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21
2025-11

OSN3500 inter-device optical interface board docking failure

OSN3500 inter-device optical interface board docking failure

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21
2025-11

Failure of the auxiliary interface board of the gateway network element causes abnormal communication between the network administrator and the network element

Failure of the auxiliary interface board of the gateway network element causes abnormal communication between the network administrator and the network element

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21
2025-11

SDH equipment dust net blockage single board service interruption reported HARD_BAD

SDH equipment dust net blockage single board service interruption reported HARD_BAD

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21
2025-11

Differences in alarm signals of PDH interfaces at different rates of SDH transmission equipment

Differences in alarm signals of PDH interfaces at different rates of SDH transmission equipment

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21
2025-11

Low-order overhead bytes in the downstream signal stream of the low-order channel of the SDH transport device

Low-order overhead bytes in the downstream signal stream of the low-order channel of the SDH transport device

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21
2025-11

V5 overhead bytes in the uplink signal flow for low-order communication in SDH transmission equipment

V5 overhead bytes in the uplink signal flow for low-order communication in SDH transmission equipment

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21
2025-11

Introduction to overhead bytes for uplink signal flow in high order channels of SDH transmission equipment

Introduction to overhead bytes for uplink signal flow in high order channels of SDH transmission equipment

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21
2025-11

Introduction to overhead bytes in the downstream signal flow of SDH transmission equipment high-order channels

Introduction to overhead bytes in the downstream signal flow of SDH transmission equipment high-order channels

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21
2025-11

Direction and level of SDH signal flow for Metro1000 transport equipment

Direction and level of SDH signal flow for Metro1000 transport equipment

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21
2025-11

Huawei metro1000 two general alarms

Huawei metro1000 two general alarms

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