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8.
Electrical installation and interface operation
Electrical installation
Electrical installation shall only be done when the system is under no power.
Connection of the keypad module is realized with the 6-pin sealed Deutsch connector DT04-
6P which is mounted to the cable.
Caution!
The vehicle electrical system has to be equipped with a sufficiently selected
suppressor diode to clip possible incoming overvoltage peaks before they
arrive at the keypad according to DIN EN 16750-2 (Load Dump Test B) if a
keypad with no load dump protection is selected. If a keypad with integrated
load dump protection circuit is selected, an extern mounted suppressor
diode are omitted.
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Damaging to the keypad
8.1.1
Pinning
Please refer to „1707 product information”.
CAN bus termination on the keypad is not implemented by default. It has to be realized in the
network externally according to ISO11898.
Warning!
Cable must not be shortened. Connector must not be separated from the
cable.
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Damaging to the keypad
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Loosing liability for defects
Booting and resetting behaviour
On first start-up and with a power reset the keypad will revert to its values that are saved in the
non-volatile memory. All changes that were done to it and not saved in non-volatile memory
will be reset. Certain objects of the keypad cannot be saved to non-volatile memory. That
means that these values are reset with every power reset and will only be able to be activated
by sending the corresponding CAN messages. All the objects that function in this way can be
found in the K-Matrix. For example the objects that include the activation of the LEDs are
always saved in volatile memory (after reset all LEDs will be turned off).
If a button is pressed before start-up or whilst a reset is performed. The button needs to be
released and pressed again whilst the keypad is running for it to be detected.