Money Controls SR3 User manual

SR3 Type2 Technical Manual TSP019.doc Issue 7.0 – Jan 2005
This document is the copyright of Money Controls Ltd and may not be reproduced in part or in total by any means,
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.

SR3 Type2 Technical Manual TSP019 Issue 7.0 – Jan 2005
Money Controls 2005. All rights reserved.
Page 2 of 74
Contents
1. Diary of Changes ........................................................................................................................................... 6
2. Introduction.................................................................................................................................................... 7
3. SR3 Type 2 Modes......................................................................................................................................... 8
4. Mechanical Configurations........................................................................................................................... 9
5. Rear Cover Details....................................................................................................................................... 13
6. Mode 1 .......................................................................................................................................................... 14
6.1 Parallel Interface – Mode 1.................................................................................................................... 14
6.2 Inhibit All ................................................................................................................................................ 14
6.3 Inhibit Coins – Mode 1 ........................................................................................................................... 15
6.3.1 Inhibit Mode 0:- .............................................................................................................................. 15
6.3.2 Inhibit Mode 1:- .............................................................................................................................. 15
6.3.3 Serial Inhibit {Credit-poll} ............................................................................................................... 15
6.4 Coin Accept Outputs – Mode 1.............................................................................................................. 16
6.5 Reject Signal ......................................................................................................................................... 16
7. Mode 2 .......................................................................................................................................................... 17
7.1 Parallel Interface – Mode 2.................................................................................................................... 17
7.2 Inhibit All ................................................................................................................................................ 17
7.3 Inhibit Coins – Mode 2 ........................................................................................................................... 18
7.3.1 Inhibit Mode 0:- .............................................................................................................................. 18
7.3.2 Inhibit Mode 1:- .............................................................................................................................. 18
7.3.3 Serial Inhibit {Credit-poll} ............................................................................................................... 18
7.4 Coin Accept Outputs / Inhibits 1 to 6 – Mode 2...................................................................................... 19
7.5 Reject Signal ......................................................................................................................................... 19
8. Mode 3 (Totaliser)........................................................................................................................................ 20
8.1 Parallel Interface – Mode 3.................................................................................................................... 20
8.2 Inhibit All ................................................................................................................................................ 20
8.3 Inhibit Coins – Mode 3 ........................................................................................................................... 21
8.4 Totaliser – (Mode 3 ONLY).................................................................................................................... 21
8.5 Counter Output ...................................................................................................................................... 22
8.6 Credit Output ......................................................................................................................................... 22
8.7 Game Price............................................................................................................................................ 23
8.8 Bonus Selection..................................................................................................................................... 23
8.9 Credit / Counter Pulse Selection............................................................................................................ 24
8.10 Totaliser Example.................................................................................................................................. 24
9. Mode 5 .......................................................................................................................................................... 25
9.1 Parallel Interface – Mode 5.................................................................................................................... 25
10. Mode 6 ...................................................................................................................................................... 26
10.1 Parallel Interface – Mode 6.................................................................................................................... 26
10.2 Inhibit All ................................................................................................................................................ 26
10.3 Inhibit Coins – Mode 6 ........................................................................................................................... 27
10.4 Totaliser (Mode 6 ONLY)....................................................................................................................... 27
10.5 Counter Output ...................................................................................................................................... 28
10.6 Credit Output ......................................................................................................................................... 28
10.7 Game Price............................................................................................................................................ 29
10.8 Bonus Selection..................................................................................................................................... 29
10.9 Totaliser Examples ................................................................................................................................ 30
10.10 Alarm – (Mode 6 ONLY) .................................................................................................................... 31
10.11 Sorter Option – (Mode 6) ................................................................................................................... 32
10.11.1 Sorter Mode 1 ............................................................................................................................ 32
10.11.2 Sorter Output (Mode 6) .............................................................................................................. 32
10.12 TK Replication (Mode 6 ONLY) ......................................................................................................... 33
11. Mode 7 ...................................................................................................................................................... 34
11.1 Mode 7 (Std Mode) ................................................................................................................................ 34
11.2 Parallel Interface – Mode 7 (Stepper Mode) .......................................................................................... 35
11.3 Inhibit All ................................................................................................................................................ 35
11.4 Inhibit Coins – Mode 7 ........................................................................................................................... 36
11.5 Price Outputs......................................................................................................................................... 36
11.6 Stepper Mode Operation ....................................................................................................................... 37
11.6.1 Two Price Stepper ......................................................................................................................... 37
11.6.2 Multiple Sales – Type 1 ................................................................................................................. 37
11.6.3 Multiple Sales – Type 2 ................................................................................................................. 37

