Linear's AccessKey digital keypad entry system is an excellent way to control access at a single entry point for facilities with up to 480 users. Each user is assigned a PIN - keypad entry of a valid one-to-six digit code activates either or both of AccessKey's relays, which initiates an action, such as releasing a door strike/magnetic lock or triggering a gate operator.

Operation is simple. Pressing any key activates a down light that stays lit for two minutes. If the user presses a wrong key, the * key can be used as a reset. When a valid PIN is entered, the power LED indicator turns from red to green and the programmed relay activates for the programmed time. Too many incorrect PIN entries will cause a lockout condition indicated by a separate yellow LED. A security feature called "anti-passback" 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 instance, AccessKey'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 inhibit, it can be wired to a service switch or automatic timer that will disable 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.

When AccessKey grants access, its alarm shunt output is activated. It can be wired to shunt alarm contacts on the door 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 ajar, lockout, alarm circuit shunting, request-to-enter, and keypad active conditions.

Other features programmable from the system's keypad include: system reset key or keys (* or * 9 #); entry code length (1 to 6 digits); adding a new PIN; erasing a single PIN; erasing all PINs; changing master programming code; on-time for each of the four outputs; beep sounds on key presses; beep sounds during each of the four outputs; keypad lockout on specified number of incorrect PIN attempts (from 2 to 7); and anti-passback time period (from 1 to 4 minutes or no anti-passback protection).

AccessKey is powered from a 12-24 Vac or Vdc source. Power can be obtained from the access device or a separate supply. EEPROM memory retains all entry codes and programming are retained, even without power.

General Specifications

MECHANICAL

Dimensions: 4.00 in W x 5.50 in H x 3.00 in D (101.6 x 139.7 x 76.2 mm)

ELECTRICAL

Voltage: 12-24 Volts ac or dc (ac supply must be transformer isolated)

Current: 10 mA typical, 150 mA maximum

Outputs: Relay #1, Form "C" 5 Amps @ 24 Volts maximum; Relay #2, Form "C" 1 Amp @ 24 Volts maximum; solid-state outputs (Outputs #3 and #4), short-to-common 100 mA @ 30 Vdc maximum

ENVIRONMENTAL

Temperature: -22°F to +149°F (-30°C to +65°C)

Humidity: 5% to 95% non-condensing