| Basic Functions | Receive and transmit 1 channel STM-16 optical signal. |
| Optical Interface Specifications | Supports L-16.2, L-16.2Je, V-16.2Je (plus BA), and U-16.2Je (plus BA and PA) optical interfaces, of which the characteristics of the L-16.2 optical interface are in accordance with the recommendations of ITU-T G.957 and ITU-T G.692, and the optical interfaces of L-16.2Je, V-16.2Je (plus BA), and U-16.2Je (plus BA and PA) are Huawei customized standards, and the U-16.2Je is compatible with U-16.2. ) optical interfaces are Huawei customized standards, and U-16.2Je is compatible with U-16.2. Supporting standard wavelength output in accordance with ITU-T G.692 recommendations, the optical interface of U-16.2Je can directly access DWDM (Dense Wavelength Division Multiplexing) equipment. N3SL16 supports DWDM color optical interface, the optical interface adopts LC connector.DWDM optical interface supports 170km and 640km transmission distance.
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| Optical Module Specifications | |
| Service Processing | Support VC-12/VC-3/VC-4 services and VC-4-4c, VC-4-8c, VC-4-16c cascade services. N2SL16 supports AU-3 service processing.
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| Overhead processing | Supports segment overhead processing for STM-16 signals. Supports channel overhead processing (transparent transmission and termination). Supports setting and querying of J0/J1/C2 bytes. Supports 1 channel ECC communication.
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| Alarm and Performance | Provides rich alarm and performance events for easy device management and maintenance. |
| REG Specifications | The N2/N3SL16 supports the setting and querying of the REG operating mode. In REG mode, the veneer is in the regenerative segment loopback mode, and only the regenerative segment overhead is processed.
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| Protection Mode | It supports various protection modes such as 2-fiber multiplexed segment loopback protection, 4-fiber multiplexed segment loopback protection, linear multiplexed segment protection, SNCP protection, SNCMP and SNCTP. Support MSP and SNCP shared optical path protection. Provides 2 sets of Kbyte processing capacity, 1 SL16 board supports up to 2 MSP rings.
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| Maintenance Features | Supports inner loopback and outer loopback functions at the optical port level. N1SL16 supports VC-4 channel inner loopback function; N3SL16 supports channel inner loopback and outer loopback function. Supports soft reset and hard reset, soft reset does not affect the service. Supports the query function of veneer manufacturing information. Support FPGA online loading function. Support smooth upgrade of veneer software. N2SL16 and N3SL16 support TCM function. Support PRBS function, see Availability. Supports one-button data acquisition.
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