160G×160G Fiberhome Fonsweaver 780B Cross Connect Card XCU S1 Information Processing
Overview
The XCU card provides the clock signal for the equipment and implements higher / lower order cross-connect grooming.
The XCU card has two major functional modules: the clock module and the crossconnect module.
Clock Module Functions
- Processes the S1 information; receives the 8kHz line synchronization timing signal provided by each aggregate card and each tributary card.
- Provides the 38.88MHz synchronization clock, 8MHz overhead clock and 8kHz timing for each aggregate card and each tributary card.
- Provides the status indication signal of the XCU card for each card connected to the XCU card, so as to control the synchronization timing of each card.
Cross-connect module functions
- Provides the 1024×1024 VC-4 higher order cross-connect function.
- Provides the 8064×8064 VC-12 lower order cross-connect function.
- Processes tributary unit pointers for 128 VC-4s.
- Supports the lower order path protection ring for the E1 service with a bandwidth of no less than 40 VC-4s.
- Supports the sub-network connection protection (SNCP) function.
- Terminates the path overheads (B3) of 128 VC-4s .
- Processes the SALM bus output by each aggregate card and tributary card; implements the APS protocol conversion; and performs the MS SPRING function together with aggregate cards and tributary cards.
- Processes the PALM bus output by each aggregate card and tributary card; performs the UPSR function of the system.
Working Principle
The working principle of the XCU card is shown as below.
Mechanical Parameters
| Item | Specification |
| Weight (kg) | 1.5 |
| Dimensions: H×W×D (mm) | 418×35×210 |
Power Consumption
| Item | Specification |
| Power consumption (W) | 60 |
