The original ccTalk protocol did not use any kind of encryption. It was thought that the security in a serial interface was so much better than a parallel one that no. The ccTalk protocol is used to transfer information and commands to various money processing device, including coin/bill acceptors and coin. The OSI 7-layer network model is of limited use for a simple control protocol such as cctalk. Whereas the task of writing software for full-blown networking.

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The country code conforms to ISO Advantages of ccTalk include low cost UART technology, a simple-to-understand packet structure, an easily expandable command interface and no licensing requirements. The header field is the actual command sent to the device, it contains a single byte representing the action that must be taken by prrotocol destination device.

Sep 2 ’14 at Can be run over serial to USB converters. It also uses optically insulated RX and TX lines at bauds cctwlk bit data 1 even parity bit and an optional hardware reset line. To reduce cost, for short interconnection distances CPI recommends sending ccTalk data over an prottocol multi-drop open-collector interface: Parallel pulse protocol Only for coin and bill acceptors.

There is no error recoverysome security can be reached by tightening the acceptable pulses width error accepted. Stack Overflow works best with JavaScript enabled.

The use for host machines is free as far as I knowfor slaves a per unit fee must be paid. Proticol you design a simple low security toy machine the most suited will be one the first four protocols:.

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ccTalk – Part 1 : The protocol — Balda’s place

Secure peripherals require all bytes of a message to be encrypted, except for the first two bytes — the destination address byte and the data-length byte are never encrypted to allow standard and secure peripherals to be mixed on the same bus.


This library is able to parse packets as well as generate new ones using few lines of code:. The ccTalk protocol is an open standard. Sign up or log in Sign up using Google. This follows the talk I made at Defcon this year slides here: Learn how your comment data is processed. As an odditythe machines that use ID bill acceptors are also using ccTalk for the coin acceptor and coin hopper. This library is able to parse packets as well as generate new ones using few lines of code: This page was last edited on 16 Septemberat Sign up using Facebook.

Post as a guest Name. To test ccParse, here is a ccTalk traffic capture: Notify me of new comments via email.

This article is the first part of a series about the ccTalk protocol. Some have individual inputs to enable each coin or bill channel. Sign up using Email and Password.

At a minimum only one data input is needed on the host machine.

ccTalk tutorial, a guide to bill/coin acceptor and coin hopper protocols – ccTalk tutorial

Most low price coin and bill acceptors have this protocol available by firmware or dip-switch or other settings. The protocol was developed at a company called Coin Controls hence coin-controls-talk, later called Money Controls and from Crane Payment Solutions on the outskirts of Manchester in north-west England mainly by Engineer Andrew William Barson. All these headers are documented in the protocol specs and can take arguments that are added in the data field of a frame.

This can be problematic on higher value bills or coins, for a Eur bill pulses must be sentthe probability that an error occur is pretty high. Leave a Reply Cancel reply Enter your comment here The address 0 is the broadcast address. Is a proprietary protocol owned by JCM used only for bill acceptors and bill changers.


The specifications can only be obtained from JCM after signing a non disclosure agreement. Longer transfers require a series of message packets.

Now what i want to do is Find the CCTalk Protocol equivalent to this library function, in order for me to interact with the device, without the need to call the function from the library, however im not so sure this is easy or possible hopefully someone here might have a little bit more experience with this. The interface is simple just one bidirectional data wire ,PC friendly and easy to implement even on a low resources micro controller.

Serial pulse protocol

Skip to content ccTalk tutorial. These are the most common protocols usedI have tested more or less all of them: Any device that receives this one needs to respond with an ACK packet ie an empty response frame. The protocol specifications are freely available from NAMA. Peripherals such as the currency detectors for coins and banknotes found in a diverse range of automatic payment equipment such as transportation, ticketing, payphones, amusement machines, and retail cash management use ccTalk to talk to the host controller.

Notify me of new posts via email. InDES encryption was added to certain commands so that it could be made more resilient against attacks on the bus.

You are commenting using your WordPress. Addresses The addresses cctalk encoded in a byte, which means that a maximum of devices can be used on a single bus. By using this site, you agree to the Terms of Use and Privacy Policy. Message format A ccTalk frame is composed of the following elements: By continuing to use this website, you agree to their use. This specific coin acceptor CF uses the ccTalk protocol.