This system contains a STI-6400 with a DPDT key switch
to be mounted on one side of a door or wall; and a
similar looking housing, also with a DPDT key switch,
but without an alarm for the opposite side of the door.
An authorized person with a key can disable the alarm
on either side of the door. When disabled, and LED will
illuminate, and the door can be opened without setting
off the alarm. After passing through the door, the
alarm can be armed again from the opposite side.
Installation:
1. Follow STI-6400 mounting instructions and set
switches to the desired positions for alarm timing
and volume.
2. For straight through door or wall installation, mark
the center of the 5/16 inch hole in the mounted
base, then remove the base from the door or wall.
3. Drill a 5/16 inch diameter hole through the door or
wall at the marked location.
4. Align the same diameter hole in the secondary unit
base to the back side of the door or wall and
mount.
5. Route the wire from the STI-6400 unit through the
hole and into the secondary unit.
6. Attach the 6 wires to the terminal block pins 2 thru
7 matching wire colors on the terminal block label.
7. Seal the hole around the wires with an effective
fire stop material, if required.
8. Attach the battery in the secondary unit and install
the cover.
9. Cycle the key switch to be sure the LED’s turn “ON”
and “OFF”. Leave the LED’s “ON” until ready to test
the alarm.
10. Attach the battery to the STI-6400 and install the
cover.
11. Close the door and test.
Operation:
1. With the door closed, turn either key switch to arm
the alarm. The LED’s on both sides of the door
should turn “OFF”.
2. If the door is opened while the LED’s are “OFF”,
then the alarm will sound according to the switch
settings of the STI-6400.
3. To reset the alarm, turn either key to the opposite
position (the LED’s will turn “ON”), close the door
and turn either key switch again (the LED’s will turn
“OFF”).
4. When the system is armed, authorized passage can
be accomplished by turning either key switch until
the LED’s turn “ON”, and remove key. The door can
now be opened without sounding the alarm. When
passage is complete, close the door, turn the key
switch (the LED’s will turn “OFF”). The door alarm
is once again armed.
Schematic Diagram:
13 February 2017
Page 2
Exit Stopper
STI-6400 Series
Features
· Alarm helps prevent unauthorized exits/entries through doors.
· Easy to install.
· Select volume, duration and immediate or 15 second delay for arming and trip.
· May be mounted on top, right, left or next to almost any door.
· User can select on-site whether to use an alarm or annunciator.
· Less expensive than heavy horizontal bar type units and practical for all
emergency doors.
· Contact STI for custom applications.
®
We Protect the Things that Protect You.
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Page 3
Table of Contents
· Warnings and Cautions ........................................................................................... Page 2
· Warranty Information ............................................................................................... Page 2
· STI-6404 Double Door with Remote Horn additional install notes .......................... Page 7
· STI-6405 Exit Stopper with Momentary Reset ....................................................... Page 7
Warnings
All units are recommended for indoor use, not for outdoor use. Unit must be tested periodically
to verify the life of battery. STI recommends you change the 9 Volt battery twice a year.
Installer may need to purchase a simple audio-meter, typically available at your local electronics
store, to measure the sound in areas where the alarm is expected to be heard during normal
noise environment. Results from this test may prove it beneficial to purchase additional exit
stopper units. When purchasing a remote unit (STI-6403) you will need to periodically test the
connections to make sure audibles function at a sound level to alert staff. Maximum of three
STI-6403 may be used in parallel.
All specifications and information shown are current as of publication and subject to change
without notice.
Warranty Information
· Three year guarantee against breakage of polycarbonate in normal use (one year on electro
mechanical and electronic components).
