Aptra Advance Ndc Developer-s Guide Jun 2026

Map financial institution data to specific hardware configurations. 2. Protocol and Messaging Structure

APTRA Advance NDC acts as a translation and execution layer on the ATM. It bridges the gap between the hardware-level XFS (eXtensions for Financial Services) layer and the central host's messaging protocols. aptra advance ndc developer-s guide

Dictates approval (e.g., 00 ) or specific rejection reasons (e.g., 51 for insufficient funds). aptra advance ndc developer-s guide

Automating the secure distribution of Master Keys from the host via RSA public-key cryptography. aptra advance ndc developer-s guide

Communication between the ATM client and the host relies on structured, bit-mapped, or character-separated message packets sent over secure TCP/IP connections. Messages are divided into three primary categories: A. Host-to-ATM Messages

Sending screen text variations that exceed the allocated byte length in the host download layout.