Introduction 

On Sunday 31st October 2021 the clocks will be going back by 1 hour due to the end of Daylight Saving Time.

The purpose of this document is to ensure that all of your Mitrefinch units connected via a Fire Evacuation System (FES) are correctly updated with the adjusted time on Sunday morning. If you are unsure whether you have a FES System then an example screenshot is shown below: 

Should you require any assistance or have any questions about the instructions then please contact Mitrefinch Support by emailing support@mitrefinch.co.uk or raise a ticket via our support portal website by clicking here.  Alternatively, please call 0330 726 0090.

How to enable the Time Change within FES

1. On the FES unit, exit the current FES session by Pressing Crtl + F10 together then when prompted ‘Y’. This will take you to your DOS prompt. 
   
2. Type IPMENU or (if using FES version 5.00 and above) enter MODMF at the command prompt then press Enter. This should load your Interactive Poller Utilities. 
   

If it does not, then type CD IPMF and press Enter.  Then type IPMENU or MODMF (depending on version) and press Enter. 

3. In versions below 5.00 FES use the arrow keys and then ‘Enter’ key to select “System Parameters” and then “Miscellaneous details”.  Or if version 5.00 and above just select “Miscellaneous details”.  Then press page down twice and at the bottom of the screen under the section ‘BST changes’ it should contain two changes dates. Ensure that ‘Back’ (highlighted in the red box below) contains the date 31-10-2021:
   

Useful tip - In order to avoid having to perform this change again for the Spring 2022 time change, enter 27-03-2022 in the ‘Forward’ section as well.

4. Press F1 to Accept and the Escape key until you return to the DOS prompt
   
5. Then type IPMF to return back to the main FES screen.