· Electronic warranty form at www.sti-usa.com/wc14
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Page 4
Specifications
Polycarbonate Enclosure:
Dimensions 5.375” W x 5.375” H x 2 “ D (137mm x 137mm x 51mm)
Flammability UL94 V-2
Wall Thickness 0.12 in (3.05mm)
Electronics: STI-6400 - All Units
9 VDC Alkaline or 9V-24VDC wired
Power Source
Class II UL Listed transformer
Horn Volume at 1 ft. 95 dB low / 105 dB high
Relay Output Form C Dry Contacts 0-30 VDC or VAC, 1 Amp
Stand by Current 10uA
Alarm Current 130mA at 95 dB / 200mA at 105 dB
Operating Temperature
Range
32° to 113°F (0° to 45°C)
Electronics: STI-6403 and STI-6404 - Remote Horn Unit
Power Source 9 VDC operating power* only
Horn Volume at 1 ft. 95 dB low / 105 dB high
Stand by Current 0 A
Alarm Current 50mA at 95 dB/ 200 mA at 105 dB
* Power source for the STI-6403 Remote Horn uses a separate power source from the
STI-6400 alarm. The Remote Horn contains an internal 9 volt battery. Horn operates
when the Form C contact at main unit is activated on alarm.
- 3 -
Page 5
Circuit Board Set-up
ALARM VOLUME SWITCH
TRIP DELAY SWITCH
JP4
ALARM
DURATION
SWITCH
(FACTORY DEFAULT SETTINGS)
(OFF)
(OFF)
JP3
(ON)
(OFF)
JP5
JP2
TERMINAL BLOCK
JP7
ARMING SWITCH
REMOTE
POWER
INPUT
FORM C
DRY
CONTACTS
9-24 VDC
(ON)
REED
SWITCH
TERMINALS
KEY SWITCH
TERMINALS
COM
NC
NO
GD
RS1
V+
RS2
KEYSW
TERMINAL BLOCK WIRING CONNECTIONS
Switch Settings
FEATUREJP2JP3JP4JP5JP7
Volume - High (105 dB) at 1 ft. ON*
Volume - Low (95 dB) at 1 ft. OFF
Duration - 30 Second Alarm OFF* OFF*
Duration - 180 Second Alarm OFF ON
Duration - Continuous Alarm ON OFF
Duration - Annunciator Mode ON ON
Trip - Immediate OFF*
Trip - 15 Second Delay ON
Arming - Immediate ON*
Arming - 15 Second Delay OFF
*Factory Settings
Note: Slide black lever to desired ON/OFF position as labeled on circuit board.
- 4 -
Figure 1
Page 6
Alarm Feature Description
NC
COM
NO
GD
V+
RS1
RS2KEYSW
· Volume Switch JP2 - Sets alarm volume to high 105 dB or low 95 dB.
· Duration Switch JP3 and JP4 - Amount of time alarm sounds after trip. Arming resets at
end of duration if door is closed. Alarm will not reset if in continuous mode; alarm sounds
until battery is drained. Annunciator Mode is a series of 10 short beeps or until door is
closed.
· Trip Delay Switch JP5 - If you wish to ENTER an alarmed door without sounding the horn
immediately, the trip delay will allow 15 seconds for you to enter and de-activate the alarm
with the key switch before the alarm will sound.
· Arming Switch JP7 - This mode is useful when an AUTHORIZED EXIT is required through
alarmed door. In “ON” position immediate arming will set the alarm ready to function as
soon as door is opened. In “OFF” position delay arming will allow 15 seconds for you to exit
through the door without sending alarm signal.
Installation Instructions
Note: STI recommends setting up unit and testing settings prior to mounting.
1. Make sure key switch is in the OFF
position.
2. Remove tamper screw on side of unit
and remove housing cover. Save this
tool for future servicing and battery
change (Fig. 2).
ALARM SOUNDS WHEN DOOR IS OPENED
EMERGENCY USE ONLY
ON
FLANGES
OFF
3. Set switches, on circuit board, to
desired alarm settings (Fig. 1).
4. Test settings by connecting battery
or external power source. If using
COVER
REED SWITCH
MOUNTING LOCATIONS
(LABELED 1-4)
external power source a Class II UL
Listed transformer is required. If power
is present at terminal block (Fig. 1) 9V battery
is in no-load on standby power consumption.
