Technical Manual

WH Münzprüfer Dietmar Trenner GmbH, Germany Technical Manual BLK 100
version 1.90
BLK 100 subject to technical modification page 5/11
Fig. 1 LEDs, user interface BLK 100
If the red LED is on continuously the process failed.
Fig. 2 Red LED on, a failure occurred
If the red LED is flashing with the key in front of the key fob reader an
invalid “Pay Key” (wrong operator or wrong currency) has been
presented.
2. Serial Interface
The serial interface of the key fob reader BLK 100 communicates with
different protocols with the machine controller. There are different serial
protocols implemented for washers and dryers.
3. Changing the Operator
The key fob reader is delivered without an operator programmed. The
device needs to be personalized prior to usage. This is done with the help
of the “Operator Key” that is provided with the Central Pay Machine or
separately.