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Nista Devices IP394X Quick Start Manual

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Documentation on all Nista Devices GmbH products can be found on the

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1 How to connect a door lock with an own

power supply

IP394X Door Phones use a voltage free relays to control external devices like electrical door locks.

Relays contacts 'REL1' and 'REL2' pins can be in Normally Open (NO) or Normally Closed (NC)

states. 'Normally Open (NO)' state means the disconnected voltage free loop between 'REL1/2'

pins and 'Normally closed (NC)' state means closed loop between 'REL1/2' pins.

The NO/NC state specified by NC/NO jumper position

Note:

The Relay 2 (REL2) works only in 'Normally Open' mode.

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Table of Contents

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Page 1: Power Supply
1 How to connect a door lock with an own power supply IP394X Door Phones use a voltage free relays to control external devices like electrical door locks. Relays contacts ‘REL1’ and ‘REL2’ pins can be in Normally Open (NO) or Normally Closed (NC) states.
Page 2 2 Controlling a Door lock with its own power supply Any device (e.g. 24V lock) that needs to be controlled via the IP394X relay needs to have the 0V line from its own power supply wired to REL1/2 one pin and the lock wired to REL1/2 second pin;...