2-6 Operating 15088: J 10/22/99
About the display time
The AM2020/AFP1010 has a separate time field in the display for each event that occurs in the system.
All Systems Normal: During periods of no activity, the time field reflects the
current time.
For AM2020/AFP1010
systems with NOTIFIRENET™, the time is synchronized every hour by the network master clock (last
AM2020/AFP1010, INA, or NRT node on network to have its time changed).
Single, unacknowledged event: When an event has occurred
but has not been acknowledged
, and no other event
has occurred, the CRT terminal and the DIA display the time this event occurred.
Multiple, unacknowledged events: The display will show the actual time that the first unacknowledged event
occurred. After the first event is acknowledged, the time shown on the display does not represent the time at
which the event occurred, but instead indicates the time at which the event is displayed.
Single/multiple previously acknowledged events: The time shown for an acknowledged event is the time at which
that event was last placed in the display by activation of the ack/step key (not the time at which the event
occurred).
About the print time
Output from the printer, as well as to the panel's history file, for a particular event (alarm, trouble, acknowledgment,
etc.) includes the time the event was sent to the printer, which, in most cases, is identical to the time the event occurred.
In extreme cases, when many events have occurred within a few seconds, the time printed for a particular event may
differ from the actual event time by up to one minute. After events have been acknowledged, only the event history file
(if enabled) and the system printer will provide a record of the time at which events occurred.
About priorities
Every event the AM2020/AFP1010 displays is prioritized. This includes the processing of incoming alarm and
trouble events, acknowledging events, the clearing of events, and acknowledging the clearing of events (receiving
unit operation only). Security alarms will increment the trouble counter on the terminal status line of the CRT.
NOTE
Security alarms are processed like fire trouble conditions in the AM2020/AFP1010.
The AM2020/AFP1010 processes and displays events under the following priorities, highest priority first:
1) Fire Alarms 8) Cleared Fire Alarms
2) Security Alarms 9) Cleared Security Alarms
3) Supervisory Signals 10) Cleared Supervisory Signals
4) Device Troubles 11) Cleared Device Troubles
5) Disabled Zones 12) Cleared Disabled Zones
6) System Troubles 13) Cleared System Troubles
7) Annunciator Troubles 14) Cleared Annunciator Troubles
In addition, detectors have a higher priority than modules within each detector/module category; the lower the
address, the higher the priority (see list below)
. The display of certain events can be pre-empted by others at the
time they are acknowledged. Pay careful attention to the display when acknowledging events.
Node 1, Loop 1 Detector 1, Loop 1 Detector 2, Loop 1 Detector 3 … Loop 10 Detector 99
(followed in priority by)
Node 1, Loop 1 Module 1, Loop 1 Module 2, Loop 1 Module 3 … Loop 10 Module 99
(followed in priority by)
Node 1, Zone 1, Zone 2, Zone 3… Zone 240
(followed in priority by)
Node 1, System Trouble Indices (in Hex) T00, T01, T02… TFF
(followed in priority by)
Node 1, Annunciator Trouble Indices (in Hex) N00, N01, N02… NFF
Note: Node numbers are applicable only if the panel is connected to NOTIFIRENET™
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