Instrumentation Hardware Abstraction Language (IHAL) Handbook

This Instrumentation Hardware Abstraction Language (IHAL) Handbook was prepared by the Data Multiplex Committee of the Telemetry Group (TG), Range Commanders Council (RCC). The IHAL Handbook is a common instrumentation reference for use by organizations that produce IHAL files, by ranges that receive IHAL files, and by vendors who incorporate IHAL files into their telemetry processing systems. The use of this handbook will eliminate inconsistencies and differing interpretations of IHAL files so that all parties will benefit from its usage. This Instrumentation Hardware Abstraction Language (IHAL) Handbook is intended to supplement Chapter 91 of RCC IRIG 106 Telemetry Standards. Practical guidance for properly generating and using IHAL files is provided and examples of some of the more commonly used IHAL features are given. Since there may be multiple ways of describing these features in IHAL, the examples are intended to illustrate best practices. The overall purpose of this handbook is to improve the use of IHAL as a standard by presenting clear guidelines and thereby eliminating any misinterpretations that may exist.