Alarm Lock Door Alarms PG21 Series Installation Instructions

							1 
PG21 Series 
Pilfergard Door Alarms 
 
INSTALLATION INSTRUCTIONS 
WI738F  1/06 
345 Bayview Avenue 
Amityville, New York 11701 
For Sales and Repairs, (800) 645-9445 
For Technical Service, (800) 645-9440 
© ALARM LOCK 2006 
AL ARM LOCK 
DESCRIPTION 
The PG21 is a microprocessor-controlled door alarm for sur-
face mounting on a door or door frame.  Typical applications 
include emergency fire escape doors, nursing home stairwell 
doors, rear restaurant and theater doors.  The PG21 is de-
signed to continually monitor the status of a door.  When 
opened, the protected door triggers an alarm sounder, an op-
tional strobe or can activate another device via a Form-C re-
lay.  It has various programmable features including:   
 
•Four Siren Sounds 
•Four Alarm Modes for a variety of applications (see page 5). 
•Programmable Time Delays 
•Battery Operated (Battery life approximately 2 ½ years) 
•External Power Supply Capability 
•Built-in Door Bell (Requires button installation) 
•Cover Tamper Protection (Unauthorized removal trips alarm) 
•Key Lock Tamper (Cover cannot be removed without key) 
•Accepts standard mortise cylinders 
•Multiple Door Monitoring (External Reed Switch Contacts) 
•Form-C Relay (Connect to fire/burglary panel or other device) 
•Annunciator Feature (Beeps when door opens) 
•Two Operating Modes:  Always Armed and On/Off 
•Strobe Feature (PG21MSS models only) 
•Status Indicator 
 
The PG21 unit is usually mounted on the interior of the door 
frame or door and is paired with a magnet (Magnetic Actuator) 
mounted on the opposing side of the door gap.  Opening the 
door, when armed, will activate the alarm.  The PG21 is 
shipped from the factory in Always Armed mode (if key is re-
moved, unit automatically re-arms) and can be converted to a 
manual On/Off mode (allowing the operator to manually arm 
or disarm with the key).  The Status indicator (located on the 
front of the Housing Cover) signifies whether the unit is armed 
or disarmed (red indicates armed status).  A selectable annun-
ciator feature beeps to signal the opening of the door while the 
unit is disarmed.   
 
SPECIFICATIONS 
Dimensions: 11 x 2½ x 2 3/8 (22.8cm x 6.3cm x 6.8cm)  
(LxWxD)  (Length 11 with Strobe, 9 without Strobe). 
Finish: Metallic Silver (PG21MS); Metallic Bronze 
(PG21MB); Red (PG21RD); Metallic Silver with 
Strobe (PG21MSS) 
Power Requirements: 9-Volt Alkaline Battery (supplied).  
The PG21 may also be used with Model PP100 
(optional) or other power supply providing 9-12Vdc at 
300mA.  Internal battery may be used simultaneously with external power supply. 
Sounding Device: Piezo electronic sounder sweep siren, 
steady or pulsing, 110dB at 10 feet 
Shipping Weight: 1 lb, 10 oz. 
Relay Contacts:  (Form-C) rated at 24VAC/DC at 1A (non-
inductive). 
 
A.   INSTALLATION:  PRELIMINARY STEPS 
Installation is divided into 5 main steps:  (A) Preliminary, (B) 
Wiring, (C) Configuration, (D) Mounting and (E) Testing.   
 
