13
+12VDC-
Pin 1 (Yellow wire) on the
Hard Drive connector.
12 VDC acceptor power.
Communication Ground-
Pin 5 (Black
wire) on the DB-9 connector.
DC communication ground.
TXD Line-
Pin 3 (Green wire) on the
DB-9 connector.
Connected to TXD line from your PC. (PC TXD line)
RXD Line-
Pin 2 (White wire) on the
DB-9 connector.
Connected to RXD line from your PC. (PC RXD line)
MDB Mode of Operation
Note: To enable this mode on the acceptor, make sure the Configuration Card has
been configured for “MDB” mode. Our MDB interface uses the standard MDB
connector (see Below) for communication.
MDB Mode Power and I/O Connections
Pin Location
Pin Description
Pin 1
+34 VDC Power
Pin 2
DC power return
Pin 3
Not used
Pin 4
Master Receive
Pin 5
Master Transmit
Pin 6
Communications Common
Parallel Mode of Operation
Note: To enable this mode on the acceptor, make sure the Configuration Card has been
configured for “Parallel” mode. The Parallel mode is compatible with the Innovative
Technologies™ “Smiley™ bill acceptor.
In this mode, a single output is applied to one of four Vend lines to show which bill has been
accepted. This allows you to have up to four denominations of bills to be accepted. Also provided
in this interface is an Alarm line to indicate an abnormal condition. An Escrow line is also provided
to allow more control over which bill is accepted by the Apex bill acceptor.
This mode can be used in our 12 VDC models as well as our 120 VAC and 24 VAC models.
Interface Operation
The Inhibit line is used to enable the Apex bill acceptor. Pull it low to enable the acceptor, high to
disable. The Alarm output will go low for 100 msec to signal an abnormality or error. A Vend Line
will go low for 100 msec when a particular bill is recognized. Vend Lines 1-4 correspond to US bills
$1, $5, $10 and $20. If the Escrow Line is not held low, the acceptor will accept a bill and send the
appropriate signal via the Vend Line. If the Escrow Line is held low and a bill is inserted, the Apex
bill acceptor will send out a “Credit” signal telling you what the value of the bill is (by toggling the
appropriate Vend Line). If the Escrow Line is not brought high or the Inhibit Line goes high during
a 30-second period, the bill will be rejected. If the user brings the Escrow Line high (and leaves the
Inhibit line low) during the 30 second period, the acceptor will accept the bill and send out a “Vend”
signal on the appropriate Credit Line. The Vend signal will not be issued if the bill jams or a
“Stealing” attempt is seen by the acceptor. In this case, the bill will be rejected and the acceptor
will toggle the Alarm Line.
Parallel Mode Power and I/O Connections (Refer to Figure 1 for Pinouts)
Pin Function & Location
Apex 12VDC Version
Apex 120 VAC or 24 VAC Version
DC Ground-
Pin 4 (Black wire) on the
18-pin
connector.
DC communication ground and
DC power ground.
DC communication ground
+12 VDC-
Pin 11 (Red wire) on the
18-
pin
connector.
12 VDC acceptor power
Do not use this pin for 120 VAC
version.
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