Money Controls C120S User manual

C120S Technical Manual TSP093.doc Issue 1.2 – January 2005
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electronic or otherwise, without the written permission of Money Controls Ltd. Money Controls Ltd does not accept
liability for any errors or omissions contained within this document. Money Controls Ltd shall not incur any
penalties arising out of the adherence to, interpretation of, or reliance on, this standard. Money Controls Ltd will
provide full support for this product when used as described within this document. Use in applications not covered
or outside the scope of this document may not be supported. Money Controls Ltd. reserves the right to amend,
improve or change the product referred to within this document or the document itself at any time.
Money Controls 2005. All rights reserved.

C120S Technical Manual TSP093.doc Issue 1.2 – January 2005
Money Controls 2005. All rights reserved.
Page 2 of 15
Contents
1. Diary Of Changes .......................................................................................................................................... 3
2. Introduction.................................................................................................................................................... 4
2.1. Scope ...................................................................................................................................................... 4
2.2. General.................................................................................................................................................... 4
3. Electrical Specification ................................................................................................................................. 5
3.1. Electrical interface: .................................................................................................................................. 6
3.2. 'Reset' timing & process .......................................................................................................................... 7
4. Mechanical Specification .............................................................................................................................. 8
4.1. External Dimensions / Mechanical Interfaces .......................................................................................... 8
4.2. Orientation:-............................................................................................................................................. 8
4.3. Acceptance Rates.................................................................................................................................... 8
4.4. Accept gate.............................................................................................................................................. 8
4.5. Coin Sizes ............................................................................................................................................... 9
4.6. Wet Coin Handling................................................................................................................................... 9
5. Environmental Specification ...................................................................................................................... 11
5.1. Fluid Ingress .......................................................................................................................................... 11
5.2. EMC....................................................................................................................................................... 11
5.3. Safety .................................................................................................................................................... 11
5.4. Shock, Bump, Vibration & Impact .......................................................................................................... 11
5.5. Time....................................................................................................................................................... 11
6. Software Specification ................................................................................................................................ 12
6.1. ccTalk spec & additional commands...................................................................................................... 12
6.2. ccTalk structure and commands: ........................................................................................................... 12
6.3. Initialisation............................................................................................................................................ 12
6.4. Messages .............................................................................................................................................. 13
6.5. Validation............................................................................................................................................... 13
6.6. The coin download process ................................................................................................................... 13
6.7. Field re-programming ............................................................................................................................ 13
7. User Interface Specification(s) ................................................................................................................... 14
7.1. Electrical ................................................................................................................................................ 14
7.2. Mechanical ............................................................................................................................................ 14
8. Life & Reliability........................................................................................................................................... 14
8.1. Security.................................................................................................................................................. 14
8.2. Self Test and Diagnostics ...................................................................................................................... 14
8.3. Reliability ............................................................................................................................................... 14
8.4. MCBF .................................................................................................................................................... 14
9. Servicing ...................................................................................................................................................... 14
Tables
Table 1: Power Supply ............................................................................................................................................ 5
Table 2: Current Consumption................................................................................................................................. 5
Table 3: C120S Serial Interface............................................................................................................................... 6
Table 4: Coin Sizes ................................................................................................................................................. 9
Table 5: Environmental Ranges ............................................................................................................................ 11
Figures
Figure 1: C120S Serial Connector........................................................................................................................... 6
Figure 2: C120S External Dimensions................................................................................................................... 10

C120S Technical Manual TSP093.doc Issue 1.2 – January 2005
Money Controls 2005. All rights reserved.
Page 3 of 15
1. Diary Of Changes
Issue 1.0................................................................................................................... February 2004
¾1
st Issue
Issue 1.1..........................................................................................................................June 2004
¾Changed footer
Issue 1.2..............................................................................................................27th January 2005
¾Typo’s corrected.

C120S Technical Manual TSP093.doc Issue 1.2 – January 2005
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Page 4 of 15
2. Introduction
2.1. Scope
This document specifies a coin validator, C120S, for use in payphone applications. The
power to operate the payphone is typically derived from the telephone line, requiring the
C120S to consume the minimum power possible.
The C120S is capable of accepting up to 16 different coin types of any denomination. The
coin set data can be remotely downloaded via the payphone controller interface.
The C120S operates over the environmental conditions specified in Section 5.
2.2. General
A coin reject mechanism is provided, which will open the C120S to allow coin jams or foreign
debris to be cleared and fall into the reject chute.
The C120S operates to specification when fitted in an appropriate channel within 3 degrees
to the vertical in any plane.
While the C120S is inactive, it enters a low power mode. A coin entered into the system or a
message sent over the serial interface causes the C120S to power up, validate the coin or
process the message, then return to the low power mode.
If no power is applied to the C120S, any coins inserted are returned to the user via a reject
chute.
Accepted coins are directed to a coin store or cashbox using a solenoid driven gate and
rejected coins to a reject chute.