1.  Choose a suitable location.  Most often, the PG21 is 
mounted on a door, and the Magnetic Actuator is mounted 
to (or inside) the door jamb.  However, if the PG21 will 
have a doorbell or any external wiring, give careful consid-
eration to the mounting location and make allowances for 
all necessary wiring.  For example, if you wish to monitor 
multiple doors, choose a generally central location as 
wires (and reed switch contacts) will need to run to all 
doors in series.  If you mount the PG21 on a door, the 
Baseplate must be mounted far enough away from the 
edge of the door to prevent unit from striking the door jam 
when opening the door.   
2.  Examine the enclosed template.  The two-sided tem-
plate provides mounting hole locations (drawn in solid cir-
cular lines) for several door types.  Use the four corner 
holes for the Baseplate as shown on the template.  Note:  
Certain narrow-stile doors require only two holes for the 
Baseplate.   
3.  Mark and drill holes (use 1/8 bit, 1 deep) on the door 
and jamb as per the template directions.  Hole locations 
are drawn in solid circular lines. 
4.  External Wiring.  Mark and drill the hole (shown on the 
template) for external wiring such as doorbell, reed switch 
or relay wiring. 
5.  Knock out the necessary holes from the Baseplate and 
install on the door with the supplied #8 sheet-metal 
screws.   
6.  Temporarily mount the Housing Cover into the Base-
plate to aid in positioning the Magnetic Actuator location.   
     Mount as follows:  Remove all keys from cylinder (thus 
ensuring the cylinder is in a 12:00 position).  Hold the 
Housing Cover vertically with the inside facing toward you 
(the PC board and jumpers can been seen at bottom), 
slide the switch to the right.  (Note:  Each time the Hous-
ing Cover is removed, the switch MUST be moved to the 
right before mounting).  Hook the Housing Cover into the 
clip at the bottom of the Baseplate, then gently snap the 
top of the Housing cover into the top of the Baseplate.  DO 
NOT FORCE.  Note:  If the switch is in the wrong position 
(not moved to the right), or if a key is accidentally left in-
side the cylinder, the Housing Cover is specifically de-
signed NOT to lock into the Baseplate.   
 Publicly traded on NASDAQ    Symbol: NSSC  
						

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7.  Position the Magnetic Actuator as indicated by the red 
sticker on the side of the Housing Cover.  If stickers were 
removed, use the Magnet Alignment Mode (see page 3) or 
place the Magnetic Actuator 1½  from the bottom edge of 
the Baseplate.  Mark holes and (as with the Baseplate) 
use a 1/8 (0.125) bit, and drill the hole 1 deep. 
8.  Install the Magnetic Actuator with the supplied #8 sheet-
metal screws (1).  Be sure to insert the Magnet (P1358) 
and Magnet Cover (P0291) into the Magnet Housing 
(P0290) before mounting.   
 
B.   WIRING 
         External wiring to the PG21 requires that the unit be mounted 
on the frame with the magnet on the adjacent door.  (The 
PG21 may be mounted on a door with the addition of a Model 
271 Flexible Cable).  All wiring is made at its terminal strip.  
Wiring connections are summarized in the Wiring Diagram 
shown below in Figure 1. 
 
 
Relay (Terminals 1-3).  Terminal 1 = Normally Closed; 
Terminal 2 = Common; Terminal 3 = Normally Open.  
On alarm, the relay will activate and remain latched for 
as long as the sounder is on.   
Reed Switch (Terminals 4 & 5).  Connect external reed-
switch contacts to Terminals 4 and 5 and remove reed 
selection jumper W1 located in the center of the PCB.  
Note:  If reed switches are wired in series as shown be-
low in Figure 2, several doors may be monitored 
simultaneously.  Using #22AWG wire, maximum wiring 
distance should not exceed 50 feet.  Note:  When exter-
nal reed switches are used, the internal reed switches 
must be disabled by removing the reed selection (W1) 
jumper. 
Power (Terminals 6 & 7).  Connect an external power 
supply:  positive (+) red to Terminal 7; negative (-) black 
to Terminal 6.  Leave in the internal battery as a backup 
battery.  If using the Alarm Lock PP100 Power Supply, 
connect the two battery clips to the unit and the internal 
battery as labeled. Doorbell (Terminal 8).  Connect between terminal 8 and 6 
using momentary-on switch to activate Doorbell.  Pro-
duces alternating tone.  Will not operate during Alarm or 
during Arm delays.  Note:  Do not use a lighted door 
bell button--the light will drain the battery. 
Strobe Connector (Jumper 14).  If using a Strobe unit, run 
the wires through Strobe Assembly and Palnut and plug 
female polarized connector into J14 located in the cen-
ter of the PC board (see Fig 5b, page 4).  Note:  J14 
(Pin1) is the external Strobe Power (9 volts) and J14 
(Pin2) is the Strobe Ground.   
        The Strobe and siren are on the same circuit, therefore 
the timeout duration is the same for both.    
C.   CONFIGURATION 
       There are two configuration sections:  Mechanical Con-
figuration and Jumper (Software) Configuration.   
 
