Definition
NO (Normally Open) - This is a contact which remains open (as default) until activated, during the "active" state the contact provides a closed circuit and starts conducting.
NC (Normally Closed) - Is the opposite of a NO contact. The contact will remain closed (as default) until activated, during the "active" state the circuit breaks and stops current flow.
ACC200 For operation with a door access control panel and lock, the exit button is provided with NO/COM terminals.
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ACC202, ACC250-252 For operation with a door access control panel and lock, the exit button button is provided with NC or NO and COM connection wires. |
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ACC253 For operation with a door access control panel and lock, the exit button is provided with NC or NO.
The ACC063 also has a built in blue LED which requires 12V DC (not supplied with the product). |
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