Installation guide

Mobility and Logistics, Traffic Solutions
Sopers Lane, Poole, Dorset, BH17 7ER
Security classification Unrestricted Page 68 of 84
Version 1 Status Issued
Last Editor Carl Rabe Date 11-Dec-2014
Document Name Stratos Outstation General and ICM Handbook Document No. 667/HB/52250/000
Copyright © Siemens plc 2014. All Rights Reserved. Mobility and Logistics is a division of Siemens Plc
Figure 20 – I/O Board Fixings
7.3.4 Replacing the Internal Backup Battery
Risk of explosion if battery is replaced by an incorrect type.
The following procedure should be followed to change the internal backup battery:
1. Isolate the battery with the ‘BATTERY’ isolation switch on the front panel.
2. Power off the unit and disconnect the mains supply and lamp supply monitor
connector.
3. Loosen the four battery cover nuts as identified in the photo below and remove the
battery cover.