Honeywell 3-144, Installation Manual

Page: 27 / 90

Galaxy 3 Series Installation Manual
2-17
Figure 2-17. Single Pole Change–Over Relay Output Configuration and Typical application
Figure 2-16. Output Configuration and Typical Applications
Output Applications
The outputs on the Galaxy panels, with the exception of the SPCO relay output, are transistorised outputs;
negative applied (positive removed) by default. These supply up to 400 mA and can be used to drive the
necessary output devices.
NOTE: The polarity of each output can be changed using option 53 = PROGRAM OUTPUTS
Note: For the appropriate 3k3
Ω
pull-up resistor refer to DIP switch SW3 (Table 2-1).
The relay output is a single pole change over; this can be used to drive output devices that require a clean set
of contacts, isolated from the output voltage.
Output Applications
+12 V
3k3
Ω
1k
Ω
(typical)
1k
Ω
1k
Ω
0 V
Cut 3k3
Ω
to give
open collector
Typical Applications
A) LED
Output
B) Bell
Output
C) Output used to trigger zone
Output
LED
+12 V
+ 12 V
1%
1%
Output must be
open collector
zone
Bell
Output
Transistorised Output
Single Pole
Change - 0ver
relay contacts
Normally
closed
Normally open
Horn
+12 V
0 V