Voltage Outputs; Auxiliary 12 V D.c; Hold-Off; Programmable Outputs - ADEMCO Galaxy 16 Engineer's Manual

This output is subject to Bell Time, Bell Delay and re-arm in a full alarm condi-
tion.
Refer to
Section 5: MENU OPTIONS; Option 8 – Outputs
details and Option 2 – Chime
tion.

Voltage Outputs

Auxiliary 12 V d.c.

Two negative (0 V) and two positive 12 V d.c. supply terminals are provided for
detectors and other devices.

Hold-Off

This positive and negative 12 V d.c. output is used to hold off the Self Activat-
ing Bell (SAB) and to recharge the sounder battery when required. The output
is current limited to prevent shorting or over demand by the sounder battery.
Note: The Bell, Strobe and Hold-off outputs share a common fuse (F2).

Programmable Outputs

Outputs 1, 2 and 4 on the Galaxy 16 and 16 plus are negative applied (positive
removed), transistorised outputs. The outputs can sink up to 400 mA and are
used to drive output devices. The transistorised outputs are illustrated in
Figure 1.12 Transistorised Output Configuration and Typical Applications.
Output 3 is a Single Pole Change Over (SPCO) Relay. This can be used to drive
output devices that require a clean set of contacts, isolated from the output
voltage. The SPCO Relay output is illustrated in Figure1.13 SPCO Relay Output
Configuration and Typical Application.
Transistorised Output
+12 V
Cut 3k3Ω to give
open collector
Figure 1.12 Transistorised Output Configuration and Typical Applications.
Output Applications
for details on the operation of the Chime func-
3k3Ω
Output
0 V
for programming
Typical Applications
A) LED
Output
LED
1kΩ (typical)
B) Bell
Bell
Output
C) Output used to trigger zone
Output
1%
1kΩ
1%
Output must be
1kΩ
open collector
13
+12 V
+ 12 V
zone