Board compatibility and substitution

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As technologies advance, some boards of a later version with enhanced functions are developed and related boards of earlier versions gradually end up with manufacture discontinuation. The later-version boards can substitute for the earlier-version boards, with the same functions and operation methods. For example, when a TN12LSX board is faulty, you can use a TN14LSX board to replace it, without the need of modifying the logical board configuration on the NMS. The TN14LSX board functions in the same way as the TN12LSX board.

Other related questions:
Whether the TN13OAU103 board can substitute for the TN12OAU103 board
The TN13OAU103 board can substitute for the TN12OAU103 board.

Whether a TN13OAU103 board can substitute for a TN12OAU103 board
A TN13OAU103 board can substitute for a TN12OAU103 board.

Whether the E2SC2 board can substitute for the E1SC2 board
The E2SC2 board can substitute for the E1SC2 board.

Whether 52SCC boards can be used to substitute for 51SCC and 11SCC boards
For an OSN 6800 whose version is later than 5.51.5.35, the 52SCC board can be used to substitute for the 51SCC board. However, the two types of boards cannot work in active/standby mode for a long time.

Whether a TN53ND2 board can substitute for a TN12ND2 board on an OSN 8800
A TN53ND2 board can substitute for a TN12ND2 board but cannot substitute for a TN11ND2 board.

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