The ISO8583 interface to Zone will be over TCP/IP. The application data will be prefixed by a 2- byte length header field (Binary) indicating the length of the application data to follow.
Zone supports ASCII ISO bitmap representations. ASCII ISO8583 bitmap representation is either 16 or 32 byte representation of the bitmap in Hex.
Message type codes are used to identify the general function of messages, and one Message type code is required in each message. Zone supports the message types shown in the following table for both inbound and outbound messages. The message types in the table are divided according to the ISO8583 standard message classes.
|Authorization Transaction request
|Authorization Transaction response
|Financial Transaction request
|Financial Transaction response
|Reversal Advice Repeat
|Reversal Advice Response
|Network Management Request
|Network Management Request Response