Specifications

Wireless Keypads (WK820/RC840)

INTRODUCTION

The WK820 and RC840 are one-way wireless

keypads primarily designed as additional arming

stations, including three arming keys that enable Full,

Part or Perimeter arming modes. Pressing the Full

and Perimeter buttons simultaneously generates an

SOS panic alarm. Additionally, the keypad may be

used to control Home Automation modules.

Figure B.13: WK820

The WK820 also includes an additional Cancel key 9 that clears the keypad in the event

that a key is pressed by mistake while entering a code, for example. This key causes the

keypad to disregard what was previously entered enabling the user to start again.

REGISTRATION PROCEDURE

To register wireless keypads:

1. From the Programming menu, select Devices, Keypads [913].

2. Select the keypad you want to register; the system initiates

Registration mode.

3. Press a button on the keypad making sure that a LED lights up

when the button is pressed.

4. Press the same button again. When Save? appears on the

panel’s LCD display, press 9.

BATTERY REPLACEMENT (WK820)

Figure B.14: RC840

Every time a key is pressed, one of the battery status LEDs is lit. When the battery needs

to be replaced, the red Low Battery LED is lit.

To replace the battery:

1. Insert a small screwdriver into the pry-off slots at the bottom of the unit and twist

to remove the back cover.

2. Observing correct polarity, replace the battery (9V, alkaline).

3. Replace the back cover making sure that the two covers click shut.

lkaline

Battery

Tampe

Switch

Buzze

Figure B.15: WK820 (back cover off)