Radiometrix Ltd

KDEC

page 3

Clearing the memory

When the memory is full, no new transmitters can be learned. To clear the memory of all stored transmitters,

the Learn button is pressed and held for more than 6s approx. The Learn LED will go out and upon releasing

the button it will flash once to indicate that the memory has been cleared. It is not possible to remove

individual transmitters from the memory.

Jumper settings

Jumper

Function

Position A

(or not fitted at all)

Position B

T

KDEC Type

KFX Keyfob optimised

KTX Module optimised

M

Relay Mode

Momentary

Latching / Toggled

Jumper T position is only read at power-up and should be set before power is applied.

Jumper M position is read repeatedly during operation and can be changed at any time.

SAFETY WARNING: Extra care should be taken when handling the electrical connection from relay to 250AC

device. Mains power should be disconnected before connecting the wires to 3-way terminal blocks to prevent

electric shock. Exposed wires or terminal block should not be touched during evaluation.

Figure 2: Component layout and Dimensions