NSR-300 IP network relay REG light gray. IP switching relay for function-related switching processes. Switching contacts with 6 normally open contacts and 2 changeover contacts, switching functions (door opener DTMF, light DTMF, incoming/outgoing call setup, call connection, SIP registration) and relay mask (individual time-controlled switching processes). Operation with IP door module (via HTTP request) and configuration via web interface. Switch-on time can be configured depending on the function, Ethernet interface (100Base-TX) and with LED control display (supply, switching process). Device as DIN rail mounting. Notes: Mains transformer is not included.