NV11 Manual Set – Section 5
16
Copyright © Innovative Technology Ltd 2012
GA963-2
5.4
ccTalk
This section should be read in conjunction with the full ccTalk specification, which can
be downloaded from the internet (www.cctalk.org).
ccTalk is a serial communications protocol in widespread use throughout the money
transaction industry. Peripherals such as coin acceptors, note validators and hoppers
found in a diverse range of automatic payment equipment use ccTalk to communicate
with the host controller.
The protocol uses an asynchronous transfer of character frames in a similar manner to
RS232. The main difference is that it uses a single two-way communication data line
for half-duplex communication rather than separate transmit and receives lines. It
operates at TTL voltages and is ‘multi-drop’ (peripherals can be connected to a
common bus and are logically separated by a device address) - each peripheral on the
ccTalk bus must have a unique address.
Each communication sequence (a command or request for information) consists of 2
message packets structured in one of the formats detailed below. The first packet will
go from the master device to the slave device and then a reply will be sent from the
slave device to the master device.
Commands can have 3 primary formats:
8 Bit Checksum – No Encryption
16 Bit CRC – No Encryption
16 Bit CRC – BNV Encryption
As it is possible to use the ccTalk protocol without encryption, suitable physical
security should be employed to protect the ccTalk bus.
Information
200 ms command spacing
When communicating with the NV11 validator, Read
Buffered Bill events (command 159) should be sent
at least
200 ms apart.
Summary of Contents for NV11
Page 1: ...NV11 MANUAL SET...
Page 2: ...NV11 MANUAL SET INTRODUCTION...
Page 10: ...NV11 MANUAL SET QUICK START AND CONFIGURATION GUIDE SECTION 1...
Page 27: ...NV11 MANUAL SET FIELD SERVICE MANUAL SECTION 2...
Page 49: ...NV11 MANUAL SET ITL SOFTWARE SUPPORT GUIDE SECTION 3...
Page 57: ...NV11 Manual Set Section 3 9 Copyright Innovative Technology Ltd 2012 GA963 2...
Page 74: ...NV11 Manual Set Section 3 26 Copyright Innovative Technology Ltd 2012 GA963 2...
Page 78: ...NV11 Manual Set Section 3 30 Copyright Innovative Technology Ltd 2012 GA963 2...
Page 92: ...NV11 MANUAL SET MECHANICAL AND ELECTRICAL MANUAL SECTION 4...
Page 121: ...NV11 Manual Set Section 4 30 Copyright Innovative Technology Ltd 2012 GA963 2...
Page 131: ...NV11 Manual Set Section 4 40 Copyright Innovative Technology Ltd 2012 GA963 2 Cashbox Options...
Page 134: ...NV11 MANUAL SET SOFTWARE IMPLEMENTATION GUIDE SECTION 5...
Page 157: ...NV11 MANUAL SET TECHNICAL APPENDICES SECTION 6...