MSA SUPREMA Touch, Installation & Maintenance Instructions Manual, Page: 202 / 309

MSA AUER
MSA
Installation
SUPREMATouch 201
US
10.10 System Ports (MST Module)
The system expansions and system connections described in the following can be realised by us-
ing the MST module, plugged into the rear of the rack.
Fig. 141 MST Module Connections as from Module version 8
Fig. 142 SUB-D pin assignment
For simplification of the CAN bus connection at systems with several racks, the MST module has
been revised. For every CAN bus an additional connection was added so that the T pieces are
saved when connecting racks (Chapter 10.5).
CAN Bus Ports (CAN-A/CAN-B)
The two system buses in the system, i.e., CAN-A and CAN-B, are provided to allow expansion of
the system (systems with several racks). The measurement value input (MDA + MAI module) or
the switching outputs (MGO module) can be set up separately from the main rack to reduce the
cabling. In systems without redundancy, the individual racks are connected to each other by
ready-made CAN bus cables via the CAN-A bus port (Chapter 10.4).