| Message Type | Function Code | Description | | :--- | :--- | :--- | | | 82 | Sent periodically (Health check/Supervisor status). | | Card Read | 80 | Initiated when a card is inserted or swiped. Contains Track 1/2/3 data. | | PIN Entry | 21 | Contains the encrypted PIN block. | | Function Key | 20 | Sent when a user presses a menu button (e.g., "Withdrawal", "Balance"). | | Amount Entry | 30 | Sent when a user types an amount on the keypad. |
: Detailed definitions for command codes, modifiers, and message fields used in ATM-to-host communications. State Table Management
The (NCR Direct Connect) is the cornerstone technical document for financial institutions, software developers, and systems integrators operating within the NCR ecosystem. As ATMs evolve from simple cash dispensers into complex multi-functional service hubs, this manual serves as the primary blueprint for managing the communication between the self-service terminal and the host network. 1. What is APTRA Advance NDC? aptra advance ndc reference manual
The is the authoritative technical guide for implementing and managing the Advance NDC (NCR Direct Connect) application on self-service terminals. 🏧 Executive Overview
The manual provides guidelines for developing and updating the visual screens shown to customers. | Message Type | Function Code | Description
: Maps physical side-key buttons or touchscreen coordinates to specific language profiles. 5. Troubleshooting with the Reference Manual
: Modern versions support alphanumeric state numbers (Base 36), greatly expanding the possible number of logical states . | | PIN Entry | 21 | Contains the encrypted PIN block
[Card Inserted] ---> [State A: PIN Entry] ---> [State B: Amount Selection] ---> [State C: Host Authorization] Essential State Types
At its heart, the manual defines the syntax of messages exchanged between the ATM and the host.
Customizing the runtime behavior of an Advance NDC terminal requires modifying localized initialization files. The reference manual outlines several critical files: BOOT.CFG
The manual covers several specialized areas essential for developers and systems integrators:
