SCH2 Technical Manual TSP016.doc Issue 3.0 – January 2005
Money Controls 2005. All rights reserved.
Page 5 of 61
2. Introduction
The Serial Compact Hopper Mk2 or SCH2 is a serially controlled version of the popular
Compact Hopper manufactured by Money Controls and an updated version of the original
‘Serial Compact Hopper’, now known as the ‘Mk1’ version. The serial interface is
ccTalk
, firmly
established as a leading, low-speed, device control protocol in the money-transaction industry.
A key feature of ccTalk is its optimal balance between simplicity and security.
3. Safety
Note
To meet the requirements for EN 60950 the equipment must be installed according to the
following requirements:-
¾
The equipment must be protected by a 3A fuse.
¾
The equipment must be supplied from a SELV limited power source.
¾
The equipment must be installed in an enclosure but positioned so that it is
external to any fire enclosure area within the main enclosure.
4. Mechanical
Description
Each disc contains a number of holes in which the coins are held. The disc is driven via a gear
train, by the motor. As the disc rotates, the coin at the bottom of one of the stacks will make
contact with the ejector fingers. The fingers will move back and, at the same time, the coin will
start to move outwards to the exit slot.
Once the coin reaches the exit slot, the spring loaded ejector fingers will be able to return to
their original position and, in doing so, will push the coin out of the hopper.
An optical coin detector is created by infrared transmitters and photo detectors situated on the
PCB. The infrared light beam is routed across the exit slot via a light guide. When a coin passes
through the exit the light beam will be broken and a coin output signal will be generated.
There are a range of discs, ejector fingers and adjuster plates available to provide optimum
performance for coins within the specified range.
Summary of Contents for SCH2
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