Mechanical Configuration 
        You must decide if the PG21 lock will be kept in its original 
factory configuration (in Alw ays Armed mode) or con-
verted to a manual On/Off mode.   
        The PG21 is shipped from the factory with a Torsion Spring 
(HW1149) installed (see Figure 7, page 7) which forces the 
Cam Assembly (HW1187) against the PC Board switch, thus 
keeping the lock Armed whenever the key is removed.  If 
you wish to convert the lock to On/Off mode, allowing the 
Cam Assembly to be moved in either position, the Torsion 
Spring must be disabled--disconnected from the Cam As-
sembly.  To disable the Torsion Spring, use a small screw-
driver and unhook the end of the Torsion Spring from the 
Cam Assembly, as illustrated in the following images:  Note:  
To allow for future re-conversion, the Torsion Spring can be 
simply disconnected and not removed (see Fig. 3c below).   
         See the following three images (Figs. 3a-3c) to help you con-
vert your PG21 from  Always Armed to On/Off mode, or to 
restore your PG21 back to its original factory condition 
(Always Armed). 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Jumper Configuration 
Before configuring the jumpers, also see page 5 and decide 
which options should be selected for your application. 
1.    Connect the battery; a chirp will sound ensuring that 
power is properly connected.  Important:  Press the small 
CLEAR button at the lower-left corner of the circuit board 
(see Figure 4 below).   
 
 
 
 
 
 
 
 
NOTE:  REMOVE W1 JUMPER INSIDE HOUSING  
(ONLY IF EXTERNAL REED SWITCHES ARE USED). 
4 
5 
DOOR 1 DOOR 2 DOOR n 
MAXIMUM WIRING DISTANCE = 50 FEET 
USING #22AWG WIRE 
Fig. 2.  Multiple door monitoring (wired in series). 
 
1 2 3 4 5 6 7 8 
REED 
SW ITCH* 
*ALSO SEE FIG 2 
EXT. 
POWER 
12VDC RELAY 
NC NO C 
Fig 1.  Wiring Diagram. 
+ _ 
DOORBELL  
Figs. 3a-3c:  Disconnect Torsion Spring from Cam Assembly:   
Fig 3a displays the Torsion Spring as it is installed from the factory (thus 
Always Armed mode).  To convert to On/Off mode, first lift leg of the 
Torsion Spring (Fig. 3b) from Backplate, then unhook other end of spring 
from Cam, releasing tension (Fig. 3c), and allowing Cam to move freely.   
         Fig 3a                                 Fig. 3b                              Fig. 3c 
Cam 
Assembly 
Torsion 
Spring Lift leg of 
spring... 
...then 
unhook 
this end  
						

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2.     Reed selection jumper W1 is located in the center of the 
PCB.  The jumper should be set to the side of the unit that 
will have the magnet installed.  (See Figure 5 below). 
3.    Select jumper options (J1- J9) as follows.  (Refer to the 
Jumper Options table, below and page 5).   
Important:  The jumpers are only read at startup and when-
ever the unit is armed.  If the jumpers are changed after power 
up, the unit must be rearmed before the jumper changes take 
effect.  In addition, the unit will not function unless Tamper 
Screw (SC543) is in place. 
 
