The core of the Advance NDC Reference Manual details the strict syntax and structural formatting required for flawless host-to-ATM communication. Every message payload is parsed into deterministic fields using ASCII characters and hexadecimal control codes. Transaction Request Messages
The ATM does not act randomly; it is always in a specific "State." The Host controls state transitions. aptra advance ndc reference manual
Many networks create custom states or user-defined fields. Always maintain a supplement alongside the standard manual to document these localized variations. The core of the Advance NDC Reference Manual
Identifying whether a failure is due to a dirty magnetic head, a jammed shutter, or an unauthorized skimming device detection. a jammed shutter
The visual layout displayed to the customer during a specific state. Typical State Transition Example