HJD-80型程控用户电话交换机操作手册HJD-80型程控用户电话交换机操作手册.doc

HJD-80 型程控用户电话交换机操作手册 HJD-80 型程控用户电话交换机操作手册目录概述...................................................................... ...................................................................... ............................. 3 概况...................................................................... ...................................................................... ............... 3 容量范围...................................................................... ...................................................................... ....... 3 本结构...................................................................... ...................................................................... ........... 3 打印接口...................................................................... ...................................................................... ....... 3 主要技术性能、技术指标...................................................................... ............................................................... 4 交换制式:模拟空分制...................................................................... ..................................................... 4 通话绳路: 8/16/ ...................................................................... ................................................................. 4 终端条件: ...................................................................... ...................................................................... ...4 中继...................................................................... ...................................................................... ............... 4 信号音...................................................................... ...................................................................... ........... 4 线路条件...................................................................... ...................................................................... ....... 4 传输..................................