J1:   Siren.  Factory default sound is a Sweeping Siren.  
Jumper moved to the lower position (near the edge of 
the circuit board) produces a Steady-Tone Siren. 
J2:   Pulsing  Siren.  Default setting is Constant-ON.  
Jumper moved to the lower position produces a siren 
that pulses on and off.   
J3:   Siren  2-Minute  Timeout.  Default setting (jumper at 
upper position) enables the timeout, allowing the si-
ren to turn off two minutes after the alarm is tripped--if door is closed within that two minute period.  Jumper 
moved to the lower position disables the timeout, 
keeping the siren on until manually reset.  To indicate 
that an alarm has occurred (Alarm Memory), the LED 
will start flashing.  Alarm Memory is cleared after 
approximately 4 hours or by rotating the lock cylinder 
counter-clockwise and removing the key.  Note:  If the 
door is still open after two minutes, the alarm will 
restart.   
J4: Security Level.  Default setting (jumper at upper po-
sition--High Security) enables a latching alarm when 
tripped--siren remains on for 2 minutes or until turned 
off by the key (turn key to the left).  Jumper moved to 
the lower position will set the lower security non-
latching Door Ajar alarm mode--siren turns on when 
door is open, and turns off (and resets) when door is 
closed. 
 Jumpers 5-7:  These jumpers are used for doors that are in-
tended for authorized entry and exit, providing an Arming/Exit 
delay time when exiting, and an Alarm/Entry delay time when 
entering.  Disarming with the key within the programmed time 
will prevent an alarm.  See descriptions for J5 and J6 below for 
specific examples.  Note:  If jumpers J6 and J7 are both moved 
to the lower position, the result is a delay of 2 minutes. 
 J5: Arming/Exit  Delay.  Default (jumper at upper posi-
tion) provides no Arming/Exit Delay.  Jumper moved to 
the lower position enables a fixed 15-second 
Arming/Exit Delay, allowing exit without alarm (i.e. 
the time between turning the key to the left and when 
the system actually arms).  For example, if J5 is at the 
lower position, the protected door can be used as an 
exit door---first, insert and turn metal key to the left, 
then open door, exit, and let the door close.  When the 
delay expires, the PG21 re-arms. 
J6: Alarm/Entry  Delay.  Default (jumper at upper posi-
tion) provides no delay.  Jumper moved to the lower 
position (near the edge of the circuit board) provides 
15 seconds of Arming Delay time.  If jumpers J6 and 
J7 are both enabled, the result is an Alarm Delay of 2 
minutes.  For example, if J6 is at the lower position, 
the protected door can be used as an entry door---
first, open the door from the outside, insert and turn 
metal key to the left, and let the door close.  When the 
delay expires, the PG21 re-arms. 
J7: Alarm/Entry Long Delay.  Default (jumper at upper 
position) provides no delay.  Jumper moved to the 
lower position selects 60 seconds of Arming Delay 
time.  If jumpers J6 and J7 are both moved to the 
lower position, the result is an Alarm Delay of 2 min-
utes. 
J8: Annunciator.  The annunciator provides a 1 second 
beep sound.  The jumper in the factory default posi-
tion (jumper at upper position) disables the beep.  
Jumper moved to the lower position selects the 
beep sound when the door is closed and unit is dis-
armed.  Note:  This jumper selection will operate only 
if the PG21 is mechanically configured to On/Off 
mode (see page 2, Section C, CONFIGURATION). 
J9: Annunciator  Volume.  The jumper in the factory de-
fault position (jumper at upper position) produces a 
low volume beep.  Jumper moved to the lower posi-
tion (near the edge of the circuit board) produces a 
high volume beep. 
 
Jumper Number and De-
scription Jumper Default Position (Upper Position--see Figure 4) Jumper Enabled Position (Down near edge of circuit board) 
J1-Siren: Sweeping  Steady  J2-Siren Pulsing: Disable  Enable  J3-Siren 2-Minute Timeout: Enable  Disable  J4-Security Level: High/Latching Low/Non-Latching J5-Arming Delay: No Arming Delay 15 Seconds J6-Alarm Delay 15 Sec.: Disabled Enabled* J7-Alarm LongDelay 60 Sec.: Disabled Enabled* J8-Annunciator (Beep): Disabled Enabled J9-Annunciator Volume: Low Volume High Volume *NOTE:  If Jumpers 6 and 7 are both enabled, Alarm Delay = 2 minutes 
Jumper Options 
 PCB 
Fig 5.  Reed selection jumper W1 found in the center of the PCB.  
Jumper shown is configured to enable the right reed switch. 
Jumper set 
to right... 
...enables right 
reed switch 
 
Fig 4.  CLEAR Button and Jumpers. 
(Jumpers shown in default (up) positions). 
1 2 3 4 5 6 7 8 9 Clear  
						

