Intelligent Detector Backplane In St900 Large Outercase - Siemens ST750 Configuration Handbook

3.7.2 Intelligent Detector Backplane in ST900 Large Outercase

When a ST900 Larger Outercase is specified, a 19" Swing Frame will be required and one or
more 19" Rack Assemblies. The Intelligent Detector Backplanes will be mounted as shown in
Figure 21. The maximum number of Detector Cards which can be specified is eight. The items
that should be ordered for this configuration are listed Figure 22. For information on the
connectivity please refer to paragraph 3.7. If a Freestanding TC12 OTU has been specified at
some stage then the 19" Rack Assembly will need to be positioned or moved to the secondary
position, show in Figure 5.
Detector
Cards in
example
positions
Note SLD4
Detector
PCB
replaces the
ST4S
shown
Warning! Figure 21 shows a Gemini unit, full configuration, details of which are detailed
later in this document. It is important that the Gemini Last Gasp Dial Battery, within the
Gemini Power Supply Unit, is orientated correctly; the battery terminal must be facing up.
If the unit is to be mounted in such a way that the battery terminals are not facing up then it is
necessary to implement certain modifications to ensure that the battery is not operating upside
down. Please refer to document 667/HB/32600/000 for the necessary modifications.
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Figure 21
Figure 22
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008
Nathan Fearnhead
Configuration Control
Mobility is a division of Siemens Plc
Mobility and Logistics, Traffic Solutions
Sopers Lane, Poole, Dorset, BH17 7ER
19" Rack
Assembly
in its
primary
position
Example
position
for Gemini
Unit
26 of 73
Page
Released
Status
16/06/2017
Date
667/CC/32750/000
Document No.