MSA SUPREMA Touch, Installation & Maintenance Instructions Manual, Page: 106 / 309

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System Expansions
SUPREMATouch 105
US
7 System Expansions
Up to 256 inputs can be connected to a SUPREMATouch system. Up to 512 digital outputs can
be given. A complete system for up to 64 inputs can be installed in one 19” rack. Depending on
the size of the current system already in place, various additional modules will be required to ex-
pand the system. It must also be remembered that connecting additional modules, inputs, and re-
lays increases the power demand of the system and may make it necessary to choose a new
system power supply.
NOTE: Any module installed in addition must be registered in the system using the
SUPREMA Manager.
7.1 Connection of Additional Sensors
Up to 256 sensors can be connected to a SUPREMATouch system.
One MAI module makes it possible to connect up to 8 sensors. An appropriate MCI or MPI module
is required for each sensor. Per rack, a maximum of either 8 MAI modules [when the rail-mount
system is used for connecting the sensors: MAT TS or MGT 40 TS module] or 4 MAI modules
[when the rack-mount system is used for connecting the sensors: MAT module] are used; that is,
a maximum of 64 or 32 sensors can be connected per rack.
The connection of additional sensors is based on the assumption that the sensors themselves and
their connecting cables have first been installed properly. The sensors are then to be connected
according to the instructions [
→
Installation and Start-Up Guide].
One of the following procedures must be followed, depending on the extent to which the system
has already been expanded:
1. Not all of the 8 possible inputs on an existing MAI module have been assigned. The number of
free inputs equals the number of new inputs to be connected.
In this case, only additional MPI or MCI modules [corresponding to the number and type of new
sensors to be connected] are required. To plug in the additional MPI or MCI modules, the MAI
module must first be removed from the rack. To avoid alarm or error messages, the inputs belong-
ing to the MAI module [
→
Installation and Start-Up Guide] or the relays belonging to the inputs [
→
Installation and Start-Up Guide] must be inhibited.
When plugging the MPI or MCI modules into the MAI module, be sure that the modules are cor-
rectly assigned to the inputs, that the correct type of module for the sensor in question has been
selected, and that the module has been configured properly. A detailed description of these topics
can be found in the Installation and Start-Up Guide.
After verifying that the expansions are being made correctly, plug the MAI module back into the
rack. The additional inputs must now be preadjusted [passive sensors only], configured, and cal-
ibrated. These steps are described in detail in the Installation and Start-Up Guide.
2. All of the existing MAI modules are assigned, or the number of free inputs is < the number of
new sensors to be connected. A sufficient number of free slots for additional MAI modules are
available in the existing racks. In this case, additional MAI modules [one MAI module required for
every 8 sensors] with the associated MPI/MCI modules are required, depending on the number of
new sensors to be connected. Additional MAT/MAT TS/MUT/MGT 40 TS modules will also be
needed. To avoid alarm and error messages, the connected relays [
→
Installation and Start-Up
Guide] must be locked. The new inputs are recognized by the system; as in case no. 1, however,