SENSALINK SENLPS G (96232305)
This latest generation SensaLink Bus Power Supply is for
use only with Thorn’s SensaLink Digital range of presence
detectors and accessories. Up to 99 SENSALINK
SENLPS G can be connected together (per installation)
increasing capacity to almost 20,000 devices on a single
SensaLink Digital system.
Installation & Connection
The SENSALINK SENLPS G Bus Power Supply should
be positioned in a readily accessible location, usually
adjacent to the mains distribution board for the area being
controlled. A fused 3A, 230 volt mains supply is required
which should be dedicated to the SENSALINK SENLPS G
for maximum reliability. This device MUST be earthed. It is
recommended that Double-pole Isolation is provided.
The SensaLink Digital bus network should be wired using
which
starts from the bus power supply and connects into every
SensaLink Digital device. Up to 200 devices can be
connected to one SENSALINK SENLPS G. Do not
connect mains to the SensaLink Bus.
This equipment should be installed only by suitably
qualified personnel.
1.5mm
mains-rated, unscreened twisted pair,
Wiring Topology
The SensaLink Digital Bus may be wired in a ‘free
topology’ - i.e. any combination of spurs and rings. It is
recommended however, that a ring topology is used so
that the integrity can be checked. It should be wired from
the ‘OUT’ terminals to every device on the system, coming
back to the ‘RETURN’ terminals. The polarity of the
SensaLink Digital Bus must always be maintained. The
switch to the left of the bus terminal blocks, when pressed,
performs an integrity check on the bus. A correctly
installed system will cause the green LED below the
switch to flicker.
9
9
Screen
B
A
Screen
Z
Y
2 PAIR BACKBONE
2 PAIR BACKBONE
ADDRESS
SWITCHES
ADDRESS
SWITCHES
GLOBAL OVERRIDE INPUTS
GLOBAL OVERRIDE INPUTS
N
L
-
+
+ -
OUT
RETURN
230V 50Hz
230V 50Hz
RESET
SW ’S
LOAD
SHED 1
SHED 1
LOAD
SHED 2
SHED 2
EM
TEST
ALL ON
FULL
BUS CONNECTIONS
BUS CONNECTIONS
POWER SUPPLY
POWER SUPPLY
TEST
2
The spine should be linked to AB and YZ as shown (i).
Note that the screen is not shown, however, it must be
connected at each SLKGPSU.
(ii)
Connecting Multiple SENSALINK SENLPS G
On larger installations where multiple SENSALINK
SENLPS G units are required, they may be connected
together via a ‘spine’ or ‘backbone’. The spine should be
w i r e d
u s i n g
2 4 AW G
t w i s t e d
p a i r,
s c r e e n e d
communications cable, e.g. Belden 9502. When
SENSALINK SENLPS G are linked in this way Common
Zone 1 becomes a ‘Building Zone’, providing building-
wide Common Zone 1 linking. The maximum length of the
spine should not exceed 1200m with all SENSALINK
SENLPS G being linked in a single spur.
Devices on the bus may be connected in any order.
Spurs are permissible but are best avoided as they will not
be checked during the integrity test.
Accurate as-fitted records will assist in fault finding.
The bus may be run with mains wiring providing twisted
pair bus cable as detailed above is used throughout.
(i)
9
9
Screen
B
A
Screen
Z
Y
2 PAIR BACKBONE
GLOBAL OVERRIDE INPUTS
RESET
SW ’S
LOAD
SHED 1
LOAD
SHED 2
EM
TEST
Set the address switches of each SENSALINK SENLPS
G on the system to any unique number from ‘00’ to ‘99’. At
least one unit must be set to address ‘00’ to act as
‘master’.
9
9
Z
Y
ON
Screen
B
A
Screen
2 PAIR BACKBONE
GLOBAL OVERRIDE INPUTS
RESET
SW ’S
LOAD
SHED 1
LOAD
SHED 2
TEST
MLS Bus Power Supply
RB2000
MLS Bus Power Supply
RB2000
MLS Bus Power Supply
RB2000
SensaLink
Bus
SensaLink
Bus
SensaLink
Bus
SensaLink
Bus
SensaLink
Bus
SensaLink
Bus
To further
SensaLink
Digital devices
To further
SensaLink
Digital devices
To further
SensaLink
Digital devices
To further SENSALINK
SENLPS G units
Example Wiring of System
SENSALINK
SENLPS G
SENSALINK
SENLPS G
SENSALINK
SENLPS G
Spine
Spine
