First of all, I will take you to understand the functions and characteristics of the OSN1500 SDH transmission equipment SSN3SL16 optical interface board: SSN3SL16 is composed of an optoelectronic conversion module, a multiplexing/demultiplexing module, an SDH overhead processing module, a logic control module and a power supply module. Pluggable SFP Optical Module: In the receive direction, it converts the received optical signals into electrical signals. In the transmit direction, it converts the received electrical signals into SDH optical signals and sends them to the optical fiber for transmission. MUX/DEMUX Module: In the receive direction, the DEMUX module demultiplexes the high-speed electrical signals into multiplexed parallel electrical signals and recovers the clock signals. In the transmit direction, the MUX module multiplexes the parallel electrical signals from the SDH overhead processing module into high-speed electrical signals. SDH Overhead Processing Module: The SDH overhead processing module contains the RST, MST, MSA, and HPT sub-modules.The SDH overhead processing module supports the inner and outer loopback functions. RST Sub-module: In the receive direction, the RST sub-module terminates the RSOH: detects the frame positioning bytes A1 and A2, descramble all bytes except the first line byte of RSOH, recover and check the regeneration segment trace byte J0, and check the B1 byte. In transmit direction, RST submodule generates RSOH: write bytes A1, A2, J0, calculate and write B1 byte, scramble all bytes except the first line byte of RSOH. MST submodule: In receive direction, MST submodule terminates MSOH: detects K2 byte, generates MS_AIS alarm or MS_RDI alarm; checks B2 byte, generates B2_SD or B2_EXD alarm; checks B2 byte, generates B2_SD or B2_EXD byte. SD or B2_EXC alarm and sends MS_REI alarm to the opposite end. In the transmit direction, the MST submodule generates the MSOH: writes the bytes E2, D4 to D12, K1, K2, S1, M1, etc., calculates the BIP checksum value and writes the B2 byte. MSA Submodule:In the receive direction, the MSA submodule performs the de-interpolation of the AUG, splits the AUG into N AU-4 structures, detects the AU_LOP and AU_AIS alarms, as well as performs the pointer adjustment. In the transmit direction, the MSA submodule adds the VC-4 to the AU-PTR to generate the AU-4, and then multiplexes the N AU-4s into the AUG through byte interpolation.HPT submodule:In the receive direction, the HPT submodule terminates the POH: checks the B3 byte, and sends the HP_REI alarm to the opposite end; detects the J1 and C2 bytes, and generates the HP_TIM, and HP_SLM alarm (if the VC-4 channel is not loaded, detect the VC-4 channel is not loaded, it also generates HP_UNEQ alarm) and sends HP_RDI alarm to the opposite end. In the transmit direction, the HPT submodule generates the POH: writes the bytes J1, C2, etc., calculates the BIP checksum value and writes the B3 byte.

SSN3SL16 single-board laser safety level is CLASS 1, the maximum output optical power of single-board optical port is less than 10dBm (10mW). Weight: 1.1 kg. Single-board dimensions: 25.4 mm (W) × 235.2 mm (D) × 261.4 mm (H) Supports optical interfaces of L-16.2, L-16.2Je, V-16.2Je (plus BA), and U-16.2Je (plus BA and PA), of which the characteristics of the L-16.2 optical interface comply with ITU-T G.957 and ITU-T G.692 recommendations. The L-16.2Je, V-16.2Je (plus BA), and U-16.2Je (plus BA and PA) optical interfaces are Huawei's customized standards, and the U-16.2Je is compatible with the U-16.2. It supports the VC-12/VC-3/VC-4 services as well as the VC-4-4c, VC-4-8c, and VC-4-16c cascade services. N3SL16 optical interface board is a line single board, which can be used on OptiX OSN series equipment to realize the reception and transmission of STM-16 optical signals. Through this single board, SL16 sends the received optical signals to the cross-side through O/E conversion, while the electrical signals from the cross-side are sent out through E/O conversion.The applications of SDH line single boards are shown in Figure 1, which can form a ring network or a chain network in the system.

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Description of the problem

Users feedback that the SSN3SL16 veneer cannot be added to slot 13 of the OSN1500B device;

The host version is 5.36.18.50;

The network management is T2000V2R6C03SPC005;

Prompts for unsupported board types and error code 38664 cannot be added using the command line;

1. Check and find that the site is using the R1CXL

The crossover capabilities of the CXLLN single board are as follows:

High-order crossover capacity: 15Gbit/s

Low-order crossover capacity: 5Gbit/s

Access capacity: 10Gbit/s

And the crossover capacity of the Q2 and Q3CXL1 single boards we used before is as follows:

High-order crossover capacity: 20Gbit/s

Low-order crossover capacity: 20Gbit/s

Access capacity: 15Gbit/s

The access capacity of R1CXL single board is relatively small, the bandwidth of slot 11 is 622Mbit/s, and the bandwidth of slots 12 to 13 is 1.25Gbit/s, which is not supported by many single boards, so we need to pay attention to it.

Failurecauses

1, verify the host network management support N3SL16, with the command line can not be added, completely exclude the network management reasons, is the database error?

Suggestions and Summary

OSN1500 SSN3SL16, SSN1SLQ4, SSN1SLT1 can not be configured to use R1CXL, in addition to the Ethernet single board can be used with R1CXL, with slots with bandwidth is also reduced accordingly, you can refer to the OSN1500 hardware description manual.

The related technical information and SDH equipment troubleshooting procedures in this chapter are provided by Shenzhen Optical Transmission Network Technology Co., Ltd ( www.opticaltrans.com), please retain! Huawei SDH Optical Transmission Equipment,SDH Transmission Equipment Sales