SR3 Type2 Technical Manual TSP019 Issue 7.0 – Jan 2005
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12. Mode 8 (Totaliser).................................................................................................................................... 38
12.1 Parallel Interface – Mode 8.................................................................................................................... 38
12.2 Inhibit All ................................................................................................................................................ 38
12.3 Inhibit Coins – Mode 8 ........................................................................................................................... 39
12.4 Totaliser – (Mode 8 ONLY).................................................................................................................... 40
12.5 Counter Output ...................................................................................................................................... 40
12.6 Credit Output ......................................................................................................................................... 41
12.7 Game Price............................................................................................................................................ 41
12.8 Bonus Selection..................................................................................................................................... 42
12.8.1 Bonus Examples............................................................................................................................ 43
13. Mode 9 ...................................................................................................................................................... 44
14. Mode 10 .................................................................................................................................................... 45
15. Mode 14 .................................................................................................................................................... 46
15.1 Parallel Interface – Mode 14.................................................................................................................. 46
15.2 Inhibit All ................................................................................................................................................ 46
15.3 Inhibit Coins – Mode 14 ......................................................................................................................... 46
15.4 Sorter Option – (Mode 14) ..................................................................................................................... 47
15.4.1 Sorter Mode 1 ................................................................................................................................ 47
15.4.2 Sorter Output (Mode 14)................................................................................................................ 47
16. Mode 15 .................................................................................................................................................... 51
16.1 Parallel Interface – Mode 15.................................................................................................................. 51
16.2 Inhibit All ................................................................................................................................................ 51
16.3 Inhibit Coins – Mode 15 ......................................................................................................................... 51
16.4 Sorter Option – (Mode 15) ..................................................................................................................... 52
16.4.1 Sorter Mode 1 ................................................................................................................................ 52
16.4.2 Sorter Output (Mode 15)................................................................................................................ 52
17. Credit Codes (NOT Modes 3, 6, 7-7, 8, 14 or 15) .................................................................................... 55
17.1 Standard Parallel Credit Codes ............................................................................................................. 55
17.2 Default 12 Coin Mode Credit Codes ...................................................................................................... 55
18. Debug Features ....................................................................................................................................... 56
19. MechToolTM - 6 Way DIL Switch Options. (NOT Modes 3,8,14 &15) ..................................................... 56
20. Bank Select (NOT Modes 14 & 15) ......................................................................................................... 57
20.1 Both Banks ON...................................................................................................................................... 57
20.2 Bank 1 ON Bank 2 OFF......................................................................................................................... 57
20.3 Bank 1 OFF Bank 2 ON......................................................................................................................... 57
21. Teach and Run™ Option (NOT Modes 3, 8, 14 & 15) ............................................................................. 57
22. Adjustable Coin Security (NOT Modes 3, 8, 14 & 15) ............................................................................ 57
23. Alarms (NOT Modes 3, 6, 7-7, 8, 14 or 15)............................................................................................... 57
24. Diagnostics (power-up)........................................................................................................................... 58
25. Sorter Option (NOT Modes 6, 7, 14 or 15)............................................................................................... 58
25.1 Sorter Mode 1 (default).......................................................................................................................... 58
25.2 Sorter Mode 2........................................................................................................................................ 58
25.3 Sorter Mode 3........................................................................................................................................ 58
26. Sorter Drivers (NOT Modes 6, 7, 14 & 15)............................................................................................... 59
26.1 Sorter Drive Circuit ................................................................................................................................ 59
26.1.1 Theory of operation........................................................................................................................ 59
26.2 Sorter Drive Examples........................................................................................................................... 60
26.3 Sort Outputs v Sorter Paths................................................................................................................... 60
27. Coin Dimensions ..................................................................................................................................... 61
28. Label Details Explained........................................................................................................................... 62
29. Protocol .................................................................................................................................................... 63
29.1 Serial Interface ...................................................................................................................................... 63
30. ccTalk Serial Messages........................................................................................................................... 64
31. ccTalk Interface Circuits ......................................................................................................................... 66
31.1 Circuit 1 – ccTalk Standard Interface..................................................................................................... 66
31.2 Circuit 2 – ccTalk Low Cost Interface .................................................................................................... 67
31.3 Circuit 3 – ccTalk Direct Interface.......................................................................................................... 67
31.4 Circuit 4 – ccTalk PC Interface .............................................................................................................. 68
32. Fault Finding ............................................................................................................................................ 69
33. Service...................................................................................................................................................... 70
34. Electrical Interface Requirements.......................................................................................................... 70

