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ccTalk Paylink Lite 2 User Manual

Aardvark Embedded Solutions Ltd.

Issue 1.1

3

rd

August 2018

Page 2

1

Introduction

The Paylink Lite 2 family comprises a set of interface boards, primarily
intended to allow the connection of money handling peripheral equipment to
PCs running a Windows operating system or Linux.

At time of writing, the Paylink Lite 2 family currently comprises the following
boards.



ccTalk Standard



RS232 Standard

Paylink Lite 2 is designed to interface either RS232 money handling
peripherals

or

ccTalk peripherals to a PC.

An MDB interface variant is currently being considered, but is not available.

All variants of the Paylink Lite 2 have onboard circuitry designed to prevent
“hanging” of the PC USB electronics due to noise.

This document serves as the user manual for the ccTalk Paylink Lite 2.

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Содержание Paylink Lite 2

Страница 1: ...Paylink Lite 2 User Manual Author Andy Graham Issue 1 1 Date 3rd August 2018 Copyright Aardvark Embedded Solutions Ltd 2018 All rights reserved ...

Страница 2: ... Linux At time of writing the Paylink Lite 2 family currently comprises the following boards ccTalk Standard RS232 Standard Paylink Lite 2 is designed to interface either RS232 money handling peripherals or ccTalk peripherals to a PC An MDB interface variant is currently being considered but is not available All variants of the Paylink Lite 2 have onboard circuitry designed to prevent hanging of t...

Страница 3: ...t complete issue 1 1 3rd Aug 2012 AJG Altered pin definitions of the 20 pin digital I O connector to match the documentation of other Paylink boards 1 3 Document References The Paylink Lite 2 family of interface boards implement a subset of the full Paylink API This API provides high level device independent control of money handling peripherals and digital I O signals Use of this API means that t...

Страница 4: ...able of Contents 4 3 Board Layout 5 3 1 J0101 Power Connector 6 3 2 J0102 Digital I O Connector 7 3 2 1 Input Signal Operation 8 3 2 2 External LED Driver Operation 8 3 2 3 Output Signal Operation 8 3 3 J0201 USB Connector 8 3 4 J0501 ccTalk Connector 9 3 5 J0501 RS232 Connector 10 3 5 1 Connecting to a 9 Pin Male D Type 10 4 USB Reset and LED Operation 11 4 1 USB Reset Strategy 11 4 2 Onboard LED...

Страница 5: ...scribed in its own section followed by a section describing the onboard LED operation Note that although a power connector is provided most of the electronics on the Paylink Lite 2 board will operate from the USB power supply Thus even though the onboard LED is illuminated this does not necessarily mean that the board is correctly powered Pin 1 Pin 1 Pin 1 Pin 2 Pin 20 J0202 J0201 J0101 J0501 J010...

Страница 6: ...pply to Paylink Lite 2 This 12 Volt supply is primarily used to supply power to the 12 Volt ccTalk peripherals the 12 Volt supply passes through a 3A fuse and is made available at the ccTalk connector See section 3 4 J0501 ccTalk Connector It is also connected to allow simple supply to the digital outputs If neither are in use then there is no need to connect this For RS232 this can be connected t...

Страница 7: ...ribed in the Molex Microfit documentation Pin Signal Name Description 1 12 VF Twelve Volt Fused signals for use with output signals 2 12 VF 3 12 VF 4 12 VF 5 Output 0 Output signal 0 Active Low 6 Output 1 Output signal 1 Active Low 7 Output 2 Output signal 2 Active Low 8 Output 3 Output signal 3 Active Low 9 Pull Up 0 Pull ups to the USB 5V to allow the direct driving of LEDs 10 Pull Up 1 11 Pull ...

Страница 8: ... the Anode of the LED should be connected to an appropriate Pull Up on pins 9 10 11 or 12 and the Cathode of the LED should be connected to the drive output on pins 5 6 7 or 8 3 2 3 Output Signal Operation Each standard output is designed to drive a maximum 100 mA non inductive load 3 3 J0201 USB Connector The connection from the PC to the Paylink Lite 2 board is though a standard Type B connector...

Страница 9: ... pin allocation described in the Molex Microfit documentation Pin Signal Name Description 1 ccTalk Data This is the bidirectional ccTalk data signal 2 12 VF This is the fused twelve volt supply to the ccTalk peripherals 3 Ground This is the ground connection to the twelve Volt peripherals 4 24 VF This is the fused twenty four volt supply to the ccTalk peripherals 5 Ground This is the ground connec...

Страница 10: ...connector is as shown in the diagram to the left Note that this does not match the pin allocation described in the Molex Microfit documentation Pin Signal Name Description from to to from 3 5 1 Connecting to a 9 Pin Male D Type A common connection standard for RS232 peripherals is for the peripheral to be fitted with a 9 way female D Type connector Thus a cable from the Paylink Lite 2 to a male D ...

Страница 11: ...ting these failures the Paylink Lite 2 automatically disconnects itself from the USB bus and reconnects itself a short time later This technique effectively resetting the USB has shown itself to be very effective in fixing any USB link hanging At start of world there is a five minute period where the microcontroller does not check for regular activity If regular activity is detected then no reset ...

Страница 12: ...ocontroller is indicating that the USB traffic is normal The USB device is free to run normally 50 Mark Space Ratio When the LED is illuminated for 50 of the cycle the microcontroller is indicating that the USB traffic has just ceased and that it is attempting to reset the USB bus 10 Mark Space Ratio When the LED is illuminated for 10 of the cycle the microcontroller is indicating that the USB tra...

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