Aristocrat USA MAV500/MKVI Service Manual page 192

Bill Acceptor
Figure 9-6 VFM4 Protocol - Request for Re-transmission Message
If the control system decides to accept the bill, the absence of the
the line is interpreted by the bill acceptor as an acceptance. The bill then
ACCEPT
passes through the transport system to the stacker with the message
In both cases, a second message,
bill acceptor, and the same timing sequence is repeated for the control lines. The
communication session then ends.
A possible third message,
cannot stack a bill) can be sent to the control system, and the timing sequence is
repeated for the message. The communication session then ends.
The control system can request re-transmission of the previous message from the bill
acceptor. Retransmission timing (T4), after a message is received, occurs when the
control system raises the
The bill acceptor sends a replica of the previous message. This process will be
repeated as often as requested by the control system.
9-12
This document contains confidential information which is proprietary to ATI. It may not be disclosed to any unauthorized parties,
and it may not be copied. All rights reserved. © Copyright (ATI) Aristocrat Technologies, Inc. 2002.
or
RETURN VEND
or
STACKER FULL FAILURE
line and keeps it high for a time (T3).
SEND
USA MAV500/MKVI Service Manual
RETURNED
VEND
, is sent to the control system by the
(the bill acceptor and stacker
pulse on
.
28-00486-00