To combat these line failures and service lapses, the following requirements of the Emergency Communication Device
were adopted into the 2010 version of the A17 and B44 elevator codes.
(a) The two-way communications means within the car
shall include a means to verify operability of the telephone line, where:
- 1) Verification of the telephone line operability shall be automatically performed.
- 2) Verification may be continuous or periodic.
- 3) Periodic verification shall be at least on a daily basis.
- 4) Verification shall not require activation of the two-way communications. If means other than a telephone line (e.g., VOIP, network, intercom, etc.) is used for the two-way communications, similar verification of this equivalent means shall be performed.
If the phone line is disconnected for any reason, the 2100-Alarm
will provide an audible and visible indicator that the phone isn’t working so maintenance staff can quickly restore communication.
Click to watch our 2100-ALARM - How it Works Video