5. Mount main unit on or next to door using hardware provided. Reed switch mounting
locations can be moved to one of the four positions shown in Fig. 2. If mounted next to
door, route reed switch wire through knockout in bottom of housing as shown in Fig. 3.
6. Mount magnet on door frame (or door
if unit is mounted next to door) using
screws provided. When mounting on
VIEW SHOWING MAGNET INSTALLATION
metal doors or door frames, use plastic
spacers provided. Reed switch and
magnet must be within 3/4” when door
is closed (3/8” on metal door and frame).
Please refer to figures 4, 5 and 6 on page
6 for other mounting options.
7. If installing STI-6402, STI-6403, or
STI-6404 continue to page 7 for more
instructions (Fig. 7 and 8). STI-6402
mounting option is shown on page 6.
8. Replace cover by sliding flanges on
inside of cover into slots on base. Then
rotate the cover over unit and snap close.
Replace tamper screw.
19039 SCREW
6 x 1 1/4 in.
(2) PROVIDED
MAGNET
- 5 -
19014 MOUNTING SCREW
(4) PROVIDED
SLOTS
1
RS2KEYSW
RS1
V+
GD
NO
COM
NC
4
3
BASE
REMOVE FRONT COVER
AND ROUTE REED SWITCH
WIRES THROUGH NOTCH ON
BOTTOM SURFACE AS SHOWN
TERMINAL STRIP
9 VOLT BATTERY
2
19011 TAMPERPROOF SCREW
(1) PROVIDED
19016 TAMPER WRENCH
(1) PROVIDED
Figure 2
MAXIMUM GAP 3/4 in. (19mm)
3/8 in. (9.5mm) ON METAL DOOR
AND FRAME
SPACERS (USE AS NECESSARY)
NOTE: 2 SPACERS UNDER BOTH
MAGNET AND REED SWITCH
MUST BE USED ON STEEL DOORS
19018 ANCHOR
(2) PROVIDED
Figure 3
Page 7
Mounting Options
19039 SCREW
6x 1 1/4 in.
(2) PROVIDED
19018ANCHOR(2) PROVIDED
BOTTOM SURFACE AS SHOWN
WIRES THROUGH NOTCHON
AND ROUTE REEDSWITCH
REMOVE FRONT COVER
VIEW SHOWING MAGNET INSTALLATION
MAGNET
MAXIMUM GAP 3/4 in. (19mm) 3/8 in. (9.5mm) ON METAL DOORAND FRAME
SPACERS (USE AS NECESSARY)NOTE: 2 SPACERS UNDER BOTHMAGNET AND REED SWITCHMUST BE USED ON STEEL DOORS
19039 SCREW
6x 1 1/4 in.
(2) PROVIDED
19018ANCHOR(2) PROVIDED
BOTTOM SURFACE AS SHOWN
WIRES THROUGH NOTCHON
AND ROUTE REEDSWITCH
MAGNET
MAXIMUM GAP 3/4 in. (19mm) 3/8 in. (9.5mm) ON METAL DOORAND FRAME
SPACERS (USE AS NECESSARY)NOTE: 2 SPACERS UNDER BOTHMAGNET AND REED SWITCHMUST BE USED ON STEEL DOORS
MAGNET MUST BEINSTALLED OPPOSITERAISED RIB ON OUTER COVER
19039 SCREW6 x 1 1/4 in.(2) PROVIDED
SPACERS - USEAS NECESSARY
NOTE: (2) SPACERS MUST BEUSED ON STEEL DOORS
19018 ANCHOR(2) PROVIDED
MAGNET
6400 UNIT
DOORSWING
JAM
DOOR STOP
DOOR
TYPICAL FLUSH MOUNT DOOR JAM
INSTALLATION
19039 SCREW
6 x 1 1/4 in.