C120S Technical Manual TSP093.doc Issue 1.2 – January 2005
Money Controls 2005. All rights reserved.
Page 5 of 15
3. Electrical Specification
Table 1: Power Supply
Regulated Supply: 5V DC +/- 5%
Supply rise time: < 100ms to spec
Supply fall time: < 1 second to 400mV or less
Reset Active At all times when supply is out of spec
Table 2: Current Consumption
Note: Idle current is that state where the power is applied, but prior to a coin
being detected at the wakeup sensor. This is typically the condition when the
phone is off hook, or where the telephone has activated the message line.
Idle: < 750µA
Peak: < 80mA
Energy: 36mJ max @ 5.0v
Note:- for some coins, this energy budget may be exceeded. The specified figure will
be achieved for 90% of the coins capable of qualification on this product.

C120S Technical Manual TSP093.doc Issue 1.2 – January 2005
Money Controls 2005. All rights reserved.
Page 6 of 15
3.1. Electrical interface:
External connection is by means of a 10 way (dual row 2x5 way) header on a 0.1” pitch.
Connector recess is polarised for use with industry standard IDC headers and ribbon cable:-
Figure 1: C120S Serial Connector
Table 3: C120S Serial Interface
PIN FUNCTION ACTIVE
1 ccTalk ccTalk serial data line
2 RxD1 * Receive flash data 5V TTL/CMOS.
3 Ready Active low.
4 TxD1 * Transmit flash data 5V TTL/CMOS.
5 Reset Active low when supply is outside spec.
6 CNVSS * Active low for flash program mode.
7 Inhibit ALL Low
8GND 0V
9 Supply +5V
10 GND P Solenoid 0V supply return (order option)
* Flash programming pins – Do not connect to these pins during normal operation.
There is provision to operate with two grounds, one for combined low power validation
circuits [pin 8] and one for the separate solenoid return utilising reserved pin 10 [GND P].
Standard units are supplied with solenoid return and GND connected to pin 8..

C120S Technical Manual TSP093.doc Issue 1.2 – January 2005
Money Controls 2005. All rights reserved.
Page 7 of 15
Ready signal
The Ready Signal is bi-directional. It is used to indicate to the Host controller that there is a
message waiting from the C120S. The C120S will stay powered up until the Host controller
polls and acknowledges the message or a time out occurs. It is also used to wake up the
C120S when the Host controller wishes to send a message to the coin mech.
Inhibit signal
Inhibit all can be used to slow down coin acceptance 'on the fly' giving the Host controller
time to deal with the preceding coin. The inhibit line status is read immediately prior to
operation of the accept gate solenoid. The decision to accept a true coin is made at this
point. A subsequent change in the inhibit line has no effect on the coin just accepted, which
will continue through the defined accept process. Following coins detected by the C120S
while the inhibit status is active will be rejected.
Signal Logic Levels
The logic levels between the C120S and the payphone controller is standard CMOS level,
that is Logic 0 shall be less than 30% of +5V (supply) and Logic 1 shall be greater than 70%
of +5V (supply).
The INHIBIT line is pulled up to +5V (supply) via a 1M-ohm resistor. The READY and
RESET lines are pulled up to +5V (supply) via 100k-ohm resistors. The DATA line is pulled
up to +5V (supply) via a 68k-ohm resistor.
3.2. 'Reset' timing & process
Reset is an active low signal which forces the processor into a reset state for as long as the
reset line is active. Minimum pulse width is 10ms.
Applying power to the coin acceptor triggers an internal power-on-reset (POR) condition
which provides the necessary reset timing without the need for any external signal
conditions. Note that for the POR circuit to function correctly, reset must be connected to the
supply voltage or left unconnected.
The reset line is diode protected and is internally pulled up to the +5V (supply) via a 100k-
ohm resistor.
Note that due to settling time required for the internal sensor oscillators to stabilise, the coin
acceptor requires a minimum period of 400ms to stabilise after the supply voltage has been
applied before it will accept coins.

