Siemens ST950 Handbook page 96

Press any key
The blue LED on the front of the Processor Card starts pulsing in a heartbeat
fashion for 30 seconds. The user has this period in which to ensure the signals
switch is turned OFF and to press the program button on the front of the Processor
Card. If the program button is pressed whilst the signals switch is ON or after the
blue LED has extinguished, the restore operation is not started.
The original WIZ menu is displayed irrespective of whether the user presses any
key.
The restore operation takes several minutes to complete during which time the
controller reboots. Contact via the handset is not possible whilst the restore is in
progress. Completion is indicated by the blue LED remaining permanently lit (on but
not flashing).
The process is completed by turning the controller off then on.
10.3.7 Heart Replacement
It may become necessary to replace the Heart fitted to a CPU card, if it becomes
faulty for example (this will be reported in the Fault Table). The steps to perform this
are described in this section.
Fit New Heart
Take the CPU card and remove the SD card from the slot marked "HEART". Insert
the new SD card into the slot following the guidelines in section 0,
Own Heart
Before using a new SD as a Heart it must be owned. This operation can be carried
out either using the web pages or using WIZ.
Owning the Heart Using Web Pages
Security classification
Version
Last Editor
Document Name
Copyright © Siemens Mobility Limited 2018. All Rights Reserved.
Unrestricted
5
Neil Atkinson
ST950 ICM Handbook
Intelligent Traffic Systems
Sopers Lane, Poole, Dorset, BH17 7ER
Page 96 of 125
Status Issued
Date 18-Dec-2018
Document No. 667/HE/46950/000