SR3 Type2 Technical Manual TSP019 Issue 7.0 – Jan 2005
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35. Specified EMC Performance................................................................................................................... 71
35.1 Emissions .............................................................................................................................................. 71
35.2 Immunity ................................................................................................................................................ 71
36. Material Flammability Rating .................................................................................................................. 71
37. Appendix A – Available Parallel Interface Looms................................................................................. 72
38. Appendix B – Parallel Interface Pin-outs............................................................................................... 73
Tables
Table 1: SR3 Type2 Rear Cover Details. .............................................................................................................. 13
Table 2: Parallel Interface – Mode 1...................................................................................................................... 14
Table 3: Parallel Interface – Mode 2...................................................................................................................... 17
Table 4: Parallel Interface – Mode 3...................................................................................................................... 20
Table 5: Game Price Selection – Mode 3 .............................................................................................................. 23
Table 6: Bonus Selection – Mode 3....................................................................................................................... 23
Table 7: Timer Selection – Mode 3........................................................................................................................ 24
Table 8: Totaliser Example – Mode 3 .................................................................................................................... 24
Table 9: Parallel Interface – Mode 5...................................................................................................................... 25
Table 10: Parallel Interface – Mode 6.................................................................................................................... 26
Table 11: Counter Output Examples – Mode 6...................................................................................................... 28
Table 12: Game Price Selection – Mode 6 ............................................................................................................ 29
Table 13: Bonus Selection – Mode 6..................................................................................................................... 29
Table 14: Sorter Path Programming – Mode 6 ...................................................................................................... 33
Table 15: 16 Pin Parallel Interface......................................................................................................................... 34
Table 16: Parallel Interface – Mode 7.................................................................................................................... 35
Table 17: Parallel Interface – Mode 8.................................................................................................................... 38
Table 18: Game Price Selection – Mode 8 ............................................................................................................ 41
Table 19: Bonus Selection – Mode 8..................................................................................................................... 42
Table 20: Credit and counter pulses given for different coin insertions ................................................................. 43
Table 21: Parallel Interface – Mode 14.................................................................................................................. 46
Table 22: Sorter Path Programming – Mode 14 .................................................................................................... 48
Table 23: Min / Max Coin Diameters v Coin Path – Mode 14............................................................................ 49
Table 24: Parallel Interface – Mode 15.................................................................................................................. 51
Table 25: Sorter Path Programming – Mode 15 .................................................................................................... 53
Table 26: Min / Max Coin Diameters v Coin Path – Mode 15............................................................................ 53
Table 27: Debug Features ..................................................................................................................................... 56
Table 28: Sort Outputs v Sorter Paths................................................................................................................... 60
Table 29: Supported ccTalk Serial Commands..................................................................................................... 64
Table 30: Supported Error Codes.......................................................................................................................... 65
Table 31: Supported Fault Codes.......................................................................................................................... 65
Table 32: Supported Status Codes........................................................................................................................ 65
Table 33: Power Supply ........................................................................................................................................ 70
Table 34: Current Consumption............................................................................................................................. 70
Table 35: Environmental Ranges .......................................................................................................................... 70
Table 36: Available Parallel Interface Looms......................................................................................................... 72

