Audio intercom KNZD-30

emergencyfor bankfor railway applications

KNZD-30 Emergency Intercom We are the manufacturer of Handfree telephone intelligent audio digital doorphone intercom With POE power supply electrical equipment in hazardous areas DESCRIPTION ITEM 1. Stainless steel 304 body, vandal & tamper-resistant hardware, easy Installation. 2. Waterproof rating IP55 dust proof. 3. Support induction loop.(optional) 4. Hands-free button, double loudspeaker. 5. Lightening protection to ITU-T recommendation K.21. 6. POE power supply or DC12V. 7. Temperature range from -40 degree to +70 degree. 8. Support echo cancellation. 9. Remote software upgrade, configuration and monitoring. 10. Optional 7 minute time out to release the line if the handset is left off hook. This function upon buyer’s requirement). 11. The housing covered with a layer of reflective label for easy identification at night.Optional 12. Application: Tunnel, metro, railway, LRT, speedway, marine, ship,offshore, mine, power plant, bridge etc.