Introduction

For a complete description of the communications formats and protocol disciplines, the reader is referred to the ISO standard mentioned in the first chapter of this manual.

The HDLC.FRAME protocol is a non-polled, bit oriented protocol. Each unit transmitted over a Level 1 link is termed a frame. A frame consists of the following components:

A number of parameters can be configured to control the operation of ports which make use of the HDLC.FRAME protocol. These parameters are fully described in Chapter 4 “Protocol Specific Configuration”