C120S Technical Manual TSP093.doc Issue 1.2 – January 2005
Money Controls 2005. All rights reserved.
Page 8 of 15
4. Mechanical Specification
4.1. External Dimensions / Mechanical Interfaces
The space envelope, coin entry and exit positions, together with the mounting details are
detailed in Figure 2.
4.2. Orientation:-
The C120S may be orientated at ±3oin any plane from nominal without affecting coin accept
rates.
4.3. Acceptance Rates
The C120S is capable of accepting coins at a rate of two coins per second on “normal” round
coins. Coins entered at faster rates may be rejected due to 2nd close coin errors, which may
jeopardise the 88% coin acceptance rate. Coin acceptance is inhibited following a successful
validation until the Host controller has acknowledged the previous acceptance message, or a
timeout condition has occurred. The timeout is nominally 50ms. A timer will be available to
slow the accept rate further if the system [payphone] demands it. Coins inserted quickly
should be able to be cleared quickly, without a coin jam arising.
In addition to the standard security windows, other window types may be generated which
provide higher security over both standard and extended temperature ranges.
The actual acceptance rates shall be determined on development of each coin set and shall
be defined in the individual coin set specification. The C120S accepts up to 16 different coin
types and the parameters for these are stored within the mech. in a non-volatile memory. It is
possible to download new or amended data from the Host controller or alternative
programming equipment, via the serial link.
4.4. Accept gate
The coin accept gate is operated by a low powered solenoid to minimise energy use. The
default coin path with the solenoid de-energised is to reject the coin.

C120S Technical Manual TSP093.doc Issue 1.2 – January 2005
Money Controls 2005. All rights reserved.
Page 9 of 15
4.5. Coin Sizes
The C120S accepts the following range of coin or token dimensions which is believed to
cover at least 95% of the world's coinage :
Table 4: Coin Sizes
Diameter: 15.0 - 33.0 mm
Thickness: 1.2 - 3.3 mm
Weight: 1.5 grams min.
The coin or token material may be any of the normal alloys that are generally used to
produce coins world wide. Coins may have holes or be non circular providing that they are
capable of rolling uniformly down a ramp at an angle of 15°to the horizontal. Tokens may
have identification grooves.
4.6. Wet Coin Handling
The C120S acceptance rates and coin throughput may be degraded where there is
condensation on the rundown. Any coins, which may become stuck in the rundown due to
moisture can be ejected by activating the coin reject mechanism. Furthermore, the rundown
is profiled with grooves, which reduce the surface tension on the coin, ultimately reducing the
sticking potential of individual wet coins.

C120S Technical Manual TSP093.doc Issue 1.2 – January 2004
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Page 10 of 15
Figure 2: C120S External Dimensions

C120S Technical Manual TSP093.doc Issue 1.2 – January 2005
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5. Environmental Specification
Table 5: Environmental Ranges
Standard Operating Temperature and
Humidity range:
0°C to 60°C
0% to 75% RH non-condensing
Extended Operating Temperature and
Humidity range: **
-25°C to 60°C
0% to 95% RH non-condensing
Storage temperature range: -40°C to 70°C
0% to 95% RH non-condensing
Rate Of Change < 40% per hour
(Recovery time by the acceptor after a temperature step change is 1 hour per 20°C.
Maximum operating rate of change 20°C per hour.)
**Accept rates may fall outside Standard Operating Temperature and Humidity ranges
5.1. Fluid Ingress
The design of the product is such that the passage of liquids entered through the coin entry
port are routed via the reject path and away from sensitive hardware circuits.
The PCB is conformally coated to withstand the presence of moisture and limited fluid
abuse.
5.2. EMC
Product complies with European generic standards EN50081-1 and EN50082-1.
5.3. Safety
Product meets the safety requirements of EN41003 and EN60950
5.4. Shock, Bump, Vibration & Impact
This product complies with:
Packaged vibration:- BS2011: part 2.1 Fdb
Packaged shock:- ISTA - Procedure 1A, Vibration test method A
Packaged drop:- ISTA - Drop test procedure 1A
Packaged compression:- ISTA - Static compression test, Method B
Installed vibration:- IEC 68-2-6, Fc
Installed shock:- IEC 68-2-27, Ea
5.5. Time
– No limited life components fitted

