Karel MS48 Installation & Maintenance Guide
Edition 3.2
5
I.1. MB48 MOTHERBOARD &
EXP48 EXPANSION MODULES
The MB48 motherboard consists of the microprocessor, utility, DTMF, switching,
line and extension circuitries. See the following figures for the location of these
circuitries and the operational flow diagram of MB48 motherboard.
Figure A-3
Figure A-4
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