SR3 Type2 Technical Manual TSP019 Issue 7.0 – Jan 2005
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Figures
Figure 1: Accept and Reject Paths .......................................................................................................................... 9
Figure 2: Front Plate Model Details ....................................................................................................................... 10
Figure 3: Front Plate Cut-out Details ..................................................................................................................... 10
Figure 4: Standard Model Details .......................................................................................................................... 10
Figure 5: Reverse Model Details ........................................................................................................................... 11
Figure 6: Mini Front Plate Dimensions................................................................................................................... 11
Figure 7: Mini Front Plate Cut-out Details.............................................................................................................. 12
Figure 8: SR3 Connector Side............................................................................................................................... 13
Figure 9: SR3 Parallel Connector .......................................................................................................................... 14
Figure 10: Coin Accept Outputs – Mode 1............................................................................................................. 16
Figure 11: Reject Output – Mode 1........................................................................................................................ 16
Figure 12: Coin Accept Outputs / Inhibits 1 to 6 – Mode 2 .................................................................................... 19
Figure 13: Reject Output – Mode 2........................................................................................................................ 19
Figure 14: Counter and Credit Outputs – Mode 3.................................................................................................. 22
Figure 15: Divert Signal Output – Mode 5 ............................................................................................................. 25
Figure 16: Counter and Credit Outputs Cct. – Mode 6 .......................................................................................... 28
Figure 17: Alarm Output Connector – Mode 6 ....................................................................................................... 31
Figure 18: Alarm Output Cct.– Mode 6 .................................................................................................................. 31
Figure 19: Sorter Output Cct. – Mode 6................................................................................................................. 32
Figure 20: Sorter Path Outputs – Mode 6.............................................................................................................. 33
Figure 21: Price 1 and 2 Output Ccts. – Mode 7.................................................................................................... 36
Figure 22: Counter and Credit Outputs – Mode 8.................................................................................................. 41
Figure 23: Sorter Output Cct. – Mode 14............................................................................................................... 47
Figure 24: 4 way Sorter Path Outputs – Mode 14................................................................................................. 48
Figure 25: 3 way In-Line Sorter Path Outputs – Mode 14..................................................................................... 49
Figure 26: 3 way In-Line Sorter Dimensions – Mode 14........................................................................................ 50
Figure 27: Sorter Output Cct. – Mode 15............................................................................................................... 52
Figure 28: 3 way In-Line Sorter Path Outputs – Mode 15...................................................................................... 53
Figure 29: Recommended Routing of Sorter Cable – Mode 15............................................................................ 53
Figure 30: 3 way In-Line Sorter Dimensions – Mode 15........................................................................................ 54
Figure 31: Sort Output Connector Details.............................................................................................................. 59
Figure 32: Sorter Drive Output Circuit ................................................................................................................... 59
Figure 33: Sorter Drive Examples.......................................................................................................................... 60
Figure 34: SR3 Accepted Coin Dimensions Graph................................................................................................ 61
Figure 35: ccTalk Serial Connector....................................................................................................................... 63
Figure 36: Circuit 1, ccTalk Standard Interface..................................................................................................... 66
Figure 37: Circuit 2, ccTalk Low Cost Interface .................................................................................................... 67
Figure 38: Circuit 3, ccTalk Direct Interface.......................................................................................................... 67
Figure 39: Circuit 4, ccTalk PC Interface .............................................................................................................. 68

