090070671
- SCMAS5 -
TECHNICAL MANUAL
4
WARNING: don’t install any local alarm silencing switch if you need the system to be compliant with
the EN54 standards (the button is intended to deactivate the optical-acoustic devices controlled by
the output module, till the control unit forwards a new activation command).
Power
Supply Unit
Terminal board
24V
optical-acoustic
device
1N4001
AS protocol loop.
Connect the cable
shields togheter.
Dip switches
Rotary switches
Local
silencing
button
remote low
absorption
LEDs
Pins
5.6 K
Ω
End of line
resistance
Additional optical-
acoustic devices
in parallel
PSU fault output
Pic. 1 — Overview and wirings
4.2 Unplugging and plugging back the terminal board
In order to clip the wires without holding the whole box in your hand, the terminal
board can be detached.
To unplug the terminal board:
•
Insert the point of a small screwdriver between the green plasic block of
the terminal board and the white plastic of the bottom side of the box;
•
Gently lever over the whole lenght of the board to make it raise in the
arrow’s direction (pic. 2);
•
Pull the board out in the arrow’s direction.
To plug the terminal board back:
•
Align the holes on the terminal board’s back with the pins;
•
Slide back the board, pushing it as far as possible towards the box.
4.3 Serial address programming
Every module on the loop has a unique ID
between 1 and 254
.
•
Set the address by maneuvering the rotary switches labeled ×100 (hundreds), ×10 (tens), and ×1 (units) on
the front of the box.
Pic. 1 shows the example ID 172 = 1×100 + 7×10 + 2×1
Pic. 2
—
Detachable terminal board
