Aristocrat USA MAV500/MKVI Service Manual page 316

USA MAV500/MKVI Service Manual
The data transfer rate is 600 baud fixed, 8 bit data, 1 start bit, 1 stop bit and no parity.
This port uses the 16-way Minifit connector P18 on the Interface Board.
The serial communication protocol used with the note acceptor conforms to the Mars
GL5 standard (see the Note Acceptor chapter). The serial protocol is 'one way' in that
the note acceptor sends to the host an ASCII code, depending on the type of note
inserted or the status of the note acceptor. The host enables, disables or accepts the
note via two control lines - ACCEPT ENABLE and SEND.
The connection supports several functions within the note acceptor and a subset of
these signals that is specifically related to the serial GL5 interface. The Note
Acceptor signals are shown below.
Pin I/O
Name
SIN1 Input
SOUT1 Output
CTS1 Input
DSR1 Input
I1 Input
RTS1 Output
DTR1 Output
O1 Output
P12V -
N.C. -
N12V -
GND -
RS232 Interface
This interface provides RS232 communications between the Main Board and an
external interface board. The channel has six I/O signals, including data I/O. The
opto LED drivers on the Main Board are configured to an OFF state when the line is
inactive or not connected to minimise power consumption. This port can be run at a
minimum 9600-baud rate. The RS232 interface signals, as configured on Channel 2,
are shown below.
28-00486-00
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and it may not be copied. All rights reserved. © Copyright (ATI) Aristocrat Technologies, Inc. 2002.
Table 13-3 CCB Pin Names Carrying BNA Signals
Note
Acceptor
Data
-
Out of Service
Interrupt
-
Accept Enable
Send
-
-
-
-
-
Communications Configuration Board
Description
Serial data input in the NRZ format LSB first
Serial data output, Not used
Active low input for note acceptor not
available
Active low input that indicates the activity has
occurred in the note acceptor and a status
message is ready to be transmitted.
not used
Active low output to enable the note acceptor
Active low as a response of the interrupt
signal that allows the note acceptor to
transmit the message
not used
+12volt
No connection
-12volt
Ground
13-7