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Door control system: Difference between revisions
From London Hackspace Wiki
emergency exit door release buttons.
(emergency exit door release buttons.) |
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<blockquote>The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at or repair.</blockquote> ''- Douglas Adams, 'Mostly Harmless''' | <blockquote>The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at or repair.</blockquote> ''- Douglas Adams, 'Mostly Harmless''' | ||
== Adding a card== | == Adding a card== | ||
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sudo supervisorctl restart all | sudo supervisorctl restart all | ||
=== Emergency Exit door release === | |||
Next to all doors that act as emergency exits, and may need to be held open in the event of firefighters needing to retain access back into the building in the event of a fire, there are green 'break glass' style emergency exit buttons. Do not use these except in an emergency situation. You don't need to break the glass - which is actually plastic - but if they are triggered, then you will need a special key to reset them. The key is an orange plastic key, one of which is kept in the 1st Floor comms room doorbot enclosure, and the emergency exit button is reset by inserting the key into the underside of the emergency door release. | |||
All normal door exit buttons used in the hackspace are failsafe, that as well as signalling to the electronics to open the door (with a timed release), will also use another contact to break the circuit that would hold the door closed while the button is pressed. | |||
[[Category:Systems]] | [[Category:Systems]] | ||
[[Category:Infrastructure]] | [[Category:Infrastructure]] | ||
