A self-contrined
keyless entry system ideal for a wide range of interior applications.
Linear's AK-2 digital keypad entry
system is an excellent way to control access at a single interior
entry pint for up to 480 users. Its distinctive appearance is
made all the more unique b interchangeable bezels designed to
fit right into the decor of its mounting location. Rugged metal
keys futher differentiate it from standard keypads that use plastic
keys. An operating voltage of 12 to 24 nolts AC or DC makes the
AK-2 suitable for virtually any interior keypad application.
Ease of use is another key feature.
A striking downlight illuminates the keypad at all times at 25%
brightness. When a key is pressed, brighness is increased to full
strength and remains on at that level for two minutes. An internal
sounder beeps with each key press and can be programmed to remain
on for the duration of an active output (relay or solid state).
Each uses is assigned a one-to-six
digit PIN code. Valid entry of this PIN activates either or both
of the AK-2's relays, which initiates an action, such as releasing
a door strike/magnetic lock. The AK-2 will lock out all entry
for a full 60 seconds following several invalid entry code attempts
(programmable from two to seven attempts). In addition, an "anti-passback"
feature prevents use of the same code twice before a programmed
time elapses.
The system features four independent
outputs with four independent timers. Many input/output programming
options are available. For instnce, the AK-2's door sense/inhibit
input offers a choice: if programmed for door sense, it causes
a switch on the door to detect forced entry or door ajar situations;
if programmed for forced entry or door ajar situations; if porgrammed
for inhibit, it can be wired to a service switch or automatic
timer that will display relay # 1 as required. The system also
has a request-to-enter input that can be wired to a pushbutton
or fire access keyswitch to provide "codeless" entry
for authorized personnel. The AK-2 can be wired to shunt alarm
contacts on thedoor or gate to prevent alarm triggering when authorized
access occurs.
The system's two solid-state outputs
can switch 100 mA to common and are programmable to signal forced
entry, door adjar, lockout, alarm circut shunting, request-to-enter,
and keypad active conditions.
Other features programmable from
the system's keypad include: entry code length (1 to 6 digits);
adding a new PIN, erasing a single PIN's; changing master programming
code; and on-time for each of the four outputs. EEPROM menory
retains all entry codes and programming, even without power.
