17. UPGRADING THE AC TO DC POWER SUPPLY
UNITS
WARNING
High voltages exist within the AC to DC Power Supply Unit.
Disconnect from the ac supply for a period of at least ve minutes
before removing the top cover and carrying out any maintenance
or upgrade operation.
17.1 General
There are two types of AC to DC Power Supply Unit, an 8-Way 50W
and 16-Way 50W. The 8-way unit may be upgraded to 100W with the
addition of a second 50W Switched Mode Module. The 16-way unit
may be upgraded to 100W, 150W or 200W with the addition of 50W
Switched Mode Module(s) and if necessary a 50W Sub Unit.
8-Way AC to DC Power Supply Unit (50W)
Front View
Top View
Rear View
50W Switched Mode AC to DC
Power Supply Module
Earth
Stud
24V 50W DC
Output
Input AC
Supply Voltage
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