Hardware differences between LWC boards on LH WDM devices

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Question:
SSE1LWC and SSEM1LWC are present in technical documents. Do they have any differences?
Answer:
SSEM1LWC is a configuration board and SSE1LWC is a finished board. The two boards can be considered as the same board in most cases, and even SSEM1LWC is regarded as SSE1LWC in communication. However, you need to differentiate them in spare parts application and rectification, because you need to provide the BOM numbers of multiple configuration modules when applying for a configuration board, but you need to provide only one BOM number when applying for a finished board.

Other related questions:
NEs supporting the alarm acknowledgment mechanism on 320G and 1600G devices
Question: If alarms are generated, NEs of earlier versions report the alarms to the NMS only for three consecutive times regardless of whether the NMS receives the alarms or not. In the latest version, NEs establish an alarm acknowledgment mechanism with the NMS. Therefore, when alarms are generated, the NEs continuously report the alarms to the NMS until they receive acknowledgment information from the NMS. For 4.0 and 5.0 platforms, which NEs on 320G and 1600G devices support the alarm acknowledgement mechanism? Answer: On the 4.0 platform, NEs support the alarm acknowledgement mechanisms since 4.08.04.20P03. On the 5.0 platform, NEs support the alarm acknowledgement mechanisms since 5.08.03.10.

Differences of the MUT_LOS and R_LOS alarms on OA boards of WDM devices
Question: On Huawei WDM devices, why some OA boards report the R_LOS alarm whereas some OA boards report the MUT_LOS alarm when they do not receive any light or the receive optical power is excessively low? Analysis: None Answer: When the OA boards (such as WPA, WBA, and WLA) on 320G devices do not receive any optical signals, the R_LOS alarm is reported. When the OA boards (such as OPU, OBU, and OAU) on 1600G, 800G, and 400G devices do not receive any optical signals, the MUT_LOS alarm is reported. Suggestion and conclusion: The R_LOS alarm is used to indicate the loss of input optical signals on a single wavelength of a board such as OTU. The MUT_LOS alarm is used to indicate the loss of multiplexed optical signals on a board such as M40, D40, OAU, OBU, or OPU. It is inaccurate that the R_LOS alarm is reported when OA boards do not receive any optical signals. Therefore, the R_LOS alarm is canceled for new OA boards. When developing new 1600G, 800G, and 400G WDM systems, Huawei adjusts the alarm that is reported when OA boards do not receive any optical signals. To be specific, the OA boards report the MUT_LOS alarm when receiving no optical signals.

Hardware difference between SSE1LWC and SSEM1LWC
SSEM1LWC is a configuration board and SSE1LWC is a finished board. In general, the two boards can be considered as one type.

Differences between software and hardware ACLs
First, software ACLs are executed at the software level, whereas hardware ACLs are executed at the chip level. By default, software ACLs have a hidden deny action. For hardware ACLs, if no rule is specified, forwarding is based on system entries.

Difference between logical fibers on a WDM/OTN device and those on an MSTP/SDH device
Each logical fiber on an SDH device represents a pair of physical fibers and each logical fiber on a WDM device represents one physical fiber.

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