Maximum cable usage per circuit
&
Cable usage per circuit of:
£
Zone circuit - 100 metres maximum.
£
Clean contact Input circuit - 300 metres maximum
£
LED output - 30 metres maximum
£
Relay output - unlimited.
End-of-line (EOL) devices
¨
An input circuit require in series with the contacts
a 10K resistor plus a 10K EOL resistor (supplied).
¨
A zone input circuit is monitored with an EOL
capacitor unit (supplied).
Zone input functionality
A zone input can have conventional detectors and
manual call points (MCPs) connected. All MCPs must
have a 470 Ohms or 3V9 zener diode in series with
normally open contacts. The zone input can take a
maximum load of up to 2mA at 24V nominal (with
minimum operating voltage of 18V). The zone circuit
must be terminated with an EOL capacitor unit.
Confirmation Input / Output functionality
An input and an output of a module can be paired to
operate in a confirmation mode. External equipment
can send an acknowledgement upon receiving a
signal from the module, this is called 'confirmation
input'. External equipment can also receive an
acknowledgement from the module upon sending it a
signal, this is called 'confirmation output'.
S4 1-Input Interface
The single input interface module monitors a circuit of
either normally open or closed contacts. The input
can be programmed as a fire, fault, supervisory or
confirmation input. Optionally it is also possible to
configure the input for a zone of conventional
detectors and MCPs. In all input modes the interface
will detect short and open circuit faults.
S4 4-Input /Output Interface
The quad input/output interface module can be
configured to provide any combination of up to four
inputs or outputs. An output of either normally open
or normally closed relay contacts can be used to
control a load of up to 1A @ 30Vdc/ac. Optionally an
output can be configured to provide 1.5mA at 24V dc
to drive an LED that can be normally On or normally
Off. An input can be programmed as a fire, fault,
supervisory or confirmation input. Additionally it is
possible for channel 1 to be used as a Zone input,
which allow connection of conventional detectors and
MCPs to this module. Zone input can be configured
to have alarm validation feature and configurable
reset time. The alarm validation feature can be used
to minimise false alarms by suppressing a fire input
for a period of time defined during commissioning.
The zone reset period can be extended to allow for
different types of fire detectors.
Configure the links to the required mode.
S4 1-Output & 1-Input Interface
This interface module can be used to control a
resistive load of up to 1A @ 30Vdc/ac via a set of
single pole change over contacts, see wiring
diagrams. In addition there is an input to allow the
monitoring of the external equipment. In this
application the input must be configured as a
confirmation input. A confirmation input generates a
fault if a change of state is not seen within the
predefined period of a specific output.
Configuration
"
Use the Commissioning Tool
Version 1.21 or greater to commission these
interface modules.
Data and Installation
Interfaces (Low voltage)
2
4188-873_issue 4_Pt.1_02/09_S4 LV Interfaces
Removable
terminal blocks
Light pipe
Other
modes
Confirmation
Input
Zone input
Switch input
LED Output
modes
Relay Output
mode
(factory settings)
Link Configurations
Channel
4
Channel
2
Channel
3
Channel
1