC X-
BUS.
Fig. 1 shows the expander (highlighted in grey) mounted on the PSU.
See Fig. 1: SPCP330 (Expander mounted on PSU)
1.
Mains Input Block
2.
Input Transformer
3.
Mains Power LED (see Appendix A: LED Status)
4.
Battery Charge State LED (see Appendix A: LED Status)
5.
Fuse Fail LED (see Appendix A: LED Status)
6.
Current Limit LED (see Appendix A: LED Status)
7.
Status LED (see Appendix A: LED Status)
8.
Battery Selector (see Appendix B: Link Position): If the battery type selected
does not match the battery, it will cause the battery to charge either too slowly
and not reach the 80 % capacity in the required time, or too quickly, reducing the
life of the battery. The PSU shows a fault if the jumper is not fitted.
9.
PSU 4-pin Interface: Connects to item 12, Power and Data Connector, with a
straight through cable.
10.
PSU Outputs (output 1, output 2): Each output is fused separately with
electronic 1.25 A fuses.
WARNING: The total load current drawn from outputs 1 and 2 combined
should not exceed 1.5 A (750 mA per output). This is to ensure that
enough power is available to charge the battery to 80% of its normal
capacity within 24 hours. If more power is required on the system,
consider connecting an additional or higher rated PSU.
11.
Battery connectors (BAT+, BAT-): 2 A fuses
12.
PSU 4-pin Interface: Connects to item 9, Power and Data Connector, with a
straight through cable.
13.
Front tamper switch: The expander has a front tamper switch with spring. When
the lid is closed, the spring closes the switch.
14.
Tamper by-pass [J1]: The jumper setting determines the operation of the
tamper. The tamper operation can be overridden by fitting J1. The engineer must
ensure that J1 is removed before leaving site for the system to comply with
standards.
15.
Buzzer: The buzzer is activated in order to locate the expander (see SPC
Configuration Manual).
16.
Manual addressing switches: The switches allow manual setting of the ID of
each expander in the system.
17.
X-BUS status LED: The LED indicates the status of the X-BUS when the
system is in FULL ENGINEER mode as follows:
LED status
Flashes regularly
(once every 1.5 seconds approx.)
Flashes quickly
(once every 0.2 seconds approx.)
18.
Outputs: The expander provides two programmable outputs for use on the SPC
system.
19.
Inputs: The expander has 8 on-board zone inputs that can be configured as
intruder alarm zones on the SPC system (see section Wiring the inputs).
20.
Auxiliary power supply (12 V): Do not use.
21.
Input Power:
0V must be connected to SPC controller 0V (System GND). Do not use 12
V input.
22.
X-BUS Interface: The communications bus connects expanders on the SPC
system.
23.
PSU Tamper Switch and Bypass: Bypass must be fitted if expander is mounted
on top and if in a small enclosure.
24. Termination Jumper: This jumper, as a default, is always fitted. However, when
wiring for star configuration, this fitting should be removed. For more information,
see section Wiring the X-BUS Interface.
25.
Back tamper terminal block: Fit a link across this block if tamper switch is not
used.
26.
Back tamper switch - See section on Back tamper switch installation.
Description
The X-BUS communications status is OK.
Indicates the last in line expander (excludes
star and multi-drop configuration)
When connecting a battery to the PSU, ensure that the positive and
negative leads are connected to their respective terminals on the PSU.
Ensure that all safety precautions are adhered to when handling
connectors, wires, terminals and PCBs.
Charging the battery via PSU
During normal operation, the PSU continuously trickle charges the battery. If the
mains power fails, the battery supplies power to the PSU outputs until such time as
the battery output voltage drops to 10.5 V DC (see section Deep discharge
protection) and the PSU turns itself off.
Testing Battery Voltage
The PSU performs a load test on the battery by placing a load resistor across the
battery terminals and measuring the resulting voltage, ensuring that the battery
voltage does not drop significantly under load conditions. The battery test is carried
out every 5 seconds.
Deep discharge protection
If mains power fails to the SPCP332/333, the battery backup is switched on to
provide power. A battery can only maintain a supply for a finite duration when
mains/AC power is cut off for a prolonged period. The battery eventually discharges
itself.
To prevent a battery discharging beyond recovery, the PSU disconnects the battery
when the battery output voltage reaches 10.5 V DC. When the mains/AC is restored,
the battery is recharged.
Wiring the X-BUS interface
The X-BUS interface provides connection of expanders and keypads to the SPC
controller. The X-BUS can be wired in a number of different configurations depending
on the installation requirements.
Note: Maximum system cable length = number of expanders and keypads in the
system x maximum distance for cable type.
Cable type
CQR standard alarm cable
UTP category: 5 (solid core)
Belden 9829
IYSTY 2 x 2 x 0.6 (min)
Fig. 2 shows the wiring of the X-BUS to an expander/controller and a following
expander/controller in Spur Configuration. Terminals 3A/3B and 4A/4B are only used
if using a branch wiring technique. If using a Spur configuration, the last expander is
not wired back to the controller.
See Fig. 2: Wiring of Expanders
1 SPC controller
2 Previous expander
3 SPCP332/333
4 Next expander
Please refer to SPC Configuration Manual of the connected controller for further
details of wiring, shielding, specifications and limitations.
Wiring the inputs
The expander has 8 on-board zone inputs that can be configured as one of the
following:
No End of Line (NEOL)
Single End of Line (SEOL)
Dual End of Line (DEOL) (Fig. 3)
Anti-Masking PIR (Fig. 4)
See Fig. 3: Default configuration (DEOL 4K7)
1 Input 1
2 COM
3 Tamper
4 4K7
5 Alarm
6 4K7
7 EOL
See Fig. 4: Anti-Masking PIR configuration
1 Input 2
2 COM
3 Tamper
4 1K
5 Alarm
6 2K2
7 Anti-masking
8 EOL 1K
Please refer to SPC Installation & Configuration Manual for all possible resistor
values and combinations.
Anti-Masking is only reported as "Alarm" type to ARC if area or system is
set.
Wiring the outputs
The expander has 2 on-board, 1A, single-pole changeover relays that can be
assigned to any of the SPC system outputs. These relay outputs can switch a rated
voltage of 30 V DC at 1A (non-inductive load). Fig. 5 shows the wiring of an active
high output.
Distance
200 m
400 m
400 m
400 m