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D.   MOUNTING 
Before mounting, install a mortise 
cylinder into the Housing 
Cover (H354-28) as follows: 
1.      Referring to the Figure 5 at 
right, 
         (a)    install mortise cylinder 
(Alarm Lock Model CEM, 
optional) into the Housing 
Cover from the outside with 
the key slot at the 6 oclock 
position; 
         (b)    install the Locking Arm 
(HW1154).  Be sure to route 
the strobe wire under the 
Locking Arm to avoid interfer-
ence (see Fig 5b), then 
screw the Lock Ring (P1267) 
onto the Cylinder as shown 
and tighten using the  
         Spanner Wrench (P4577) supplied.   
 2.     Install the Housing Cover into the 
Baseplate as follows:  Remove all 
keys from cylinder (thus ensuring the 
cylinder is in a 12:00 position).  Hold-
ing the Housing Cover vertically with 
the inside facing toward you (the PC 
board and jumpers can been seen at 
bottom), slide the switch to the right.  
(Note:  Each time the Housing Cover 
is removed, the switch MUST be 
moved to the right before mounting).  Disconnect and recon-
nect the battery and press the Clear button (see Fig. 4).  
Hook the Housing Cover into the clip at the bottom of the 
Baseplate, then gently snap the top of the Housing cover into 
the top of the Baseplate.  DO NOT FORCE.  Note:  If the 
switch is in the wrong position (not moved to the right), or if a 
key is accidentally left inside the cylinder, the Housing Cover is 
specifically designed NOT to lock into the Baseplate.   
        Important:  If the unit has been installed with the aid of the 
template or stickers on the side of the Housing Cover, secure 
the Housing Cover to the Baseplate using the four #8-32 oval-
head screws (supplied) and go to step 3.  Be sure to install the 
longer Tamper Screw into the correct location (see page 7 
Exploded View).  If template or stickers are not available, do 
not install the longer Tamper Screw until the magnet has 
been aligned using the Magnet Alignment Mode as follows: 
 
Magnet Alignment Mode 
         (Note:  This mode is designed to function only after the Clear 
button is pressed--and ends once the Tamper Screw is 
installed).  The template and stickers should be sufficient to 
determine the correct location of the Magnetic Actuator.  If the 
unit has been installed with the aid of the template, proceed to 
step 3.  If labels and templates are missing, use the following 
procedure:   
          Tamper Switch 
        Inside the PG21 is a Tamper Switch, and the longest of the 4 
screws which secure the Housing Cover to the Baseplate is 
the Tamper Screw.  When installed, the Tamper Screw closes 
the Tamper Switch, and the state of the PG21 changes from 
Magnet Alignment Mode (switch open) to normal Standby 
Mode (switch closed).  Therefore, when performing Magnet 
Alignment Mode, do not install the tamper screw until the magnet has been aligned and secured as follows: 
(a)    Place the Magnetic Actuator against the wall, adjacent to 
the bottom of the unit.  Slowly slide the Magnetic Actuator 
upward.  The LED will turn on, indicating closure of the 
reed switch, then turn off.  Mark the door jamb at the 
bottom of the Actuator.  (Note:  Sliding the Actuator still 
further will cause the LED to light again; ignore 
subsequent indications). 
(b)   Similarly, place the Magnetic Actuator against the wall, 
adjacent to the top of the unit.  Slowly slide the Magnetic 
Actuator downward.  The LED will turn on, then turn off 
once again.  Mark the doorjamb at the top of the Magnetic 
Actuator. 
 3.     Install the Magnetic Actuator (Part #P0290) so that it is 
centered between the two marks on the Housing Cover 
sticker, the template, or created during Magnet Alignment 
Mode.  Mark holes, use a 1/8 (0.125) bit, and drill the hole 1 
deep.  Use the two supplied #8 sheet-metal screws (1).  Note:  
On steel frames, it is sometimes necessary to install a non-
magnetic shim or spacer between the magnetic actuator and 
the frame.  This is to prevent the steel frame from absorbing 
the magnets magnetic field, which could cause a constant or 
occasional false alarm condition, and to correct for height dif-
ferences between the door and the doorjamb.  Use the en-
closed spacers or construct a shim 1/2 x 2 1/2 x 1/8 from 
thick non-magnetic material such as plastic, bakelite or rubber.  
Note:  The reed selection jumper W1 should be set to the side 
of the unit that will have the magnet installed (see Figure 5).  
After the Magnetic Actuator has been aligned and mounted, 
the Tamper Screw may be installed.  This will place the unit in 
its normal Standby Mode, ready for use. 
 
