AS 7240.2:2018 pdf free.Fire Detection and Alarm Systems Part 2: Fire detection control and indicating equipment (ISO 7240-2:201 7, MOD).
4.4.5 Other indications during the fire alarm condition
4.4.5.1 If faults, disablements or tests are indicated by means of separate light-emitting indicators, and such indications are suppressed in the fire alarm condition, it shall be possible to reveal these by means of a manual operation at access level 1 or 2.
4.4.5.2 If the fire alarm indications are on an alphanumeric display, the following shall apply to the display of other information on the alphanumeric display.
a) Information not related to the fire alarm condition shall be suppressed unless the display has more than one window, one of which is exclusively reserved for fire alarm indications.
b) Suppressed indications of faults, disablements and optionally, test or supervisory modes, shall each be capable of being displayed at any time by manual operations at access level 1 or 2. These operations shall be different from, or additional to, that specified in 4.4.3.2 d) for displaying fire detection zones in alarm and shall display the suppressed indications independently of each other.
c) Fields or the alarm window, may be temporarily suppressed to permit the display of faults, disablements and optionally, test or supervisory modes, however, the display shall meet the requirements of 4.4.3.2 a), 4.4.3.2 b) and 4.4.3.2 c) within 30 s of the suppression.
4.4.6 Reset from fire alarm condition
4.4.6.1 FDCIE shall be reset from the fire alarm condition at access level 2, by means of a separate manual control, or as specified in 4.6.1.5 or 4.9 (if provided). This control shall be used only for reset and may be the same as that used for reset from the fault warning condition.
4.4.6.2 Following a reset operation, the correct functional conditions, corresponding to any received signals, shall either remain, or be re-established within 60 s. Reset shall either be completed within 20 s following the manual operation, or where a reset cannot be completed in 20 s, it shall be indicated within 20 s that the reset process is running.
4.4.7 Output of fire alarm condition
4.4.7.1 At least one output that signals the fire alarm condition shall be provided, which may be an output in accordance with 4.4.8, 4.4.9 or 4.4.10.
4.4.7.2 Except where 4.4.11 or 4.4.12 or both apply, FDCIE shall activate all mandatory outputs within
3 s of the indication of a fire alarm condition.
4.4.7.3 Except where 4.4.11 applies, FDCIE shall activate all mandatory outputs within 10 s of the activation of any manual call point.
4.4.8 Output to fire alarm signalling function — Optional function
4.4.8.1 FDCIE shall have provision for the automatic transmission of fire alarm signals to the fire alarm signalling function (see ISO 7240-1:2014, Figure 1, item C). In this case, the following shall apply.
a) It shall be possible to disable fire alarm signalling devices at access level 2.
b) Following disablement, it shall be possible to re-enable fire alarm signalling devices at access level 2.AS 7240.2 pdf download.