What are the types of the main control boards of the S12700

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The main control boards of the S12704, S12708 and S12712 are ET1D2MPUA000.

Other related questions:
What are the types of the main control boards of the S7700&S9700
The main control boards of the S7700 include ES0D00MCUA00, ES0D00SRUA00, ES0D00SRUB00,and ES1D2SRUH000. The details are as follows: -The ES0D00MCUA00 is installed on the S7703. -The ES0D00SRUA00, ES0D00SRUB00 and ES1D2SRUH000 are installed on the S7706 and S7712. The main control boards of the S9700 include EH1D2MCUAC00, EH1D2SRUDC00, EH1D2SRUDC01, and EH1D2SRUC000. The details are as follows: -The EH1D2MCUAC00 is installed on the S9703. -The EH1D2SRUDC00, EH1D2SRUDC01 and EH1D2SRUC000 are installed on the S9706 and S9712.

What are the models of the MCU main control board?
The MCU main control board has the following models: ViewPoint 8650C: GCCC ViewPoint 8650: GCCA ViewPoint 8660: GCCB VP9630: ECCC VP9650: ECCA VP9660: ECCB

Can the VP9660 MCU support network port backup?
Network port backup for the VP9660 MCU is described as follows: The GE0 port is a service network port. It is used for signaling and service control processing. 1. The GE0 and GE1 ports are backups for each other. If a network cable is removed from either of the ports, the MCU automatically switches services on that port to the other port. 2. If the communication of a working network port is interrupted due to errors such as a network device fault, the system automatically switches the communication service to the backup network port. 3. The GE1 port is the video firewall network port. The GE0 and GE1 ports are connected to two public network segments to implement traversal between the public and private networks.

How to manually switch the main control board when the U1900 is equipped with two main control boards?
When the U1900 is equipped with two main control boards, run the switch board command in config mode to perform the manual switchover. The U1910, U1911, U1930, and U1960 do not support this command.

Are the main control boards and LPUs hot swappable
All the main control boards and LPUs of the S7700&S9700 are hot swappable. In addition, the fans and power supplies are hot swappable. The ES0D00FSUA00, ES02VSTSA, and EH1D2VS08000 are not hot swappable. NOTE: Before removing the master main control board, perform an active/standby switchover. For details, see the description of main control board replacement in Hardware Installation and Maintenance Guide.

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