Akuvox R20 Series - Door Card Management; Relay Setting; Relay

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Notes:Relay operate a switch and does not deliver power, so user should
prepare power adapter for external devices which connects to relay.
2.6.3. Door Card Management
Valid card information will be shown in the list. Administrator
could delete one card’s access permission or empty all the list.
2.7. Relay Setting
Go to Intercom->Relay, to configure relay.
2.7.1. Relay
There are three terminal of relay: NO, NC and COM. NO
stands for normally open contact while NC stands for normally
closed contact.