SR3 Type2 Technical Manual TSP019 Issue 7.0 – Jan 2005
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1. Diary of Changes
Issue 1.0 .............................................................................................................................................................................. November 2001
Issue 2.0 ..............................................................................................................................................................................29th March 2002
¾Applied TMWP v3.0
¾Ammended 17.2 Default Binary Credit Codes
¾All pictures changed to .jpg
¾Section 8.10 changed to Euro’s
¾Label details changed
¾Added section on available interface looms
Issue 3.0 .................................................................................................................................................................................26th April 2002
¾Added Figure 9: SR3 Parallel Connector
¾Added Figure 11: SR3 Parallel Connector
¾Added Figure 14: SR3 Parallel Connector
¾Changed the notation in Table 5: Game Price Selection – Mode 3
¾Changed the notation in Table 7: Timer Selection – Mode 3
Issue 3.1 ....................................................................................................................................................................... 18th November 2002
¾Added mode
¾Amended 1st page disclaimer.
Issue 4.0 ................................................................................................................................................... 10th January 2003
¾Added mode 6 details.
¾Applied TMWP 3.2
¾Changed the ‘high’ voltage of Inhibit All.
¾Corrected the typo’s re:- Reject pin from pin 6 to pin 5.
¾Removed Reference to Figure 14: SR3 Parallel Connector
¾Removed Reference to Figure 11: SR3 Parallel Connector
Issue 5.0 .......................................................................................................................................................... 2nd April 2003
¾Added Mode 7 details.
¾Changed the spares part numbers in Table 36.
¾Added Appendix B – Parallel Interface Pin-outs.
¾Standardised the terminology used in the pin-out tables.
¾Added Mode 8 details.
¾Added reference to Mode 9.
¾Added Mode 10 details.
¾Removed Mode 6 MechToolTM details (now in TSP022).
¾Added warning to section 19.
¾Removed reference to 12V from Figure 39.
Issue 5.1 ...........................................................................................................................................................4th April 2003
¾Changed the default credit codes in section 0to match actual product manufactured.
Issue 5.2 ............................................................................................................................................................7th July 2003
¾Changed Mode 5 pin 5 description in Table 9.
¾Changed Mode 5 pin 5 description in Section 38.
¾Updated section 28 Label Details Explained.
¾Updated section 25 Sorter Option (NOT Modes 6, 7, 14 or 15).
¾Added Table 28: Sort Outputs v Sorter Paths.
Issue 6.0 .....................................................................................................................................................18th August 2003
¾Changed ccTalk®to ccTalk throughout the document.
¾Updated ccTalk commands to match those in TSP072.
¾Added Italian “ITY” ccTalk details.
¾Updated section 23, Alarms.
¾Added Mode 14 and Mode 15 details.
¾Ammended section 35 Specified EMC Performance.
¾Ammended Appendix B – Parallel Interface Pin-outs.
Issue 6.1 .............................................................................................................................................. 17th September 2003
¾Corrected information in
¾Figure 28 and Table 25.
Issue 6.2 ............................................................................................................................................... 16th December 2003
¾Added Figure 26.
Issue 6.4 ...................................................................................................................................................2nd February 2004
¾Added Figure 25 and Figure 30 3 way sorter details.
¾Added Figure 7 MFP Cut-out details.
Issue 6.5 ................................................................................................................................................. 25th February 2004
¾Added Table 23 Mode 14 Sorter v Coin Dimensions
¾Added Table 26 Mode 15 Sorter v Coin Dimensions
Issue 6.6 ......................................................................................................................................................23rd March 2004
¾Added Figure 29: Recommended Routing of Sorter Cable – Mode 15
Issue 6.7 ........................................................................................................................................................ 30th June 2004
¾Changed footer
Issue 7.0.....................................................................................................................13th Jan 2005
¾Improved section 26 “Sorter Drivers”.

