![EDAC 400-02 Getting Started Download Page 9](http://html1.mh-extra.com/html/edac/400-02/400-02_getting-started_2357134009.webp)
Page 9 of 40
HOW THE EDAC 400-02 WORKS
Run Mode
On power-up, the EDAC 400-02 will be in RUN mode assuming no trigger is present. RUN mode
can be identified by a horizontal line on the display with a flashing dot.
The EDAC 400-02 uses three distinct states when in RUN mode:
Active
When the EDAC 400-02 is active (in alarm state) the unit will make alarm notification
calls.
Cancelled or acknowledged
When the EDAC 400-02 is active (in alarm state) the unit will make alarm notification
calls. When these active trigger states (inputs) have all been acknowledged the EDAC
400-02 is said to be in a cancelled state. This means that the EDAC 400-02 will not make
any further calls. The input is still present however and it must be removed in order to re-
trigger the EDAC 400-02. Any new trigger on a different alarm input will initiate a new
alarm notification call sequence.
Cleared or Idle
The input is cleared when it no longer meets the input criteria (e.g. trigger on closed
contact and the contact is open). The EDAC 400-02 is idle when all inputs are clear (i.e.
no inputs present).
These states can normally be identified by the following symbols on the display.
=
Cleared or Idle
(default at power up)
=
Active
(Looking for dial tone / dialling)
=
Active
(Call connected, speaking / sending messages)
=
Active
(In retry loop, waiting to make next call)
=
Cancelled or acknowledged
(EDAC 400-02 cancelled)
Making Alarm Notification Calls
When an event triggers an alarm notification call, the EDAC 400-02 will dial through the
telephone number call list. When the call is answered, the voice message is spoken or the pager
message sent. This process is broken down into the following stages:
1. All inputs are idle (no alarms are being triggered).
2. An input meets the alarm-trigger criteria (see functions F51 and F52).
3. The EDAC 400-02 waits for the trigger/dial time to elapse (the time between the alarm
trigger and the first phone call being made). If the input is removed before the EDAC 400-
02 has had time to place a call the input state goes back to idle unless the input is set to
latch. (see functions F09, F52 and F96)
4. The EDAC 400-02 will now make calls to the people on your call list (see functions F07
and F11).
When a call is answered and it is a voice call (telephone, cell/mobile phone, etc) it will speak the
message sequence outlined below.
Your site message (identifies the site)
The Input messages (identifies which alarms have been triggered)
The cancellation message (if you cancel the alarms)
“The following Inputs have
been acknowledged”
The Input messages again (if the alarms are cancelled but the Input triggers have
not been removed)
The site message is repeated at the end of the message sequence.