User guide

用户手册 ET1902L、ET2202L、ET2402L、ET2702L
3
目录
第 1 节：简介 .............................................................................................................................................................................................................................................. 4
第 2 节：安装 .............................................................................................................................................................................................................................................. 5
第 3 节：硬件安装 ...................................................................................................................................................................................................................................... 8
第 4 节：操作 ............................................................................................................................................................................................................................................ 14
第 5 节：技术支持 .................................................................................................................................................................................................................................... 20
第 6 节：安全与维护 ................................................................................................................................................................................................................................. 22
第 7 节：监管信息 .................................................................................................................................................................................................................................... 23
第 8 节：保修信息 .................................................................................................................................................................................................................................... 29