G-13.mft standard/Casino/SGI/BDTA/AMU
F
UNCTION
21
National Rejectors, Inc. GmbH, Buxtehude
Transfer of coin values by means of coin impulses and via
coin signal lines
By default each coin accepted by the coin validator passes on one impulse
(AMU model: one pre-signal and one coin signal, see below) to the machine
control system on the coin signal line assigned to that coin. An impulse tells
the machine control system that a coin has been accepted.
Depending on the coin signal line selected the machine knows what the coin
type is (what coin value).
The assignment between coin type and coin signal line is programmed by
the manufacturer according to the customers’ specifications.
You can also assign a certain combination of signal lines, i.e.
several signal lines, to a coin type in order to be able to
differentiate.
If more coin types should be programmed than signal lines available, coin
types can also be assigned several coin impulses (multiple impulses) per
coin so that the machine no longer differentiates by the signal line but by the
impulse number (not with AMU model). In such a case, coin types with a
higher denomination are assigned a multiple of a smaller coin, i.e. if, for
example, a 2 euro coin was inserted, the machine control unit would be sent
two coin impulses on the coin signal line assigned to the 1 euro coin.
The number of coin impulses is programmed by the manufacturer according
to the customers’ specifications.
Coin signal processing of the AMU model
After an accepted coin passed the accepted coin sensors, the G-13.mft
standard model transmits a simple coin signal to the machine (see section
"Accepted coin sensors" in this chapter). Whereas the AMU model divides
this signal into a pre-signal and the real coin signal, so that the machine is
able to inform the validator during the pre-signal whether this coin is to be
accepted or not:
1. 10-ms pre-signal, transmitted after coin measurement but before coin
acceptance
2. Real coin signal (pulse length can be adjusted), transmitted after the
validator received the machine's release signal and the coin passed
the accepted coin sensors
Summary of Contents for NRI G-13.mft Standard
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