EDAC Electronics Ltd. EDAC700 RTU Technical Reference Manual page 55

Problems with entering PIN Numbers
This problem is with "Cancel by PIN number", not "Cancel by any key". "Cancel
by any key" will work fine if the rules outlined below are observed.
With one Group configured, the user can enter a PIN at any time, like after the
active input message. There is no problem with this set up.
When we have multiple groups, triggered at the same time, and one call list, it
can be difficult to get a PIN accepted if it is not entered at the correct time. This
is due to each group potentially having different PIN numbers, and the correct
PIN must be entered while the EDAC700 RTU is speaking the appropriate Group
message or active input message.
With multi groups you can only enter your PIN number while the appropriate
group message, or the active input message for that group is being spoken.
It is logical to want to enter a PIN after hearing the group and active input
message. This cannot be done, as the window for the correct pin has closed. The
EDAC700 RTU will now be speaking the next group message and active input
messages.
This could be problematic, with some users. The user needs to wait until the
message replays from the start and enter the PIN during the group message.
The first digit of the pin should be held down slightly longer, this allows the
EDAC700 to hear the key press and pause the speech while the user enters the
rest of their PIN number.
This problem will only show up under quite specific conditions when two or more
groups get triggers and are connected to one call list and PIN numbers are being
used rather than "cancel by any key".
This PIN problem could possibly make for problems with training end users. We
do not think it is acceptable to try and train operators to enter PIN numbers at
exactly the correct time. You should be able to enter any group PIN at any time
and have it applied to the correct group.
This problem will be fixed as a high priority in an upgrade that will be available in
the near future.
I cannot dial in to cancel an alarm when notified by Alpha Paging/SMS text
messaging & it also does not self-cancel when the trigger is removed
When doing paging or SMS, if the wait time is zero (default) the EDAC700 RTU
will not update input status between calls, while in the wait state, which happens
between alarm notification calls.
If the Input trigger clears itself, it may take several calls before the EDAC700
RTU stops making alarm notification calls. You need to set the wait time between
calls to 1 minute.
The wait time is in "Call List" configuration. If it is not set to 1 minute or more the
user cannot ring into the EDAC700 RTU to cancel the alarm.
Date: 31/10/12 Page 55File: 700b Technical Manual ver1.9.3.docm