Installation manual

Page 6 Installation manual for the CD3403
B
EFORE SWITCHING ON THE POWER
Detectors (or key switches) can be connected in two ways:
Conventional:
One zone each is required for both tamper and the alarm. Both zones should be
closed with an end-loop resistor (4.7 kOhm). Program the ‘zones’ menu as ‘Alarm’
Figure 1.
Separate alarm and tamper connection
Dual loop:
The alarm and tamper are placed together in one zone. The zone has two end-loop
resistors (4.7 kOhm) to differentiate between alarm and tamper. Figure 2 shows
how they are connected. Program the ‘zones’ menu as ‘Dual’.
Figure 2
. Joint connection of the alarm & tamper
This connection method gives the following input values:
The zone is Resistance Panel zone
voltages
Remote zone
voltages
Reaction
on standby 3k5 - 6k2 2.1 - 2.8 V 4.7 - 6.8 V none
triggered 6k6 - 11k7 2.9 - 3.6 V 6.9 - 8.6 V alarm
open > 12k7 > 3.7 V > 8.7 V tamper
short-circuited < 2k9 < 1.9 V < 4.6 V tamper
Table 1.
Operation of the inputs
1.
Set the DIP switches of all the remote keypads and expanders.
2.
Close the tamper switches on the remote keypads, expanders and the control panel. Also close all
zones which can cause a direct alarm. If this is not done, the system will be triggered as soon as it is
switched on.
3. Remove link JP1 from the PCB so that it returns to default settings.