REMOVING UNIT 
Remove the PG21 Cover from the Baseplate as follows:  1.     Remove the three #8-32 screws (SC542) and the #8-32 Tam-
per Screw (SC543). 
2.     Push the Cast Housing Cover (H354-28) against its mounting 
location (door or wall). 
3.     Insert key into mortise cylinder, push key and turn counter-
clockwise. 
4.     Turning key counter-clockwise will cause the Housing Cover to 
unlatch from the top of the Baseplate (9HW1146ASSY).  Fi-
nally, unlatch the Housing Cover from the bottom of the Base-
plate.  Remember to slide the switch to the right to prepare for 
re-installation. 
 
E.    FIELD TEST 
1.     With the unit armed and indicator status RED, close door.  A 
brief tone will sound indicating that the unit is armed.  Note:  
Unit will not arm unless the magnet (P0290) is aligned with the 
reed switch selected. 
2.     Open the door and a siren alarm should sound (if no delays 
are set, see options).   
3.     To reset the alarm, turn key fully counter-clockwise to disarm.  
If the PG21 lock is kept in its original factory configuration (in 
Always Armed mode), removal of the key will return the unit 
to armed status.  If On/Off mode was selected, the unit will 
remain in disarmed mode until you remove the key by return-
ing the key position to the center. 
Low Battery   
        In  normal  operation,  whether  armed  or  disarmed,  battery 
status is automatically checked every 4 hours--with each 
check, the LED will blink.  When the battery becomes weak, 
the unit will chirp and the LED will flash about once every 
minute, indicating the need for battery replacement. 
 
Fig. 5. Installing mortise cylinder. 
P4577 
P1267 
HW1154 
 
H354-28 
MORTISE  
CYLINDER CEM 
 
Route Strobe 
Wire under 
Locking Arm 
(HW1154) 
Fig. 5b. Route Strobe W ire 
Locking Arm 
(HW1154)  
						

							5 
MODE NAME FEATURE DETAILS JUMPER  
POSITIONS 
Factory Default 
Highest Security  
Fire/Emergency Exit Door 
Nursing Home Stairwell Door 
Delivery Door--Latching 
Alarm Opening door without key while armed causes a latching alarm (key 
required to silence). 
Key required to exit and to turn off siren after an alarm. 
Alarm siren time-out:  2 minutes. 
After time-out, LED flashes. 
Door can be propped open indefinitely, as follows:  Turn key to the left 
while opening door (this avoids alarm).  After door is opened, re-
lease key.  Door can be left open indefinitely.  When door closes, 
door rearms (with a beep). All Jumpers Up 
Entry/Exit Door with Key 
Needed Key required to enter and exit--but door must be closed within selected 
time or alarm occurs. 
Key required to turn off siren after an alarm. 
Opening door without key while armed causes a latching alarm after 
set delay time. 
Alarm siren time-out:  2 minutes. 
After time-out, LED flashes. 
Add a delay so you can enter or exit without an alarm: 
Add Arming/Exit Delay of 15 seconds:  J5 down only 
Add Alarm/Entry Delay of 15 secs:  J6 down 
Add Alarm/Entry Delay of 1 minute J6 up, J7 down 
Add Alarm/Entry Delay of 2 mins J6 & J7 down Example shown: 
 
