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English – Installation Instruction
WARNING: This device shall only be connected to power supplies compliant
to EN60950-1, chapter 2.5 ("limited power source").
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 1999/5/EC on
Radio and Telecommunications Terminal Equipment (R&TTE) and 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 SPCK420/421 keypads
The SPCK420/421 is a wall-mounted user interface that allows the engineer to
program the system through the Engineer Programming menus (password
protected). It also allows users to set/unset the system and to control the system
on a day-to-day basis. Three LEDs on the keypad provide an indication of AC
power, system alerts and communications status.
See Fig. 1: SPCK420/421
1. LC-display: The keypad display (2 lines x 16 characters) is used to show all
alert and warning messages and provides a visual interface for programming
the system. The display backlight can be adjusted through the programming
options. See SPC-series Configuration Manual for further information.
2. Alpha numeric keys: The 10 alphanumeric keys provide for both text and
numeric data entry during programming. Alphabetic characters are selected by
applying the appropriate number of key presses. To switch between upper and
lower case characters press the hash (#) key. To enter a numeric digit, hold
down the appropriate key for 2 seconds.
3. Leverage access tabs: The leverage access tabs provide access to the
keypad back assembly clips. User can unhinge these clips from the front
assembly by inserting a 5 mm screwdriver into the recesses and pushing
gently (see section - Connecting the SPCK420/421).
4. Back assembly securing screw: This screw is used to secure the front and
back assemblies on the keypad. This screw must be removed to open the
keypad.
5. LED Status Indicators: The LED status indicators provide information on the
current status of the system.
LED
Description
Indicates the presence or failure of the mains supply.
AC
FLASHING - AC Mains fault detected.
Mains
(Green)
STEADY – AC Mains OK
Indicates system alert.
FLASHING - System Alert detected; display indicates the
location and nature of alert. If the system is SET, then NO
System
indication is given of system alerts.
Alert
OFF – No Alert detected
(Yellow)
If a Keypad is assigned to more than one area, LED does not
indicate an alert condition if any of those areas is SET.
Indicates the status of the X-BUS communications when in FULL
ENGINEER programming.
Flashes regularly (once every 1.5 seconds approx) indicates that
the X-BUS communications status is OK.
X-BUS
Flashes quickly: (once every 0.20 seconds approx) indicates the
Status
last in line Keypad or Expander (excludes star and multi drop
(Red)
configurations).
If the Keypad is being installed for the first time and power is
supplied to it before a connection to the controller X-BUS
interface is made the LED remains in the ON state.
6. Soft function keys (left & right): The left and the right soft function keys are
context sensitive keys to navigate through and program the system.
7. Proximity device receiver area: If the Keypad has been fitted with a
proximity device receiver (SPCK421), users should present the Portable ACE
Fob to within 1 cm of this area to SET/UNSET the system.
8. Multi-functional navigation key: The multi-functional navigation key in
combination with the keypad display provides an interface for programming
the system.
Overview of keypad types
Type
Standard Functionality
Basic
SPCK
Keypad
420
Keypad with
SPCK
Reader
421
The model information may be obtained from the label on the inside back cover of
the keypad, as displayed in Fig. 7.
See Fig. 7: Keypad label
1
Label on inside of keypad
2
Pull-down label for providing installer details. Fill in all relevant details when
installation is complete
Wireless support
An optional SiWay RF-Module (SPCW112) is available to provide a wireless
interface (868 MHz) for the keypads. This kit enables Intrunet wireless devices (for
example, remote controls, magnetic contacts or motion detectors) to be enrolled
on the system. Refer to the SPCW112 installation instructions for details of
mounting the wireless module in the keypad.
Wall mounting the keypad
Install the keypad at human eye height (130-140 cm) for clear display
visibility.
Proximity Detection
To wall mount the SPCK420/421:
Remove the securing screw using an appropriate screwdriver and press
firmly on both leverage access tabs until the back of the keypad detaches
with a downward motion.
See Fig. 3: Keypad mounting elements I
1
Securing screw
2
Leverage access tabs
Position the back of the keypad into the desired location on the wall
allowing the alarm cables access through the cable access area. Mark the
position of the keypad on the wall using the positioning screw hole and
remove the keypad.
See Fig. 4: Keypad mounting elements II
1
Postitioning screw hole
2
Securing screw hole
Drill the remaining 2 holes and screw the back of the keypad onto the wall
ensuring that the alarm cables are easily accessible through the cable access
area. Remove the breakout tabs to allow bottom or side cable access to the
keypad.
The bottom breakout must not be removed for EN50131
See Fig. 4: Keypad mounting elements III
3
Tamper spring hole
4
Cable access area
5
Side breakout tab
6
Bottom breakout tab
7
X-BUS interface on the keypad PCB
Connect the wires to the X-BUS interface on the keypad PCB (see section
5- Connecting the SPCK420/421). Ensure that the power terminals (+12V
and 0V) are connected to the corresponding wires on each cable.
Re-attach the front of the keypad to the back by aligning the securing clips
into the leverage access tabs and slowly but firmly pressing the top of the
keypad until it clicks into place.
Drill a hole in the wall in the marked position and align the positioning screw
hole directly over it. With the back of the keypad in a horizontal position,
mark the exact position of the remaining 2 drill holes through the securing
screw holes.
Connecting the keypad
Never run keypad wires alongside telephone wires, high voltage wires, or
transmitting antennas. Keypad wires should be wired separately and not in
the same cable with other devices (telephone, PIRs, and so on). Do not use
the keypad as a junction box for wiring power to sensors.
The SPCK420/421 receives its power (12 VDC) and communications via
connections to the terminal block interface inside the keypad housing.
To access this terminal block the front and back keypad assemblies must be
detached by removing the securing screw using an appropriate screwdriver.
On removing the securing screw, insert the top of a 5 mm flat-head screwdriver (or
equivalent) into one of the leverage access tabs and press in slowly but firmly until
the front assembly moves out from the back of the keypad. Repeat this operation
on the second access area until the back of the keypad detaches with a downward
motion.
See Fig. 3: Keypad Features I
1
Securing Screw
2
Leverage Access Tabs
See Fig. 5: Keypad Features II
1
Front assembly securing clips
2
Manual addressing switches
3
X-BUS interface terminal block
4
Optional wireless module connectors
5
Termination Jumper. This jumper as a default is always fitted, however,
when wiring for Star configuration this fitting should be removed (see section
Wiring the X-BUS interface).
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. 6 shows the wiring of the X-BUS to an expander/controller and the following
expander/controller in Spur Configuration. If using a Spur configuration, the last
keypad is not wired back to the controller.
See Fig. 6: Wiring of expanders
1
SPC controller
Previous expander
2
SPCK420/421
3
Next expander
4
Please refer to SPC Configuration Manual of connected controller for further wiring
instructions, shielding, specifications and limitations.
Distance
200 m
400 m
400 m
400 m
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