SR3 Type2 Technical Manual TSP019 Issue 7.0 – Jan 2005
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2. Introduction
The SR3 series of coin acceptors has been designed to be compatible with the standard 3.5”
mechanical and electronic acceptors currently used throughout the vending, amusement and
leisure industries.
Through the development of Series Resonance Technology, the SR3 incorporates the highest
levels of discrimination and functionality. Each acceptor within the series will accept up to 12
different coins from 15mm – 31mm in diameter.
The SR3 can be programmed on site without the use of coins via a hand held “ccProgrammer”,
or using a Win9x programmer but for total flexibility, if a new coin/token is required, the Teach
and Runfunction can be used (not available on Modes 3, 8, 14 or 15).
The SR3 Type 2 is a development of the Type 1 which is now compatible with the previous
range of C120 acceptors including the C120R, C122, C123 as well as incorporating an in-built
totaliser feature and much more.

SR3 Type2 Technical Manual TSP019 Issue 7.0 – Jan 2005
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3. SR3 Type 2 Modes
¾Mode 1 Enhanced C120.
¾Mode 2 C122 compatible. Each accept line doubles as an Inhibit line.
¾Mode 3 Totaliser interface.
¾Mode 5 C123 compatible. Host controlled sorter.
¾Mode 6 Totaliser output and direct sorter drive.
¾Mode 7 40V Mode 1 or 2 Price Stepper (Italian vending compatible).
¾Mode 8 Accumulator totaliser.
¾Mode 9 To be released.
¾Mode 10 Mode 1 (no sleep – MechTool entry at any time).
¾Mode 14 Italian AWP ccTalk compatible with direct sorter drive.
¾Mode 15 Front Plate version of Mode 14.

SR3 Type2 Technical Manual TSP019 Issue 7.0 – Jan 2005
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4. Mechanical Configurations
Figure 1: Accept and Reject Paths

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Figure 2: Front Plate Model Details
Figure 3: Front Plate Cut-out Details
Figure 4: Standard Model Details

SR3 Type2 Technical Manual TSP019 Issue 7.0 – Jan 2005
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Figure 5: Reverse Model Details
Figure 6: Mini Front Plate Dimensions

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Figure 7: Mini Front Plate Cut-out Details

SR3 Type2 Technical Manual TSP019 Issue 7.0 – Jan 2005
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5. Rear Cover Details
Figure 8: SR3 Connector Side
Table 1: SR3 Type2 Rear Cover Details.
Number Feature / Function
1 Option / Totaliser Switches
2LED
3 Serial Interface – ccTalk (see section 29)
4 Sorter Driver (see section 25)
5 Inhibit and Bank Select Switches
6 Parallel Connector
7 Reject Lever

SR3 Type2 Technical Manual TSP019 Issue 7.0 – Jan 2005
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6. Mode 1
6.1 Parallel Interface – Mode 1
Figure 9: SR3 Parallel Connector
Industry standard interface.
Connector type: 10 pin DIL
Table 2: Parallel Interface – Mode 1
PIN FUNCTION ACTIVE
10VOLTS
2 + SUPPLY
3 Accept 5 Low
4 Accept 6 Low
5 Reject operated Low
6 Inhibit All (Default Accept) High
7 Accept 1 Low
8 Accept 2 Low
9 Accept 3 Low
10 Accept 4 Low
6.2 Inhibit All
When the input on pin 6 on the 10 way connector is high (>1.2 volts), all the coins will be
rejected.
The Inhibit All pin HAS to be low (<1.2 volts) or not connected, in order for those coins not
individually inhibited on the 8 way DIL switch or in EEPROM, determined by the programmed
settings (See Accept and Inhibit Configuration in the MechToolTM Manual TSP022), to be
accepted.
If no coins are individually inhibited and both banks are enabled, then ALL coins will be
accepted.

