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3

Keypad Wiring

See Figure 6 for an example of a basic door installation. The 
keypad is mounted adjacent to the door. An electric door strike 
is mounted in the door jamb to release the door lock. A magnetic 
switch is mounted on the top of the door jamb for detecting when 
the door is open.
Use the following steps to wire the keypad. Refer to the wiring 
diagram shown in Figure 7 to assist in the wiring.

 

NOTE:

 Up to 500 feet of 18 AWG wire can be run for power, 

use larger wire for longer runs. Use 22 AWG or larger 
(depending on the load) for other connections.

OUTPUT

  Install a low voltage electric door strike for unlocking the 

door.

  Route two wires between the door strike and the keypad 

box. Connect one of the door strike wires to the keypad’s 

MAIN RELAY N.O.

 terminal (TB1 #3). Connect the other 

door strike wire to the keypad’s 

AC/DC +

 terminal (TB1 #1). 

Connect a wire between the keypad’s 

AC/DC -

 terminal 

(TB1 #2) and the 

MAIN RELAY COM

 terminal (TB1 #4).

POWER

  Choose a location for the power supply or transformer.

  Route two wires between the power supply and the keypad 

box. Connect the power supply’s output terminals to the 
keypad’s 

AC/DC

 input terminals (TB1 #1 & #2). Observe 

wiring polarity if using DC.

  CAUTION: If the unit is AC powered, make sure the 

secondary of the system transformer is isolated from 
earth ground.

EARTH GROUND

  To avoid damage to the unit from static discharges, connect 

the 

EARTH GROUND

 black wires E1, 4, 5 or 7 to a good earth 

grounding point. Suggested wiring size is 18 AWG for earth 
ground.

SENSE INPUT

 

NOTE:

 

SENSE

 terminal (gray wire) can be programmed for 

either a door sense or inhibit input. Both features cannot be 
used at the same time.

  To use the door sense feature to detect forced entry or door 

ajar conditions, install a 

normally closed

 door switch on the 

door and route two wires from the switch to the keypad box. 
Connect the door switch to the keypad’s 

SENSE

 input (gray 

wire, E8) and 

COM

 (any black wire).

  If an inhibit switch or timer is going to be used for 

temporarily disabling the keypad, route two wires from the 
switch or timer to the keypad box. Connect the inhibit switch/
timer 

normally open

 terminals to the keypad’s 

SENSE

 input 

(gray wire E8) and 

COM

 (any black wire).

REQUEST-TO-EXIT INPUT (wiring shown on Page 1, Figure 2)

  If a request-to-exit pushbutton is going to be used, route two 

wires from the keypad box to a normally open pushbutton 
mounted on the secure side of the door. Connect the wires 
to the pushbutton and to the keypad’s 

EXIT

 input (violet wire, 

E6) and 

COM

 (any black wire).

Solid State Outputs

The two solid state outputs (Output #3 & Output #4) can be 
programmed to activate during various conditions. These outputs 
can be used to activate indicators or sounders. See Figure 8 for 
wiring examples using the solid state outputs.

228037 A     IMAGE 5

Figure 6. Basic Door Installation

1

2 3

4 5 6

7

9

1 WIRE
TO EARTH
GROUND

DOOR

S

EN

S

E

S

WITCH

ELECTRIC

DOOR

S

TRIKE

AK-

3

1

KEYPAD

2 WIRE

S

FOR DOOR

S

TRIKE

2 WIRE

S

FOR DOOR

S

EN

S

E

S

WITCH

2 WIRE

S

FROM
POWER

S

UPPLY

Figure 7. Basic Door Installation Wiring

1 - AC OR DC

2 - AC OR DC

3

 - N.O.

4 - COM

5 - N.C.

6

7

8

MAIN

RELAY

5 AMP

S

 MAX.

