8
UNIT WIRING
Input 1 (Selectable Via DIP Switches)
A. Standard Input
- (DIP switches S3 OFF, S4 OFF) This mode configures the unit to
be tripped from a DC voltage ranging from 9 V DC to 12 V DC or an open collector.
B. Timed Bell
- (DIP switches S3 ON, S4 OFF) This mode configures the unit to
be tripped from a DC voltage ranging from 9 V DC to 12 V DC. The unit reads
a pulsed voltage as a fire signal and a steady voltage as a burglary signal. It
may be necessary to place a 1K Ohm resistor in parallel to prevent false alarms
when using panels with supervisory voltage on the bell circuit. Some panels with
supervised bell circuits may require a 1K Ohm resistor in the circuit. Contact
Technical Support for further details.
C. Sampled Siren
*
- (DIP switches S3 ON, S4 ON) This mode configures the unit to
be tripped from a siren driver or a panel with a built in siren driver. The unit reads
a steady tone as a fire signal and a yelping tone as a burglary signal.
*NOTE:
The input assumes that a speaker is connected to the panel. If you are not
using a speaker we recommend using a Timed Bell instead of Sample Siren. This
is an option on most panels.
Input 4
(DIP switch S8 ON) A trigger of INPUT 4 from high-to-low and back-
to-high causes the 2500EZ to reset. The high-to-low-to-high must be held for
at-least 100 msec.
(UNIT WIRING continued next page)
FIGURE 3: DETAIL OF CONNECTIONS
IN1
IN2
IN3
IN4
OUT1
OUT2
12 V DC
Outputs
Inputs
®
2500EZ
