The Slave Expansion Module (SEM01) with its own battery charging circuit provides another
8 Inputs and 8 Outputs with dedicated Tamper Input and Siren, Strobe and Speaker
outputs. A Local Expansion Module can be connected to the SEM to provide another 8
inputs and 8 outputs (LEM01) or 8 inputs (LEM02) in the same enclosure, to give a
maximum of 16 Inputs and 16 Outputs with the Slave.
Up to 5 Slaves (SEM) with their own Local Expansion Module can be connected to the Main
Comfort panel for a maximum of 96 Inputs and 96 (open-collector) Outputs.
Remote Input/Output Modules (RIO) each provide 8 digital or Infrared Inputs. These RIO
digital Inputs cannot be used as alarm inputs like those of the Main and Slave Expansion
Modules. Infrared Receivers (IRR01) can be connected to any RIO input to allow Remote
Controls like Comfort RC01 to send commands to Comfort (received Infrared Responses).
Normally Open switches can also be connected to each RIO input to activate Responses.
Up to 15 RIOs can be connected to Comfort II Ultra to provide 120 Digital/IR inputs and a
further 120 open-collector outputs.
The Universal Communications Module UCM/USB or UCM/ETH provides Interface to PCs. It
is used for upload/download programming using the Comfigurator software tool, and for
interfacing to third-party software like WizComfort and other systems with serial interfaces
like AMX, Crestron, and Homevision.
Other types of UCM include UCM/KNX for interface to KNX bus, or Instabus; UCM/CBUS for
interface to Clipsal by Schneider C-BUS;. Up to 8 UCMs can be connected to a Comfort
system.
Design Considerations and Applications
Run Additional Cables
If you require a 6-core cable to a part of a building, run an extra 6 core cable as well, you
never know what may be needed in the future! If possible, use screened cables for
trouble-free installations. .
Current Consumption
It is very easy to underestimate the load which can be placed on a system unintentionally.
Before starting to run cables, find-out the current draw from all the devices to be attached
to the system FIRST. It may be that supplementary power supplies will be needed sooner
than you think. If the standby current is over 850 mA install a Power Supply Unit (PSU) or
SEP01 which has its own power supply and backup battery
Plan for the Future
Comfort is highly expandable. Installers can benefit from ongoing upgrades and
modifications as there is so much add-on potential. Selling to an existing customer is
always easier than finding new customers. A customer may wish to connect to a Central
Station or add security lighting. They may require to operate the curtains, or they may just
want more detection points, a camera or Keypad, additional intercoms or even flood
detection!. A little forethought during the initial installation can make upgrading a system
in the future so much easier. Future-proof every installation for Comfort.
Always allow for extra capacity in the cables. If more zones or outputs are required, run
extra cables to the other end of the building so you can install Keypads. Customers may
have already shown an interest in these things and plan to add them at a later date. If you
are already taking cables in a certain direction, increase the capacity. You may need to
estimate what a customer might need in the future. Some companies prefer to install
Comfort as a basic system and take a planned approach to their marketing by sending
special offers throughout the year to stimulate the interest in time for their annual
inspection and do the update at the same time.
End of Line Resistors
Comfort II Supplementary Installation Manual
9
