AJAX Ajax Hub, Руководство пользователя

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The time to generate a message regarding the loss of communication
between the hub and the Ajax Cloud server is calculated using the following
formula:
(Ping interval * 4) + Time lter
With the default settings, Ajax Cloud reports the hub loss in 9 minutes:
(60 s * 4) + 300 s = 9 min
Sirens settings
The menu contains two groups of siren settings: siren activation
parameters and siren after-alarm indication.
Siren activation parameters
If the hub or detector lid is open. If enabled, the hub activates the
connected
if the body of the hub, detector, or any other Ajax device is
open.
If in-app panic button is pressed. When the function is active, the hub
activates the connected sirens if the panic button was pressed in the Ajax
app.
Server Ping Interval (sec). Frequency of sending pings from the hub to
Ajax Cloud server. It is set in the range of 10 to 300 s. The
recommended default value is 60 s.
Connection Failure Alarm Delay (sec). It is a delay to reduce the risk of
a false alarm associated with the Ajax Cloud server connection loss. It
is activated after 3 unsuccessful hub-server polls. The delay is set in
the range of 30 to 600 s. The recommended default value is 300 s.
Disable alerts when the connection with the server is lost. Ajax apps
can notify about the hub-server communication loss in two ways: with a
standard push noti cation signal or with a siren sound (enabled by
default). When the option is active, the noti cation comes with a
standard push noti cation signal.
sirens