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CONTENTS

INTRODUCTION

Linear’s AK-2 is a digital keyless entry system designed for access control 
applications. The keypad is housed in a rugged, plastic enclosure and is 
designed to be mounted in a standard single-gang electrical box. The die-cast 
keys have bright, easy-to-read yellow graphics.
The Model AK-2 is supplied with four different plastic snap-on mounting bezels to 
customize the look of the keypad. The satin-chrome bezel comes factory installed 
on the keypad. The white, ivory & bronze bezels are packaged separately. 
Up to 480 entry codes, from 1 to 6 digits in length, can be programmed. They can 
activate either, or both, of the relay outputs. The “anti-passback” feature prevents 
using the same code again before the programmed time elapses.
All system indicators and lights are long-lasting, solid-state LEDs. Two indicators 
show the status of the entry system. The left indicator lights red to indicate power, 
then turns green when access is granted. The right indicator lights yellow when 
the keypad is in “lockout” condition (from too many incorrect code entries). The 
keypad’s courtesy light dimly illuminates the keys at all times. The courtesy light 
brightly illuminates the keys for two minutes after any key is pressed. An internal 
sounder beeps when each key is pressed. An internal jumper sets the sounder 
volume high or low.
The 

SENSE

 input can be used two ways. If programmed for “door sense” the 

input is wired to a normally closed switch on the door to detect when the door is 
open or closed. Forced entry or door ajar situations can then be detected. Using 
door sense, the “Auto-relock” feature will prevent “tailgating” by turning off the 
Main Relay output immediately when the door is closed after access has been 
granted. If the 

SENSE

 input is programmed for “inhibit”, the input can be wired 

to a “service” switch or automatic timer that will disable the Main Relay when 
required.
The 

REQUEST-TO-EXIT

 input can be wired to a pushbutton to provide 

codeless activation of Main Relay, Auxiliary Relay, Output #3, or Output #4 
(programmable).
The 

ALARM SHUNT

 output activates when access is granted. This output can 

be wired to shunt alarm contacts on the access door/gate to prevent triggering of 
an alarm when authorized access occurs.
The AK-2 is powered from a 12-24 Volt AC or DC source. Power can be obtained 
from the access device or a separate power supply. The EEPROM memory 
retains all entry codes 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

 FOUR INTERCHANGEABLE KEYPAD BEZELS

Supplied with Model AK-2

 KEYPAD PROGRAMMABLE

No programmer required

 480 ENTRY CODE CAPACITY

Ideal for small & medium traffi c installations

 1-6 DIGIT ENTRY CODE LENGTH

Flexible code length for different applications

 4 INDEPENDENT OUTPUTS (TIMED/TOGGLED)

Each output’s action is programmable

 4 INDEPENDENT TIMERS

Each output’s activation time is programmable

 TWO FORM “C” (N.O. & N.C) RELAY CONTACTS

Main Relay 5-Amp @ 28 VDC capacity,
Auxiliary Relay 1-Amp @ 28 VDC capacity

 EACH ENTRY CODE CAN ACTIVATE EITHER OR BOTH RELAYS

Specifi c entry codes can grant access to different doors

 TWO SOLID STATE OUTPUTS

Auxiliary outputs can indicate access status on external devices

 TWO STATUS INDICATORS (2-COLOR RED/GREEN & YELLOW)

Displays access, lockout, and programming information

 WHITE SOLID-STATE LED COURTESY LAMP

Low level at idle, high level during keypad use

 PIEZO SOUNDER (TWO SELECTABLE VOLUME LEVELS)

Programmable for beeps during key presses and output activations

 TIMED ANTI-PASSBACK

Disables entry code for a programmed time after use

 AUTO-RELOCK

Releases the main relay as soon as the door shuts

 KEYPAD LOCKOUT

Locks the keypad after too many incorrect entries

 TACTILE KEY FEEL

Assures complete key presses

 DOOR SENSE INPUT

For sensing door position to control auto-relock and door-ajar features

 INHIBIT INPUT

For temporarily disabling access with a timer or switch

 REQUEST-TO-EXIT INPUT

For codeless activation with a pushbutton

 KEYPAD CAN BE POWERED FROM 12-24 VOLTS AC OR DC

Power can be supplied from a transformer, battery, or power supply

218370 C     IMAGE 2

COMPONENT LOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Opening the Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Changing the Keypad’s Bezel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Install the Electrical Box and Mounting Plate . . . . . . . . . . . . . . . . . . . . . . 2
Final Keypad Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Keypad Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Solid State Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

FACTORY DEFAULTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
BASIC PROGRAMMING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
PROGRAMMING OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
RESETTING KEYPAD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Master Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Resetting the Master Code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

AK-2 OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
LINEAR LIMITED WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
IMPORTANT !!! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
FCC NOTICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Summary of Contents for AK-2

Page 1: ...7 800 392 0123 Toll Free FAX 800 468 1340 www linearcorp com 218370 C IMAGE 1 PRINTER S INSTRUCTIONS INSTR INSTL AK 2 LINEAR P N 218370 C INK BLACK MATERIAL 20 LB MEAD BOND SIZE 8 500 X 11 000 SCALE 1...

Page 2: ...be obtained from the access device or a separate power supply The EEPROM memory retains all entry codes and programming even without power An internal jumper is provided to reset the master code The...

Page 3: ...1 12 24 VOLT AC OR DC POWER MAIN RELAY 5 AMPS 28 VDC MAX AUXILIARY RELAY 1 AMP 28 VDC MAX TERMINAL BLOCK 2 TERMINAL BLOCK 1 AK 2 TERMINALS CAUTION IF THE UNIT IS AC POWERED MAKE SURE THE SECONDARY OF...

Page 4: ...e or access device Install the electrical box in the wall Screw the mounting plate onto the electrical box see Figure 5 Final Keypad Installation After wiring the keypad see next page complete the ins...

Page 5: ...route two wires from the switch to the keypad box Connect the door switch to the keypad s SENSE terminal TB1 8 and COM terminal TB1 7 If an inhibit switch or timer is going to be used for temporarily...

Page 6: ...1 Code Code Relay Code The new entry code 1 999999 depending on code length Relay Relay output entry code will activate 1 Main Relay 2 Auxiliary Relay 3 Both Relays The yellow indicator will flash qui...

Page 7: ...ts which output activates when the keypad is locked out after too many incorrect entry code attempts The lockout time is 60 seconds Press 1 3 Output Output Output to Activate 0 4 1 Main Relay 2 Auxili...

Page 8: ...C Current 30 mA typical 150 mA maximum Outputs Main Relay Form C 5 Amps 28 Volts maximum Auxiliary Relay Form C 1 Amp 28 Volts maximum Solid state outputs Outputs 3 4 Short to common 100 mA 24 VDC max...

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