(2) PROVIDED
TYPICAL FLUSH MOUNT DOOR JAM
INSTALLATION
MAGNET MUST BE
INSTALLED OPPOSITE
RAISED RIB ON OUTER COVER
SPACERS - USE
AS NECESSARY
19018 ANCHOR
(2) PROVIDED
NOTE: (2) SPACERS MUST BE
USED ON STEEL DOORS
MAGNET
6400 UNIT
DOOR
SWING
JAM
DOOR STOP
MAGNET ASSEMBLY
(SEE ABOVE FOR INSTALLATION)
TYPICAL RECESSED MOUNT DOOR JAM
INSTALLATION
DOOR STOP
MAGNET
DOOR
3/4 in. (19mm)
MAXIMUM GAP
3/8 in. (9.5mm) ON
METAL DOOR AND FRAME
6400 SWING
DOOR
SWING
*Note: When mounting reed switch on door and the main unit on wall, wire service loop must be used.
TYPICAL DOUBLE DOOR INSTALLATION
STI-6402
Figure 4
Figure 5
- 6 -
Figure 6
Page 8
STI-6402 Double Door Install Notes
NOTE: WIRING NOT PROVIDED
NOTE:14-24 AWG MAYBE USED.
EXISTING
EXISTING
TO STI 6400 CIRCUITBOARD TERMINAL STRIP.
B
3/4 in. (19mm)MAXIMUM GAP3/8 in. (9.5mm) ONMETAL DOOR AND FRAME
MAGNET ASSEMBLY(SEE ABOVE FOR INSTALLATION)
DOORSWING
6400 SWING
MAGNET
DOOR STOP
DOOR
TYPICAL RECESSED MOUNT DOOR JAM
INSTALLATION
1. Determine length needed for reed switch
wires. STI provides 1 reed switch with 6 ft.
wires. Cut to desired length.
2. Connect first reed switch in RS1 and
second in RS2 (Fig. 7). (Refer to Fig. 1 for
additional details on page 4.)
3. If not using extra reed switch, add jumper
across two terminals of RS2 on terminal
block.
*Note: Alarm will sound when either door is
opened.
STI-6403 Remote Horn Install Notes
1. Remove cover.
2. Connect two conductor wire (14-24 AWG)
from main unit terminal block pins COM
and NO to remote horn unit terminal block.
(wire not provided). Units can be set up to
300 ft. apart. Not polarity sensitive (refer to
Fig. 1 and Fig. 7 for details).
3. Connect internal battery.
4. Mount similar to main unit with #8 x 1 in.
screws and anchors if necessary.
5. Replace cover and screws.
6. Turn key switch to ON position.
TERMINAL BLOCK
OPTIONAL:
TO REMOTE
HORN
STI-6403
ROUTE WIRES
THROUGH NOTCH
INTERNAL REED SWITCH
VIEW SHOWING INSTALLATION OF
ADDTIONAL REED SWITCH 06402
(RS1)
TO KEY
SWITCH
06402 REED SWITCH
(RS2)
KEY SWITCH
Figure 7
*Note: The ON/OFF key position is opposite
from 6400 main unit. Remote horn sounds
when main unit alarm is activated.
STI-6403 REMOTE HORN UNIT INSTALLATION
Figure 8
STI-6404 Double Door with Remote Horn Install Notes
The STI-6404 is a combination unit for double doors with a remote horn. Reference the installation
instructions for the main unit, the STI-6402 and the STI-6403 for complete installation.
STI-6405 Exit Stopper with Momentary Reset
The STI-6405 uses a momentary switch. After initial
installation, unit is always on and you do not have to
remember to turn it on when you leave a protected area.
This model also eliminates having to remember to re-arm it
because it is never off.
RESET
When the alarm is triggered, to silence the alarm, insert the
key and turn completely to the “RESET” position and hold
for 2 seconds, then release. The switch will spring back to
its original position and push the key out. To turn the unit
off, supply power must be removed.
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Page 9
2306 Airport Rd • Waterford, MI 48327
Phone: 248-673-9898 • Fax: 248-673-1246
info@sti-usa.com • www.sti-usa.com
Safety Technology International (Europe) Ltd.
Unit 49G Pipers Road • Park Farm Industrial Estate • Redditch