SR3 Type2 Technical Manual TSP019 Issue 7.0 – Jan 2005
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6.3 Inhibit Coins – Mode 1
A flag setting in EEPROM (selected when the product is ordered), determines how coins are
inhibited. To change this flag on receipt of the product ccProgrammer will be required.
6.3.1 INHIBIT MODE 0:-
Coins are inhibited via MechToolTM (please refer to the SR3 Type2 MechToolTM Manual
TSP022). Inhibit switches 1 to 6 are ignored.
6.3.2 INHIBIT MODE 1:-
Coins are inhibited using the 8 way DIL switch shown below:-
Switches 1 to 6 control the acceptance of programmed coins.
ON = coins inhibited.
OFF = coins accepted.
Switch 1 controls coins 1 and 7,
Switch 2 controls coins 2 and 8,
Switch 3 controls coins 3 and 9,
Switch 4 controls coins 4 and 10,
Switch 5 controls coins 5 and 11,
Switch 6 controls coins 6 and 12.
Based on the above switch settings coins 3, 9, 4 and 10 will be accepted all the others
are inhibited.
Switch 7 enables / disables Bank 1, ON = disable – OFF = enable.
Switch 8 enables / disables Bank 2, ON = disable – OFF = enable.
Note:- The inhibit and Bank select inputs are ANDED. Therefore a coin will only be accepted if
both the relevant bank AND the individual coin is enabled.
6.3.3 SERIAL INHIBIT {CREDIT-POLL}
SERIAL OPERATION ONLY.
As an added security feature, an option can be set by MCL when the product is ordered
[Credit-Poll Set]. If selected, this requires the host machine to poll the SR3 every 1
second.
If the SR3 fails to see a poll within the 1 second time period, ALL the coins will be
inhibited.
When the SR3 receives the next poll all the coins previously enabled, will be re-enabled.

SR3 Type2 Technical Manual TSP019 Issue 7.0 – Jan 2005
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6.4 Coin Accept Outputs – Mode 1
Each coin accept output consists of an open collector NPN transistor. On acceptance of a
true coin the transistor is turned on for a period of 100ms (+/- 20%) to less than 0.7 volts at a
Max. 50mA. The host machine must look for valid credit pulses NOT LESS THAN 50ms. It is
not sufficient to merely detect the edges of credit pulses. This ‘debounce’ will prevent credits
being registered by the host machine as a result of any noise or false credit pulses being
induced on the output lines.
Figure 10: Coin Accept Outputs – Mode 1
6.5 Reject Signal
Each time the Reject Lever is pressed, the gate displacement is detected and an output
signal is sent to pin 5 (reject operated) on the parallel connector.
This output will remain active for as long as the Reject Lever is pressed.
Figure 11: Reject Output – Mode 1

SR3 Type2 Technical Manual TSP019 Issue 7.0 – Jan 2005
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7. Mode 2
7.1 Parallel Interface – Mode 2
C122 standard interface.
Connector type: 10 pin DIL
Table 3: Parallel Interface – Mode 2
PIN FUNCTION ACTIVE
10VOLTS
2 + SUPPLY
3 Accept 5 / Inhibit 5 Low
4 Accept 6 / Inhibit 6 Low
5 Reject operated Low
6 Inhibit All (Default Accept) High
7 Accept 1 / Inhibit 1 Low
8 Accept 2 / Inhibit 2 Low
9 Accept 3 / Inhibit 3 Low
10 Accept 4 / Inhibit 4 Low
7.2 Inhibit All
When the input on pin 6 on the 10 way connector is high (>1.2 volts), all the coins will be
rejected.
The Inhibit All pin HAS to be low (<1.2 volts) or not connected, in order for those coins not
individually inhibited on the 8 way DIL switch or in EEPROM, determined by the programmed
settings (See Accept and Inhibit Configuration in the MechToolTM Manual TSP022), to be
accepted.
If no coins are individually inhibited and both banks are enabled, then ALL coins will be
accepted.

