User guide

Special Options 13-7
External I/O
The External I/O option for your Century Series system provides access to 24 I/Os. Century Series
systems use 8-bit I/Os for normal operation of all system components. External I/O lets you add more
accessories such as external devices or sensors.
Connectors for External I/O ports A, B and C are located on the I/O Board, which is under the top cover
of the dispenser at the corner of the Electronics Pan nearest the Light Beacon. Cables from the three
26-pin female D-Sub connectors can be routed over the I/O Board to exit through a slot at the middle rear
of the machine, shown in Figure 13-4. The same three connectors can be reached from underneath the I/O
Board by removing the two side panels.
Item Description
1 Front of Dispensing System
2 Dispensing System Mainboard
3 I/O Board
4 I/O Port C
5 I/O Port B
6 I/O Port A
7 Cable Routing Slot
Figure 13-3 Top View, Cover Removed; External I/O Connectors
2
3
4
5
6
7
1