ENFORCER SA-025 Installation Manual

b. Action – If the TRG terminal is connected to (+) momentarily, the relay output
immediately activates for about one second. To reset the SA-025, the TRG must be
disconnected from (+) for at least two seconds. The timer has no effect.
c. Triggering by powering unit up – If DIP switch #5 is set to ON, the output works the
same, but instead of triggering via the TRG terminal, the SA-025 is triggered by being
powered up.

4. Latched Output, delayed (Fig. 5):

a. DIP switch settings:
1 – ON
2 – ON
3 – ON
b. Action – If the TRG terminal is connected to (+) for the time set by the timer, the
relay activates and remains activated. To reset the latched relay, connect the TRG
terminal momentarily to (+) again.
c. Triggering by powering unit up – If DIP switch #5 is set to ON, the delay period set
by the timer starts when the SA-025 is powered up. At the end of the delay period,
the relay latches on and remains on until the SA-025 is disconnected from power.

5. Pulsing or Flashing Output, instant or delay (Fig. 6):

a. DIP switch settings:
1 – Relay output mode, see below
2 – Instant/delay start, see below
3 – OFF
b. Action – If the TRG terminal is connected to (+) momentarily, the SA-025 waits for
the time set by the timer, and then starts pulsing/flashing. The pulse/flash output lasts
until the TRG terminal is disconnected from (+).
c. Triggering by powering unit up – If DIP switch #5 is set to ON, the output works the
same, but instead of triggering via the TRG terminal, the SA-025 is triggered by being
powering up.
d. Instant/delay start – If DIP switch #2 is set to ON, the SA-025 waits for the time set
by the timer after triggered or powered up, and then starts pulsing/flashing. If DIP
switch #2 is set to OFF, the SA-025 starts pulsing/flashing as soon as it is triggered
or powered up.
e. Relay output time – If DIP switch #1 is set to ON, the relay on and off time depends
on how the timer is set. If DIP switch #1 is set to OFF, the relay on time is fixed at
about 1 second, and the relay off time depends on how the timer is set.

6. Optional Negative Trigger or Closed-Circuit Trigger (Fig. 7):

If a closed-circuit or negative trigger is required, it is necessary to install a 1K
(1,000-ohm) resistor as shown (included).
SECO-LARM SECO-LARM SECO-LARM SECO-LARM SECO-LARM U.S.A., Inc. U.S.A., Inc. U.S.A., Inc. U.S.A., Inc. U.S.A., Inc.
®
16842 Millikan Ave., Irvine, CA 92606
SECO-LARM's policy is one of continual development and improvement. For this
reason, SECO-LARM reserves the right to change specifications without notice.
Copyright © 2003 SECO-LARM U.S.A., Inc. All rights reserved.
®
4 – Timer setting (ON or OFF)
5 – OFF
6 – OFF
4 – Timer setting (ON or OFF)
5 – OFF
6 – OFF
file: MIA025_Newf.pmd Feb 2003
Installation Manual
ENFORCER
SA-025
Programmable Timer Module
The SA-025 Programmable Timer Module is suitable for a wide range of timed security
and access control operations, such as door unlock timing, siren or bell timer, VCR timer,
and so on. Auto-sensing of input voltage and DIP switches for programming make
installation easy.

Features / Specifications:

• Timer can be set from 1 second to 60 minutes
• Can be triggered by applying or removing a positive or negative signal (+/-) or by
powering up the unit
• Relay can be programmed to activate at the start or at the end of the timing cycle
• Relay can also be set to activate for one second at the end of the timing cycle
• Relay can be programmed to pulse (flash) or be steady on
• Built-in reset function to manually reset timing cycle
• Form-C relay, contacts rated 8A @ 120VAC/24VDC
• LED indicates relay is energized
• 12VDC/24VDC operation (auto sensing)
• Current draw – Less than 1mA (standby) or 50mA (relay energized)
• Board measures 2-7/8" x 2-1/2" (73 x 63 mm)
• Functions programmed via DIP switches – no jumpers to cut

Wiring:

• TRG – Positive (+) trigger signal input
• TRG – Negative (-) trigger signal input
(1K ohm resistor required - included)
• (-) – Ground input
• (+) – +12VDC to +24VDC input
• NO – Relay output (normally open)
• COM – Relay output (common)
• NC – Relay output (normally closed)

DIP Switch Settings (Programming):

The SA-025 is programmed via a series
of six DIP switches which can be turned
on or off. See fig. 1.
®
Fig. 1 – DIP switch settings
Switch Off On
#1
Fixed 1 sec. Relay Variable Relay output
output time time
#2
Output at END of Output at START of
COUNTER COUNTER
#3
REPEAT timing cycle SINGLE timing cycle
#4
Time in MINUTES Timing in SECONDS
#5
Timing controlled by Timing controlled by
TRG input Power Up
#6
Counter begin at START Counter begin at END
of TRG of TRG