2
Building Technologies
A6V10214492_a_en_--
Fire safety and security products
03.2010
Application
Input
With the input a status can be monitored, the input can be configured by controller or
configuration tools as follows:
l
“
Status
“
input or
“
Alarm
“
input
l
Lead monitoring for open line or open line and short circuit
l
When inputting status, according to different status of contact, can be set as fallows:
–
Normal mode: normally open NO input
–
Inverted mode: normally closed NO input
Fig. 1 connection diagram of dry contact input
Status
”
inputs and alarm
”
inputs
“
Alarm
“
inputs trigger an alarm as soon as the input is activated.
“
Status
“
inputs trigger a
monitoring status change as soon as they are activated.
Line monitoring and circuitry
The input lines are monitored for open line or open line and short circuit. To make these
possible, resistors must be properly connected to the end of lines of the input (Fig. 1). When
an open line or a short circuit occurs on one of the input lines, a fault message is transmitted
to the control panel. The input must be potential-free.
Output
External power output (Default)
Normal operation (output lines monitored)
-
Be used for controlling (e.g. operating a horn/strobe).
-
The module switches the externally supplied 24 VDC voltage in active status on the
output.
-
In inactive status the output line is monitored for open line and short circuit (Fig. 3).
-
The jumper on the input/output module must be plugged onto J2/J4 (Fig. 2)
Fig.2 Input/output module jumper position J2, J4
Fig.3 Connection for normal operation with output line monitored for short circuit and open line
1N5404
