Velleman HAA2801 User Manual

Page 8

THE NECESSARY CONNECTIONS FOR SPLIT-DECODED

THE FUNCTION MODE JUMPER SETTING FOR SPLIT-DECODED -- (HAA2800 ONLY)

NOTE: No Function Jumper setting is required for the HAA2801. It is fixed in Split-Decoder

mode.

1) Put the

“Function Mode Jumper” to position “1” for Split-Decoder. (It is an Ex-factory Setting)

2) Set the

“Link-up Jumper” from OFF to ON position to enable the link-up of acquiring the link-up

code from the keypad (same as the Master Code of the keypad).

a)
b)

Remark:

c)
d)

THE LINK-UP JUMPER & LINK-UP CODE ACQUISITION

To acquire the link-up code (same as the Master Code) from the Master keypad for Split-Decoded

operation is necessary. At any time, when you operate a new Master keypad at the first time it is

necessary to let the decoder unit to know the Master Code of the keypad. Otherwise, the decoder can

not recognize the data from it. If more than one keypads are going to link up with the decoder, all the

keypads are required to have the same Master Code and repeat link-up is not necessary.
The decoder executes Link-up Acquisition

Only Once at the moment after setting of the Master

Keypad to exit Programming Mode with

Connect the

Data I/O ports of the Decoder (Terminal 4) and the Keypad with wire to link-up the

communication of the two units.

Connect the

Keypad PWR terminal of the Decoder (Terminal 3) to the keypad power input terminal,

which supplies power to the keypad unit with current limit protection.

Connect the

Common (-) Ground (Terminal 2 or 11) to the (-) ground of the keypad unit to make

up the return path for the data and the power source.

Make all other installation connections to the decoder unit, but not to the keypad unit in Split-

Decoded Mode. The system provides full feature from the decoder unit according to the functions

programmed in the keypad.

The Function Jumper of the HAA2800 has been put on Position 1 at the factory. Setting of the

jumper is usually not necessary unless it has been changed. Always put jumper on position “1”

for Split-decoded mode.

The Function Jumper is located on the Main Circuit Board inside the box. Change the setting for

Stand Alone mode is required. See Figure 2.

The Jumper is located on the main circuit board inside the terminal compartment. See Figure1.
The Decoder executes link-up

Only Once. The Link-up execution is done when the keypad exits

from Programming Mode after pressing

. Put the jumper back to OFF position after link up.

After the decoder knows the link-up code (Master Code) of the keypad it is not necessary to

repeat the link-up procedure in feature change programming except change of the Master Code.

All the keypads going to link up with the decoder

MUST be with the same Master Code which is

the authorization code to enable the data communication between the keypads and the decoder.

It is not necessary to repeat the link-up procedures for the slave keypads with the same Master

Code. Just simply connect them in parallel with the master keypad.

The decoder will refuse other keypads that are not in the same Master Code to link up with it.
The failed keypads in the link-up will generate warning beeps.