
Document No. 545-461
Installation Instructions
July 30, 2008
Figure 3. Front View of the Open Processor/Protocol 2.
MBC0358R1
CAUTION
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C-BUS
CARD EDGE
MMI AND BLN
CONNECTORS
M-BUS
CONNECTOR
MOUNTING
GUIDES
WARNING
LABEL
LATCH
Figure 4. Rear View of the Power Open Processor.
Installing an Additional Power Open
Processor/Open Processor in an
Existing MBC/RBC
NOTE: Power Open Processors can be installed or
removed while the MBC/RBC is powered. If
you are installing a Power Open Processor,
perform Steps 5 through 16 of this
procedure only.
1. Prepare the MBC/RBC and related equipment
for shutdown.
2. Notify appropriate building personnel that the
panel will be shut down and tell them which
equipment is going to be affected. Follow the
necessary shutdown procedures to prevent
damage to any equipment or personnel.
3. Ensure that all previously installed Open
Processors have a good battery to prevent data
loss. The BATT LOW LED indicates a low
battery. If the light is glowing red, replace the
battery before proceeding.
CAUTION:
To avoid equipment damage, do not install
an Open Processor while the MBC/RBC
panel is powered up.
4. Switch the MBC/RBC power switch OFF.
NOTE: Insert or remove the Open Processor
only when the power switch is OFF.
5. Remove the C-Bus cover from the lowest
available slot and discard (see
Figure 2).
6. Remove any remaining M-Bus protective tape
from the M-Bus rails.
7. If there is a warning label over the C-Bus card
on the back of the Power Open
Processor/Open Processor, remove it (see
Figure 4).
8. Remove the protective cap from the C-Bus card
edge (see
Figure 4).
9. Align the Power Open Processor/Open
Processor with the slot number printed on the
mounting rail (see
Figure 2).
10. Align the Power Open Processor/Open
Processor mounting guides with the right-hand
edge of the M-Bus rail (see
Figure 2).
Page 4 of 6 Siemens Building Technologies, Inc.
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