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Huawei H31-341_V2.5 Exam - Topic 9 Question 17 Discussion

Which of the following statements about the TMB1AST2 board are true?
A) The TM1 optical port must be connected to the TMI1 optical port. and B) The TMB1AST2 board supports the IEEE 1588v2 clock processing and OTDR functions. and C) When the board is working with a DFIU03/DFIU04 board, the OSC optical port must be configured with an optical module that supports the 1511 nm wavelength. and D) When the board is working with a DSFIU01/DSFIU02 board, the TM1/RM1 optical port must be configured with an optical module that supports the 1511 nm wavelength, and the TM2/RM2 optical port must be configured with an optical module that supports the 1491 nm wavelength.

Huawei H31-341_V2.5 Exam - Topic 9 Question 17 Discussion

Actual exam question for Huawei's H31-341_V2.5 exam
Question #: 17
Topic #: 9
[All H31-341_V2.5 Questions]

Which of the following statements about the TMB1AST2 board are true?

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Suggested Answer: A, B, C, D

by Christiane at Jun 21, 2026, 04:08 AM

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Corinne
3 days ago
A seems off to me. The TM1 and TMI1 connection isn’t mandatory.
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Jose
8 days ago
I’m leaning towards D being correct. The wavelength specifics are crucial.
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Adela
13 days ago
I think B is true. The board needs to support IEEE 1588v2.
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Ming
19 days ago
I thought the TM2/RM2 port used a different wavelength, not 1491 nm.
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Ryan
24 days ago
D) is a bit confusing, can anyone clarify that?
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Royce
29 days ago
C) sounds right, but I'm not sure about the 1511 nm requirement.
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Barney
1 month ago
I agree, B) is definitely true about IEEE 1588v2.
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Billye
1 month ago
A) is true, TM1 and TMI1 need to connect.
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Dion
1 month ago
For statement D, I think we practiced a similar question about wavelength configurations, and I remember that 1511 nm was mentioned for the TM1/RM1 port.
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Sharee
2 months ago
Statement C is tricky; I feel like we discussed the DFIU boards, but I can't recall the specifics about the OSC optical port configuration.
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Rosann
2 months ago
I remember studying about the IEEE 1588v2 support in relation to the TMB1AST2 board, so I believe statement B is true.
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Laquita
2 months ago
I think statement A sounds familiar, but I'm not entirely sure if the TM1 and TMI1 ports have to be directly connected.
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