Premier 24
Installation Manual
Installation
INS248
13
Connecting Devices to the Network
Before connecting keypads, zone expanders and output
modules, isolate ALL power from the control panel (AC
Mains & Battery). Do not continue if there is still power
present on the control panel.
!
Connecting devices with power still present on the
control panel may damage the device or control
panel and invalidate any warranty.
Keypads, zone expanders and output modules are all
connected to the same network terminals located at the bottom
left hand corner of the control panel and may be connected
serially (daisy chain), in parallel (star) or any combination of the
two (see Figure 1, page 14 for wiring details).
!
A maximum of 2 zone expanders, 4 keypads and 1
output module can be connected to the network.
Whenever new devices are connected to the network,
they must be confirmed onto the system using the
‘Confirm Devices’ menu option (see page 80 for details).
Wiring the Network
The networks are made up of four terminals incorporating
power and data. To ensure correct operation, all four
terminals on the device must be connected to the
corresponding terminals on the control panel, or previous
device (see Figure 1, page 14 for wiring details). The table
below shows each terminal and its description:
Terminal
Description
+
+12V Supply
-
0V Supply
T Transmit
Data
R Receive
Data
Devices can be connected using 4-core cable. However, it is
recommended that 6 or 8-core cable is used as the spare cores
can be used to ‘Double Up’ on the power connections if needed.
!
Standard 7/0.2 alarm cable can be used for most
installations. However, under certain conditions it may
be necessary to use screened cable.
Cable Distances
The maximum recommended distance for devices when
using standard 7/0.2 alarm cable is:
•
250m for each branch when using the star (parallel)
configuration
•
When using a daisy chain (series) configuration the
maximum distance will depend on the number of
devices connected on the chain. The more devices that
are connected, the shorter the distance to the last
device (this is due to voltage drop in the cable)
Whichever method of wiring configuration is used, ensure
that the voltage between the ‘+’ and ‘–’ terminals at each
device is no lower than 10.0V when the system is running
on the standby battery.
The table below shows maximum cable runs when one
keypad or expander is installed using standard 7/0.2 alarm
cable with various loads:
Configuration
Max. Cable Run
1.
Keypad + 2 PIR’s @15mA
250m
2.
Ex 2 PIR’s @15mA
250m
3.
Ex 8 PIR’s @15mA
100m
4.
As No. 3 + 16
Ω
Speaker
30m
Distances of up to 1km can be achieved between the control
panel and a device. However, a power supply must be
installed close to the device to power it locally, this will help to
overcome voltage drop caused by the long cable run.
Overcoming Voltage Drop
There are several ways to overcome voltage drop:
•
Use thicker lower resistance cable. Standard 7/0.2
alarm cable has a resistance of 8
Ω
per 100m
•
Double up on the power connections – this will require
using a 6 or 8-core cable rather than a 4-core cable
•
Install a power supply to power the device locally,
remember to common the two negative connections
Installing a Power Supply
When a power supply is installed, the 0V connections on the
power supply must be connected through to 0V on the
control panel and the +12V connection between the control
panel and the device must be disconnected (see Figure 2,
on page 14 for wiring details).
Network Diagnostics
Each network has two LED’s to indicate data flow. The red
LED indicates data flowing out of the ‘T’ terminal and the
green LED indicates data flowing into the ‘R’ terminal. The
table below shows each LED status and its meaning:
LED Status
‘T’ Wire OUT
‘T’ Wire IN
Red LED Flashing
Normal
Normal
Red LED On
Panel Fault
Cable Short
Red LED Off
Panel Fault
Panel Fault
LED Status
‘R’ Wire OUT
‘R’ Wire IN
Green LED Flashing
Panel Fault
Normal
Green LED On
Panel Fault
Cable Short
Green LED Off
Normal
No Data From Devices
!
The LED’s are provided as an aid for fault finding and
therefore should not be completely relied upon to
indicate that there is a fault.
