Technical / Programming Manual
FT128 Rev 2.2
66
6.2 Units Connected To Optional RS485 Interface
A combination of up to eight External Presentation Units (1728) or Alert Annunciation Units
(1736) can be connected to the RS485 interface
terminals on the termination board or
directly via (J1:15-16) in FT128. (Power supply at J1:13-14).
Note: RS485 interface module 4552 (chip) must be installed in the main board. Display
Unit software version => 1.4.1 is also required.
Address and S/W mode settings
The display and the push buttons (in the unit) are used to set the address, which also can
be changed via FT128. The S/W mode must be set to xxxx – 1587 (xxxx = type number).
Refer to the Technical Manual of 1728 and 1736.
The first unit is to have the address 00, the second unit address 01 and so on
. Follow
the Address setting instructions in the Technical Manual for each unit.
"Selective alarm presentation" can be programmed via EBLWin, i.e. you can select which
alarms to be presented in each unit, see the Technical Manual for the unit respectively.
6.2.1 Alert Annunciation Units
When the Alert Annunciation (AA) function is to be used in system FT128, a unit is required
for the related manoeuvres, i.e. to acknowledge / reset the AA alarms. For a detailed
description of the Alert Annunciation function, see Section "Alert Annunciation”, page 137.
1736 Alert Annunciation Unit (AAU). A compact size enclosure 145H x 220W x 50D
mm made of grey high impact ABS. Fitted with a supplementary "O" ring
gasket, it complies with IP61, in respect of dust and moisture. The unit has no
door, i.e. the front is accessed directly but the push buttons are disabled until
they are supposed to be used. The unit should be wall mounted. Two
compression glands are included.
All or selected fire alarms will be presented in a display (alphanumeric LCD,
2x40 characters), with back-light. An alarm text will also be presented together
with each alarm, if programmed in FT128. Furthermore, at least 617 texts can
be stored for selected fire alarms in the unit and will in such a case be shown,
instead of the texts sent out from FT128 for these alarms. These text messages
will be downloaded to the unit via FT128. A built-in buzzer will sound to indicate
a non-acknowledged AA alarm.
New software versions can be downloaded directly in the unit. The unit is power
supplied from FT128 or can be externalyl powered.
The unit has the following indications:
Fire and Alarms queued, indicating fire / AA alarm.
Operation, indicating that the unit is in operation, i.e. the AA function is enabled
in the system. A time channel can be used to enable the AA function.
Fire brigade alerted, indicating that the "Fire brigade TX" output is activated in
FT128 due to:
the activated fire alarm is not an AA alarm
the AA function has been terminated, e.g. the acknowledge or
investigation time respectively has run out, etc.
Acknowledge, indicating that the AA alarm has been acknowledged.
The unit has the following push buttons:
The RS485 transceiver 4552 is an option.
The connection order on the line is not dependent on the unit address.
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