About The Display Time; About The Print Time; About Priorities - Notifier AM2020 User Manual

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.
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
2) Security Alarms
3) Supervisory Signals
4) Device Troubles
5) Disabled Zones
6) System Troubles
7) 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
Node 1, Loop 1 Module 1, Loop 1 Module 2, Loop 1 Module 3 ... Loop 10 Module 99
Note: Node numbers are applicable only if the panel is connected to NOTI•FIRE•NET™
2-6
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(followed in priority by)
(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
8) Cleared Fire Alarms
9) Cleared Security Alarms
10) Cleared Supervisory Signals
11) Cleared Device Troubles
12) Cleared Disabled Zones
13) Cleared System Troubles
14) Cleared Annunciator Troubles
Operating 15088: J 10/22/99