J5 down--15 second 
Arming/Exit Delay 
J6 down--15 second 
Alarm/Entry Delay 
Delivery Mode 
Delivery Door--Non-Latching 
Alarm 
Exit Door with Instant Alarm--
No Key needed to si-
lence  Instant non-latching alarm when door is opened, siren turns off and 
alarm resets when door is closed. 
For delivery, turn key to left, open door and prop door open; auto-
rearms when the door closes. J4 down 
2-Minute Delivery Door 
with non-latching alarm 
Door Ajar Mode with 2 min-
ute delay. No key needed to open door without alarm, but if door is left open more 
than 2 minutes, alarm sounds. 
No key needed to silence, just close door. 
Allows door to remain open up to 2 minutes without an alarm.   
 J4, J6 and J7 all down 
1 2 
3 4 
5 6 7 8 9 
1 2 
3 4 
5 6 7 8 9 
1 2 
3 4 
5 6 7 8 9 
Fig. 6.  Jumper Positions.  Jumpers 1-9 shown in 
factory default positions--all jumpers up.   
1 2 3 4 5 6 7 8 9 Clear 
1 2 
3 4 
5 6 7 8 9 
CONFIGURATION EXAMPLES 
Use the PG21 for a variety of applications--emergency fire escape doors, nursing home stairwell doors, rear restaurant doors, and many others.  
To change the way the PG21 operates when in use, two areas of the PG21 can be configured:  (a) the PC Board jumpers and (b) the Torsion 
Spring connection.  Listed below are pre-defined modes for typical applications.  Simply select a mode, configure the jumpers and/or spring, and 
put your PG21 into use.  NOTE:  Always Armed mode (Torsion Spring connected--factory default) is in effect unless otherwise stated. 
Cam 
Assembly 
Torsion 
Spring 
Fig. 7.  Torsion Spring connected--Always Armed mode (left) and discon-
nected--On/Off mode (right).  See CONFIGURATION on page 2 
continued  
						

							6 
MODE NAME FEATURE DETAILS JUMPER  
POSITIONS 
For Multiple Door Installa-
tions A PG21 installed on several doors each with its unique siren sound.   
Four siren sounds:  Sweep, Pulsing Sweep, Steady, Pulsing Steady.   
Set a different siren sound for each door in order to easily identify 
which door has been accessed.  Jumpers 1 and 2 are config-
ured.  
Sweep 
 
 
 
Pulsing Sweep 
 
 
 
Steady 
 
 
 
Pulsing Steady 
 
Door Ajar Mode 
Exit/Entry Door without Key 
Needed 
No Key Passage Mode 
Friendly Mode You can enter or exit without key.  Door can remain open without 
alarm for length of delay time.  If door left open past delay time, 
siren will sound until door is closed. 
Closing door turns siren off and rearms (no key required--just close 
door). 
Auto re-arming does not sound a chirp. 
Add a delay so you can enter or exit without an alarm: 
Add Arming/Exit Delay of 15 seconds:  J5 down only 
Add Alarm/Entry Delay of 15 secs:  J6 down 
Add Alarm/Entry Delay of 1 minute J6 up, J7 down 
Add Alarm/Entry Delay of 2 mins J6 & J7 down 
 
 Example shown: 
J4 down--Non-
Latching Alarm. 
J6 down--15 second 
Passage Time/
Door Open Time 
On/Off Mode 
Manual Arm/Disarm Door Manual Arming Mode (On /Off mode.  See page 2, Configuration). 
Torsion Spring disconnected from Cam Assembly.   
Manually arm or disarm system for extended periods of time.  No Auto-
rearm. 
Mechanical configuration required. 
 All Jumpers up 
Back Door Annunciator For use only with On/Off mode when unit is disarmed with a key.  
PG21 will beep for 2 seconds when door is opened while disarmed.  
Jumper J9 determines volume of chirp:  (up = low volume, down 
= high volume). J8 & J9 down 
1 2 
1 2 
1 2 
1 2 
CONFIGURATION EXAMPLES (contd) 
1 2 
3 4 
5 6 7 8 9 
1 2 
3 4 
5 6 7 8 9 
1 2 
3 4 
5 6 7 8 9  
						

