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Introduction to the IDU
IDU 介绍
1
Introduction to Interfaces
接口介绍
Input power interface
输入电源接口
NM/COM interface
网管 /COM 接口
NE cascading interface
网元级联接口
According to different board configurations, the positions of the actual IDU interfaces may be different from
the positions shown in the figures.
根据单板配置的不同，实际使用的IDU接口和图示接口位置可能会有区别。
2
Introduction to Installation Holes on Both Sides of the Chassis
机盒侧面安装孔位介绍
Before installing the chassis in the ETSI cabinet, adjust the installation holes of the mounting ears according to
the type of the cabinet.
在ETSI机柜中安装机盒时，安装前需由机柜类型调整挂耳安装孔位。
10
11
External clock/time interface
外时钟 / 时 间接口
Ethernet service interface
以太网业务接口
IF interface
中频接口
6
12
ODU power switch
ODU 电源开关
Optical interface
光接口
Synchronous/Asynchronous data
interface
同 / 异 步数据接口
Installation holes in the T63/T66/N66T cabinet
T63/T66/N66T机柜安装孔
Installation holes in the N63E/19-inch cabinet
N63E/19英寸机柜安装孔
Orderwire phone interface
10
公务电话接口
11
External alarm interface
外接告警接口
E1 interface
12
E1 接口
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