SR3 Type2 Technical Manual TSP019 Issue 7.0 – Jan 2005
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7.3 Inhibit Coins – Mode 2
A flag setting in EEPROM (selected when the product is ordered), determines how coins are
inhibited.
7.3.1 INHIBIT MODE 0:-
NOT AVAILABLE.
7.3.2 INHIBIT MODE 1:-
Coins are inhibited using the 8 way DIL switch shown below or via the accept lines (see
Figure 12):-
NOTE:- Both Inputs have to be the same for a coin to accept. (Accept line high and Inhibit OFF)
Switches 1 to 6 control the acceptance of programmed coins.
ON = coins inhibited.
OFF = coins accepted.
Switch 1 controls coins 1 and 7,
Switch 2 controls coins 2 and 8,
Switch 3 controls coins 3 and 9,
Switch 4 controls coins 4 and 10,
Switch 5 controls coins 5 and 11,
Switch 6 controls coins 6 and 12.
Based on the above switch settings coins 1, 3, 4, 7, 9 and 10 will be accepted all the
others are inhibited.
Switch 7 enables / disables Bank 1, ON = disable – OFF = enable.
Switch 8 enables / disables Bank 2, ON = disable – OFF = enable.
Note:- The inhibit and Bank select inputs are ANDED. Therefore a coin will only be accepted if
both the relevant bank AND the individual coin is enabled.
7.3.3 SERIAL INHIBIT {CREDIT-POLL}
SERIAL OPERATION ONLY.
As an added security feature, an option can be set by MCL when the product is ordered
[Credit-Poll Set]. If selected, this requires the host machine to poll the SR3 every 1
second.
If the SR3 fails to see a poll within the 1 second time period, ALL the coins will be
inhibited.
When the SR3 receives the next poll ALL the coins will be re-enabled.

SR3 Type2 Technical Manual TSP019 Issue 7.0 – Jan 2005
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7.4 Coin Accept Outputs / Inhibits 1 to 6 – Mode 2
Each coin accept output consists of an open collector NPN transistor. On acceptance of a
true coin the transistor is turned on for a period of 100ms (+/- 20%) to less than 0.7 volts at a
Max. 50mA. The host machine must look for valid credit pulses NOT LESS THAN 50ms. It is
not sufficient to merely detect the edges of credit pulses. This ‘debounce’ will prevent credits
being registered by the host machine as a result of any noise or false credit pulses being
induced on the output lines.
As well as being outputs these also double up as inputs. After a coin has been discriminated
– but not accepted – the inhibit lines are read by the microprocessor. If the inhibit
corresponding to the discriminated coin is low (<1.2V) the coin will be rejected. Otherwise
the coin will be accepted.
Note:- This can reduce accept rates of closely following coins of the same denomination. This
is because when the first coins accept line is activated, this then inhibits the second coin.
Figure 12: Coin Accept Outputs / Inhibits 1 to 6 – Mode 2
7.5 Reject Signal
Each time the Reject Lever is pressed, the gate displacement is detected and an output
signal is sent to pin 5 (reject operated) on the parallel connector.
This output will remain active for as long as the Reject Lever is pressed.
Figure 13: Reject Output – Mode 2

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8. Mode 3 (Totaliser)
8.1 Parallel Interface – Mode 3
Connector type: 10 pin DIL
Table 4: Parallel Interface – Mode 3
PIN FUNCTION ACTIVE
1 + SUPPLY
20V
3 Not Used
4 Counter Low
5 Not Used
6Inhibit All
(Default Accept) High
7 Credit Output Low
8 Not Used
9 Not Used
10 Not Used
8.2 Inhibit All
When the input on pin 6 on the 10 way connector is high (>1.2 volts), all the coins will be
rejected.
The Inhibit All pin HAS to be low (<1.2 volts) or not connected in order for those coins not
individually inhibited by the 8 way DIL switches, to be accepted.
If no coins are individually inhibited and both banks are enabled, then ALL coins will be
accepted.
Important Notice:
SR3 MechToolTM FUNCTIONS ARE NOT AVAILABLE IN THIS MODE.