APPENDIX 2
Input Connections (continued)
Input Learning
To aid installation, DualCom can learn the quiescent state of its inputs, i.e. the
‘non-active’ state. ‘Non-active’ means that the voltage on the alarm inputs are in
the ‘not in alarm’ condition and open/close inputs are in the ‘open/unset/day’
condition. This includes the ‘T’ input. See EN50131, PD6662 section.
Input Learning allows the unit to be programmed during installation with ‘posi-
tive applied’ or ‘positive removed’ inputs. Input Learning will correct NVMs that
have been supplied with incorrect input polarities.
1. Setup the inputs ‘non-active’ conditions by connecting a positive voltage or
‘no’ voltage (0v) on each input terminal as required.
This is easily achieved by connecting the Control Panel outputs to the
DualCom inputs, then put the Control Panel in the ‘day state’ with no acti-
vated detectors and all alarm conditions reset. Ensure that the Test
output is also in the quiescent state. Leave any unused DualCom inputs
disconnected.
Ensure that the ‘open/unset/day’ state is selected on the Control Panel.
Do not leave the Control Panel in the ‘set’ or ‘engineering’ states.
2. When the DualCom has completed its Power-up - Reset mode, the display
will show the FSSI value (00-99).
3. Press the A button repeatedly until ‘P’ is displayed, then:
press the B button 3 times.
The display will show ‘P0’, ‘P1’, ‘P2’ etc..
This is the Programming state.
4. Press the A button repeatedly until ‘Pi’ is displayed, then:
press the B button 3 times.
The display will show ‘Pi’ with the ‘i’ moving left-right.
This is the Inputs learning state.
5. Press the B button 3 times.
The display will show ‘Pi’ with the ‘i’ not moving
Input Learning has now been completed and the NVM has been updated.
6. Press the A button once to return to the Programming state.
This procedure is also shown in Appendix 1, Table 30 and 31.
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