# ISO8583

This document introduces how to pack 8583 data in BankTemplate.

## Wrapper Class

[ISO8583.java](../base/src/main/java/acquire/base/utils/iso8583/ISO8583.java) can pack BCD and ascii data. 

## Configure XML

[8583.xml](../core/src/main/assets/8583.xml) configures the 8583 data format.  It specifies which field is BCD, which  field is ascii, and what format is bitmap field.