28
Installation instructions
Installation and programming manual
6.3.1
Wiring
1. Use 2 pole shield twisted cable. The cable section must be compatible with the loop load (refer to
Appendix A
,
Appendix B
and
Appendix C
for further details).
Attention:
The maximum wire length is 2000 m.
2. Connect the cable shield to the earth terminal [3] (one end of the loop only).
3. Fire alarm wires must be separate from other power wiring circuits.
6.3.2
Loop limitations
Use suitably sectioned shielded twisted cable for the loop wiring. Connect the shield to earth using terminal
3 or 6, connect it to one end of the loop only.
In order to allow the loop to function properly, you must section the device connection cable in such way
that any voltage drop along does not exceed 8 V. The following table shows the minimum dimensions for
the loop wiring with regard the distance between the Loop-O terminals and the most distant device:
6.3.3
Fire code guidelines
Danger:
- 2 wire connection, no more than 32 detectors can be connected to the loop.
- 4 wire connection, T junctions are prohibited, that is unless the maximum number of devices
that risk isolation during any type loop fault does not exceed 32.
- If the system loop devices do not have built-in isolators, you must install an isolator for each
group of 32 detectors.
- All circuits should be wired using the local country Fire Code compliant method.
6.4
Connecting the dialer
The panel dialer must have an activation terminal that will generate calls when it connects to
GND
(activation -A).
Figure 13 - Connecting the dialer
6.4.1
Wiring
1. Connect the telephone dialer to the
DIALER
terminals.
2. Connect a 10 k
:
resistor to the dialer, as shown in the previous figure. This resistor will monitor the
integrity of the connection between the panel and the dialer and will signal any short-circuits or
interruptions.
In the event of an alarm, the panel will trigger the dialer which, after the programmed delay, will send the
respective calls to pre-set telephone numbers.
up to 500 m
minimum 1 mm
2
up to 1000 m
minimum 1.5 mm
2
up to 1500 m
minimum 2 mm
2
up to 2000 m
minimum 2.5 mm
2
DIALER
POWER-SUPPLY