C120S Technical Manual TSP093.doc Issue 1.2 – January 2005
Money Controls 2005. All rights reserved.
Page 12 of 15
6. Software Specification
6.1. ccTalk spec & additional commands
This protocol is a level shifted RS232 asynchronous Non Return to Zero (NRZ) serial
communication protocol, format 4800 baud, no parity bits, 8 data bits and one start and one
stop bit.
The idle state is +5V DC, the active state is 0V DC
6.2. ccTalk structure and commands:
Refer to latest ccTalk manual.
New ccTalk commands for re-programming coins.
Header 96
Sub-header 255: Begin packet upload
Sub-header 254: Upload packet data
Sub-header 253: End packet upload & program
Sub-header 245: Delete all coin windows
All the other C120P commands ( SEE TSP068 for details ) are supported apart from
header 200 (Upload coin data).
6.3. Initialisation
Whenever the Host controller is powered up (e.g. customer starting call) a handshaking
procedure is conducted to determine that the C120S is functioning correctly and that it has
not changed since last operation.
A typical sequence would be:
¾Power applied to coin acceptor
¾Host Controller activates /READY to wake up coin acceptor
¾Host Controller requests serial number
¾Coin acceptor replies with serial number
¾Host Controller deactivates /READY
¾Coin acceptor enters IDLE mode
The Host controller may instigate a data transfer if certain data has changed e.g. the C120S
has been replaced which will comprise a series of messages as below:

C120S Technical Manual TSP093.doc Issue 1.2 – January 2005
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Page 13 of 15
6.4. Messages
The sequence to be followed when the Host Controller wishes to send a message to the coin
acceptor is as follows:
¾/READY signal activated by Host Controller
¾Coin acceptor changes from IDLE to RUN state
¾Host Controller sends message
¾Coin acceptor replies with completion message
¾/READY signal released by Host Controller
¾Coin acceptor adopts IDLE state
Note: The coin acceptor cannot power down while the /READY signal is pulled low.
6.5. Validation
The sequence to be followed when a coin is inserted into the coin acceptor is as follows:
¾Coin detected in coin acceptor
¾Coin acceptor changes from IDLE to RUN state
¾Coin validated and result calculated (true / reject / error)
¾/READY signal activated by coin acceptor
¾Host Controller requests result code (or coin acceptor time-out)
¾Coin acceptor replies with result code
¾/READY signal released by coin acceptor
¾Coin acceptor adopts IDLE state
Note: In the event of a checksum error, the Host Controller can request the result code again
within the ‘credit timer’ period.
6.6. The coin download process
Involves the use of database generated coin data files. The relevant data for the selected
coin or coins is sent by the Host Controller, which may be PC based. This information
includes data necessary for the coin prediction, along with credit code, window position etc.
6.7. Field re-programming
Field reprogramming (Flash) via ccTools (when available)

C120S Technical Manual TSP093.doc Issue 1.2 – January 2005
Money Controls 2005. All rights reserved.
Page 14 of 15
7. User Interface Specification(s)
7.1. Electrical
External connection is by means of a 10 way (dual row 2x5 way) header on a 0.1” pitch.
Connector recess is polarised for use with industry standard IDC headers and ribbon cable.
7.2. Mechanical
Refer to Figure 2.
8. Life & Reliability
8.1. Security
The C120S is resistant to known fraud attempts, including 'coin on a string' or other
common methods of coin manipulation, consistent with achieving very low power operation.
8.2. Self Test and Diagnostics
A self test can be invoked by command from the Host controller.
8.3. Reliability
Life expectancy – service life of 10 years or 1 million coins whichever is the sooner.
8.4. MCBF
Reliability target for a hard fault requiring a service visit exceeds 450,000 coins between
failures. This figure does not include faults caused by abuse or operation outside of the
specification.
9. Servicing
The C120S mountings are such that it may be exchanged or installed rapidly without the need
for adjustment or the use of special tools.
The only routine maintenance required is the cleaning of dirt etc. from the coin pathways. The
C120S opens easily for cleaning without the use of special tools.
Jammed coins or debris stuffed into the unit through the coin entry can be easily cleared.

C120S Technical Manual TSP093.doc Issue 1.2 – January 2005
Money Controls 2005. All rights reserved.
Page 15 of 15
This manual is intended only to assist the reader in the use of this product and
therefore Money Controls shall not be liable for any loss or damage whatsoever
arising form the use of any information or particulars in, or any incorrect use of the
product. Money Controls reserve the right to change product specifications on any
item without prior notice