Siemens ST950 Handbook page 18
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Also See for ST950:
- User manual (178 pages) ,
- Handbook (154 pages) ,
- Installation method statement (14 pages)
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Figure 3 – Controller Cabinet showing new equipment
Figure 4 and Error! Reference source not found. show the ST950 controller in a
6U 19" rack.
The left-hand part of the rack contains the mains distribution unit (MDU) that
contains the logic power supply, the lamp supply relays, the maintenance sockets
and the controller's power off/on switch.
Situated in the middle are the four Lamp Switch cards, connected to each other,
and to the CPU Card, by the phase bus ribbon cable connectors across the front.
Connectors on the back of the rack provide the mains connections to the Lamp
Switch cards. Each Lamp Switch card can control up to eight phases, giving a total
capability of 32 phases, with the first card being the one closest to the Main
Processor (i.e. on the right), with phase A at the top.
There is space above and below the controller rack for further equipment racks to
be fitted, as shown in Figure 2. These can accommodate loop detector cards and
2
Gemini
equipment.
For some cabinets additional kits of parts are available. These are listed on the
ST950 Family Tree (667/DZ/46950/000). The kits provide the necessary installation
Security classification
Unrestricted
Version
5
Last Editor
Neil Atkinson
Document Name
ST950 ICM Handbook
Copyright © Siemens Mobility Limited 2018. All Rights Reserved.
Sopers Lane, Poole, Dorset, BH17 7ER
The Controller Rack
Page
Status
Date
Document No.
Intelligent Traffic Systems
18 of 125
Issued
18-Dec-2018
667/HE/46950/000
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