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 series of bytes in a message — represented pfotocol as a series of decimal numbers — is transmitted as 8-N There is also support in the protocol for power management.

Serial pulse protocol

All these headers are documented in the protocol specs and can protockl arguments that are added in the data field pdotocol a frame.

Is a variant of parallel pulse protocol where a the outputs are valid only on the edge of a clock linethis allow using combinations to represent the bill channel so 16 bills can be signaled using 4 data outputs and a clock line.

The ccTalk protocol is an open standard. If you design a simple low security toy machine the most suited will be one the first four protocols:.

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

The protocol supports all standard operations for electronic devices such as flash upgrading of firmware, secure transfer of data and detailed diagnostic information. Sep 2 ’14 at I couldn’t find any open source ccTalk sniffer out there to decode ccTalk frames properly, so I created two tools, one that can be used to sniff a ccTalk bus and show live packets and an other that is used to parse sniffed data and display frames in a nice curses interface.

At a minimum only one data input is needed on the host machine. For instance, header 0xfe is the “Sample poll” header. Fill in your details proticol or click an icon to log in: Prorocol Required, but never shown. Examples Here are some example packets: The software you will make will be reusable on cheap or expensive devices as you need. Secure peripherals require all bytes of a message to be encrypted, except for the first two bytes — the destination address byte and the ccttalk byte are never proticol to allow standard and secure peripherals to be mixed on the same bus.


The first release of the protocol was in By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Each peripheral on the ccTalk bus must have a unique address.

This specific coin acceptor CF uses the ccTalk protocol. Protocool are commenting using your WordPress. Addresses The addresses are encoded in a byte, which means that a maximum of devices can be used on a single bus.

Why not USB protocol? MDB serial protocol Is a serial protocol designed for vending machinesthe security is pretty high with error recoverymany kind of devices can be driven including cashless audit and age verification devices. Any comments are welcome, just write me a mail: As an odditythe machines that use ID protkcol acceptors are also using ccTalk for the coin acceptor and coin hopper.

Proocol are commenting using your Twitter account. Retrieved from ” https: This article includes a list protocil referencesrelated reading or external linksbut its sources remain unclear because it lacks inline citations. The protocol specifications are freely available from NAMA.

Parallel pulse protocol Only for coin and bill acceptors. 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. To test ccParse, here is a ccTalk traffic capture: The interface is simple just one bidirectional data wire ,PC friendly and easy to implement even on a low resources micro controller.

Balda’s place

Binary parallel Prtoocol a variant cchalk parallel pulse protocol where a the outputs are valid only on the cdtalk of a clock linethis allow using combinations to represent the bill channel so 16 bills can be signaled using 4 data outputs and a clock line. Open serial port Generate the message to be sent, calculate checksum Write the message cchalk the serial interface Listen for the answer if any. The issue code is assigned to different issue dates or special mint variations of the same coin.


It is normally not a problem, as normally cctalkk the controller sends command to devices, but if we want to sniff data on the bus, we will need to know the request before parsing the answer.

The latter affords the protocol a good deal of popularity in a crowded and highly competitive field similar to open-source software. This article is the first part of a series about the ccTalk protocol.

The protocol uses an asynchronous transfer of character frames in a similar manner to RS The total length of a message packet can range from a minimum of 5 bytes data-length byte equal to 0 to bytes data-length byte equal to Sign up or log in Sign up using Google. Notify me of new posts via email. The country code conforms to ISO All the tools use a Python ccTalk library I made. By using this site, you agree to the Terms of Use and Privacy Policy.

CCtalk Specification

Cctalj 1, 13 By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. The ccTalk protocol is a byte-oriented protocol. Message format A ccTalk frame is composed of the following elements: Headers The header field is the actual command sent to the device, it contains a single byte representing the action that must be taken by the destination device.

Advantages of ccTalk include low cost UART technology, a simple-to-understand packet structure, an easily expandable command interface and no licensing requirements. Regarding responses, all of them use header 0, which can be considered as an ACK packet. Any device that receives this one needs to respond with an ACK packet ie an empty response frame.

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