STA5型用户板软件的设计

摘要

STA5型用户板用于数字程控交换机的用户接口，也可做为各类接入网系统的远端二线模拟接口。本文对该用户板软件设计难点、特点，以及软件的组成部分做以阐述。%STA5 subscriber line is applied to subscriber line interface of programmed control digital switches,and two wire analogy remote interface of access network.This paper discuss the difficulty and feature of the software design of subscriber line ,also analysis the software components of subscriber line .