fiber optic ethernet SDH Huawei OSN7500II DWDM
Short Description:
| Unit | Description |
| Network-side service interface units | |
| TDM mode | SDH interface unit WDM unit Optical amplifier unit and dispersion compensation unit |
| Packet mode | Ethernet interface unit ATM/IMA interface unit CES interface unit |
| Core units | |
| TDM mode | SDH cross-connect matrix unit |
| Packet mode | Packet switching unit |
| User-side service interface units | |
| TDM mode | SDH interface unit PDH interface unit Ethernet interface unit Video interface unit |
| Packet mode | Ethernet interface unit ATM/IMA interface unit CES interface unit |
| Common units | Overhead processing unit Synchronous timing unit Power interface unit Auxiliary interface unit System control and communication unit |
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