							7 
EXPLODED VIEW 
Fig. 7  Exploded view with part numbers  
						

							8 
ALARM LOCK LIMITED WARRANTY 
ALARM LOCK SECURITY SYSTEMS, INC. (ALARM LOCK) warrants its products to be free from 
manufacturing defects in materials and workmanship for 24 months following the date of manufacture. ALARM 
LOCK will, within said period, at its option, repair or replace any product failing to operate correctly without charge 
to the original purchaser or user. 
This warranty shall not apply to any equipment, or any part thereof, which has been repaired by others, 
improperly installed, improperly used, abused, altered, damaged, subjected to acts of God, or on which any serial 
numbers have been altered, defaced or removed. Seller will not be responsible for any dismantling or reinstallation 
charges. 
THERE ARE NO W ARRANTIES, EXPRESS OR IMPLIED, W HICH EXTEND BEYOND THE DESCRIPTION 
ON THE FACE HEREOF. THERE IS NO EXPRESS OR IMPLIED WARRANTY OF MERCHANTABILITY OR A 
WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE. ADDITIONALLY, THIS W ARRANTY IS IN LIEU OF 
ALL OTHER OBLIGATIONS OR LIABILITIES ON THE PART OF ALARM LOCK. 
Any action for breach of warranty, including but not limited to any implied warranty of merchantability, must be 
brought within the six months following the end of the warranty period.  
IN NO CASE SHALL ALARM LOCK BE LIABLE TO ANYONE FOR ANY CONSEQUENTIAL OR INCIDENTAL 
DAMAGES FOR BREACH OF THIS OR ANY OTHER WARRANTY, EXPRESS OR IMPLIED, EVEN IF THE 
LOSS OR DAMAGE IS CAUSED BY THE SELLERS OWN NEGLIGENCE OR FAULT. 
In case of defect, contact the security professional who installed and maintains your security system. In order to 
exercise the warranty, the product must be returned by the security professional, shipping costs prepaid and 
insured to ALARM LOCK. After repair or replacement, ALARM LOCK assumes the cost of returning products 
under warranty. ALARM LOCK shall have no obligation under this warranty, or otherwise, if the product has been 
repaired by others, improperly installed, improperly used, abused, altered, damaged, subjected to accident, 
nuisance, flood, fire or acts of God, or on which any serial numbers have been altered, defaced or removed. 
ALARM LOCK will not be responsible for any dismantling, reassembly or reinstallation charges. 
This warranty contains the entire warranty. It is the sole warranty and any prior agreements or representations, 
whether oral or written, are either merged herein or are expressly canceled. ALARM LOCK neither assumes, nor 
authorizes any other person purporting to act on its behalf to modify, to change, or to assume for it, any other 
warranty or liability concerning its products. 
In no event shall ALARM LOCK be liable for an amount in excess of ALARM LOCKs original selling price of the 
product, for any loss or damage, whether direct, indirect, incidental, consequential, or otherwise arising out of any 
failure of the product. Sellers warranty, as hereinabove set forth, shall not be enlarged, diminished or affected by 
and no obligation or liability shall arise or grow out of Sellers rendering of technical advice or service in connection 
with Buyers order of the goods furnished hereunder. 
ALARM LOCK RECOMMENDS THAT THE ENTIRE SYSTEM BE COMPLETELY TESTED WEEKLY. 
Warning: Despite frequent testing, and due to, but not limited to, any or all of the following; criminal tampering, 
electrical or communications disruption, it is possible for the system to fail to perform as expected. ALARM LOCK 
does not represent that the product/system may not be compromised or circumvented; or that the product or 
system will prevent any personal injury or property loss by burglary, robbery, fire or otherwise; nor that the product 
or system will in all cases provide adequate warning or protection. A properly installed and maintained alarm may 
only reduce risk of burglary, robbery, fire or otherwise but it is not insurance or a guarantee that these events will 
not occur. CONSEQUENTLY, SELLER SHALL HAVE NO LIABILITY FOR ANY PERSONAL INJURY, 
PROPERTY DAMAGE, OR OTHER LOSS BASED ON A CLAIM THE PRODUCT FAILED TO GIVE WARNING. 
Therefore, the installer should in turn advise the consumer to take any and all precautions for his or her safety 
including, but not limited to, fleeing the premises and calling police or fire department, in order to mitigate the 
possibilities of harm and/or damage. 
ALARM LOCK is not an insurer of either the property or safety of the users family or employees, and limits its 
liability for any loss or damage including incidental or consequential damages to ALARM LOCKs original selling 
price of the product regardless of the cause of such loss or damage. 
Some states do not allow limitations on how long an implied warranty lasts or do not allow the exclusion or 
limitation of incidental or consequential damages, or differentiate in their treatment of limitations of liability for 
ordinary or gross negligence, so the above limitations or exclusions may not apply to you. This Warranty gives you 
specific legal rights and you may also have other rights which vary from state to state.