Stand Alone Low-Cost Interior Digital
Keypad The New Model AK-31 Low-cost Interior Digital
Keypad is a digital keyless entry system designed for access control applications. This
unit replaces the Model AK-3 with added programming features. 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. 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. Relay #1 has a 5 Amp capacity. Relay #2 has a 1 Amp capacity.
The relays can be set for timed or latch-on/latch-off toggle operation per each individual
entry code. The on or off toggle state of a relay is maintained even after power
interruption. When power is restored to the keypad, each relay will assume the state it
was in when power was removed. 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). An internal sounder beeps when each key is pressed. An internal
jumper sets the sounder volume high or low. 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) for authorized personnel. The “anti-passback” feature
prevents using the same code twice before the programmed time elapses. 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.
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-enter, and keypad
active conditions.
Features:
- Self-contained keyless entry system ideal for airports, hospitals, warehouses, office
buildings, parking lots, and many other commercial facilities
Mounts in a single gang electrical box using security screws; tool included
Four independent outputs and timers: two form C relays and two solid-state open
collector outputs with unique programming per entry code
Up to 480 programmable input codes of one to six digits each for activating either or
both relays
Two LED indicators show system status
Rugged metal keys
Built-in LED downlights
Tactile and audible feedback
 EEPROM memory retains all entry codes and programming, even without power
Dimensions: 3" W x 5" H x 3" D
Power: 12 to 24 volts, AC or DC (AC
supply must be isolated from access device); power can be from access device or separate
supply
Current: 30 mA typical, 150 mA
maximum
Operating Temperature: -22º to
+149º F
Installation
Manual
Keypad Flyer
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