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Introduction and functional characteristics of the elevator intercom system

July 06, 2023
As the name suggests, it is a kind of intercom between elevator car, elevator control room and management center. It can realize three-way or even five-party calls, which is a series in the security intercom industry.

According to the "Elevator Supervision and Inspection Regulations", in the inspection report 4.8 (emergency lighting and alarm devices), the emergency alarm device uses an intercom system to continuously contact the rescue service. The emergency alarm device is powered by the emergency lighting power supply as described in the preceding article (normal When the lighting power is interrupted, the emergency lighting power can be automatically turned on or equivalent power; after the intercom system is activated, the trapped passengers do not have to perform other operations.

It can be understood as: When the passenger is in any emergency (including power outage), as long as the passenger in the car starts the intercom system, it should be able to get in touch with the outside world. In this way, a variety of intercom systems for liaising with the outside world have emerged, which are mainly divided into two types: wired intercom and wireless intercom. The wired intercom is divided into two types: elevator intercom and external telecom. Wireless intercom also adopts two types of duplex signals and GSM mobile phone network. No matter which mode is adopted, as long as the car can communicate with the outside world in an emergency, it can meet the inspection standard.

● Bus transmission, strong anti-interference, and fault detection.

● There are LED two-color indicators to show the working status of each extension, the playback is realistic, clear and loud.

● Hands-free intercom can display the alarms of multiple elevator cars or machine room extensions at the same time, and remember to keep them.

● A single monitor or loop monitor can be performed on the elevator car without any notice at the extension.

● Multi-party intercom can be carried out with elevator car and machine room extension.

● It can be equipped with a decoder board to realize video linkage.

● It can be used in conjunction with optical transceivers to achieve optical fiber transmission.

● External alarm horn, flashing lights, monitoring and statistics software, etc.


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