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Earthing
When installing the module in a Rebis Rack Frame ensure that it is
firmly screwed in and that the rack is earthed, as it is essential both for
safety and screening that the front panel is ultimately connected to
mains earth.
Memory Expansion
RAM5S memory expansion cards are simply installed by removing
the screening plate, plugging the new card into the existing memory
card and securing it with the two screws provided. The double switch
located on the bottom edge of the central PCB should then be adjusted
as follows;
Standard Module
Plus one expansion card - 1 OFF 2 ON
Plus two expansion cards - 1 ON 2 OFF
Plus three expansion cards - 1 OFF 2 OFF
On occasions when finer edit resolution is required memory cards can
be bypassed using the above settings.
Remote Control
Most of the functions of the RA226 can be quite simply remote con-
trolled as shown in the connection diagram.
To enable remote control of the START/END functions the switches
located on the rear edge of the outer PCB should both be switched off.
Important: These switches disable the front panel START/END con-
trols.
Rack Mount Power Supply
When the RA226 is used with the Rebis Modular Rack Mount power
supply and a selection of other modules in the same rack the power but-
ton on the power supply has to be pressed twice quickly to achieve the
full 40V required to drive the RA226.
This is due to the surge current limiter built into the regulator and is
not a fault.
- 1 ON 2 ON
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