TERMINAL

BLOCK 1

12-24 VOLT

AC OR DC

POWER

SUPPLY

ELECTRIC

DOOR

STRIKE

S

EN

S

E - 

8

COM - 7

6

EARTH GROUND - 5

4

3

2

1

GROUND

STAKE

N.C. DOOR

SENSE

SWITCH

TERMINAL

BLOCK 1

(TB1)

AK-31 REAR VIEW

BLACK

WIRE

S

GRAY

BLACK

1

4

OUTPUT #

3

OUTPUT #4

DC

POWER

S

OURCE

LED

LED

ELECTRONIC
BEEPER

OUTPUT #3 LIGHTS A LAMP POWERED FROM AN EXTERNAL SOURCE
OUTPUT #4 TRIGGERS A NORMALLY OPEN ALARM PANEL ZONE

OUTPUT #

3

OUTPUT #4

EACH

OUTPUT

100 mA

MAXIMUM

ALARM PANEL

N.O. ZONE

COMMON

END-OF-LINE
RE

S

I

S

TOR

POWER

S

OURCE

LOW VOLTAGE
LAMP

1

3

2

TERMINAL

BLOCK #1

OUTPUT #3 LIGHTS AN LED
OUTPUT #4 LIGHTS AN LED AND SOUNDS A BEEPER

OUTPUT #4 COM

OUTPUT #

3

 COM

EXAMPLE #2

EXAMPLE #1

BLUE

GREEN

3

2

BLUE

GREEN

BLACK

BLACK

1K 

Ω

 @ 12 volt

s

2K  

Ω

 @ 24 volt

s

Figure 8. Using Solid State Outputs

Summary of Contents for AK-31

Page 1: ...1 2 3 4 5 6 7 8 9 0 AK 31 Digital Keyless Entry System 760 438 7000 USA Canada 800 421 1587 800 392 0123 Toll Free FAX 800 468 1340 www linearcorp com Installation and Programming Instructions ...

Page 2: ...s and programming even without power An internal jumper is provided to reset the master code The Main Relay has a 5 Amp capacity The Auxiliary Relay has a 1 Amp capacity Two solid state outputs capable of switching 100 mA to common are programmable to signal forced entry door ajar lockout alarm circuit shunting request to exit and keypad active conditions FEATURES KEYPAD PROGRAMMABLE No programmer...

Page 3: ...DC MAX AUXILIARY RELAY 1 AMP 28 VDC MAX TERMINAL BLOCK 1 WIRES AK 31 TERMINALS CAUTION IF THE UNIT IS AC POWERED MAKE SURE THE SECONDARY OF THE SYSTEM TRANSFORMER IS ISOLATED FROM EARTH GROUND OPTIONAL WIRING REQUIRED WIRING OTHER WIRING NOTES 1 ALARM SHUNT SET FOR AUXILIARY RELAY 2 GRAY WIRE SET FOR DOOR SENSE GROUND STAKE N C DOOR SWITCH ALARM CONTACT TO ALARM SYSTEM POWER SUPPLY ELECTRIC DOOR S...

Page 4: ...in the wall Screw the mounting plate onto the electrical box see Figure 4 Final Keypad Installation After wiring the keypad see next page complete the installation by securing the keypad to the mounting plate If a lower beeper sound level is required before installing the keypad remove Jumper at P4 place the jumper block on one pin to save the jumper Hook the keypad assembly onto the mounting plat...

Page 5: ...e switch to the keypad box Connect the door switch to the keypad s SENSE input gray wire E8 and COM any black wire If an inhibit switch or timer is going to be used for temporarily disabling the keypad route two wires from the switch or timer to the keypad box Connect the inhibit switch timer normally open terminals to the keypad s SENSE input gray wire E8 and COM any black wire REQUEST TO EXIT IN...

Page 6: ... during programming to clear the keypad and re enter the command Press 9 Setting Entry Code Length Default 4 digits Press 0 3 Length Length 1 6 for entry code length NOTE If the Entry Code Length is going to be changed from the factory default of four digits make this change first before programming any entry codes Adding a New Entry Code Press 01 Code Code Action Code The new entry code 1 999999 ...

Page 7: ...o 2 seconds Press 1 4 Output Output Output to Activate 0 4 1 Main Relay 2 Auxiliary Relay 3 Output 3 4 Output 4 0 No Output Select Alarm Shunt Output Default No Output Sets which output activates during the time access is granted Use this output to shunt alarm contacts attached to the access door This output may be timed or toggled Press 1 5 Output Output Output to Activate 0 4 1 Main Relay 2 Auxi...

Page 8: ...maximum ENVIRONMENTAL Temperature 22 F to 149 F 30 C to 65 C Humidity 5 to 95 non condensing LINEAR LIMITED WARRANTY This Linear product is warranted against defects in material and workmanship for twenty four 24 months The Warranty Expiration Date is labeled on the product This warranty extends only to wholesale customers who buy direct from Linear or through Linear s normal distribution channels...

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