Huawei SSN4SLO16 STM-16 optical interface card


3-5 days

Shenzhen Warehouse

SKU: 2015154 Category:


SSN4SLO16 overview

The SLO16 is a line board. The SLO16 can be used on the OptiX OSN equipment series to transmit and receive STM-16 optical signals. The SLO16 converts the received optical signals into electrical signals and sends the electrical signals to the cross-connect side. In addition, the SLO16 converts the electrical signals sent from the cross-connect side into optical signals and transmits the optical signals.

Version Description
Functional versions The SLO16 is available in the following functional versions: N1 and N4.

Interface specifications:

  • The N4SLO16 supports CWDM and DWDM colored optical interfaces, whereas the N1SLO16 does not.
  • The N4SLO16 supports single-fiber bidirectional optical modules, whereas the N1SLO16 does not.


  • The N4SLO16 detects and reports voltage performance, whereas the N1SLO16 does not.
  • The N4SLO16 supports the PRBS function, whereas the N1SLO16 does not.
Relationship between the feature code of the SLO16 and the type of optical interface
Feature Code
Type of Optical Interface
SSN1SLO1610 10 I-16
SSN1SLO1611 11 S-16.1
SSN1SLO1612 12 L-16.1
SSN1SLO1613 13 L-16.2
Specifications of the ports of the SLO16
Port type
I-16 2 km STM-16 two-fiber bidrectional optical interfaces
S-16.1 15 km STM-16 two-fiber bidrectional optical interfaces
L-16.1 40 km STM-16 two-fiber bidrectional optical interfaces
L-16.2 80 km STM-16 two-fiber bidrectional optical interfaces


Function and Feature
Basic functions Transmits and receives 8xSTM-16 optical signals.
Specifications of the optical interface Supports different types of standard optical interfaces, namely, the I-16, S-16.1, L-16.1, and L-16.2. The characteristics of the optical interfaces comply with ITU-T G.957 and ITU-T G.692.

The N4SLO16 supports the CWDM and DWDM colored optical interfaces. The optical interface uses the LC connector. The CWDM optical interface supports the transmission distance of 80 km, and the DWDM optical interface supports the transmission distances of 120 km.

Specifications of the optical module
  • Supports the detection and query of the information about the optical module.
  • Provides the ALS function. The optical interface supports the setting of the on/off state of a laser.
  • Supports the usage and detection of the SFP optical module, which facilitates the maintenance and upgrading of the optical module.
  • The N4SLO16 supports the single-fiber bidirectional optical module, and the single-fiber bidirectional optical module does not support loopbacks as the optical interface by using fiber jumpers.
Service processing Supports the VC-12 services, VC-3 services, VC-4 services, VC-4-4c concatenation services, VC-4-8c concatenation services, and VC-4-16c concatenation services.
Overhead processing
  • Processes the section overheads of the STM-16 signals.
  • Supports the configuration of the D1–D12, E1, and E2 bytes as transparent transmission bytes or into other unused overheads bytes.
  • Supports the transparent transmission and termination of the path overheads.
  • Supports the setting and query of the J0, J1, and C2 bytes.
  • Supports one to eight channels of ECC communication.
Alarms and performance events Reports various alarms and performance events, which facilitates the management and maintenance of the equipment.
Specifications of the REG Does not support the REG.
Protection schemes
  • Supports Two-fiber ring MSP.
  • Supports Four-fiber ring MSP.
  • Supports Linear MSP.
  • Supports SNCP.
  • Supports SNCMP.
  • Supports SNCTP.
  • Supports the fiber-shared virtual trail protection.
  • Supports the fiber-shared MSP and processes 16 sets of K bytes. A single optical interface can process two sets of K bytes. One SLO16 supports a maximum of 16 MSP rings.
Maintenance features
  • Supports inloops and outloops at optical interfaces.
  • Supports inloops and outloops on VC-4 paths.
  • Supports warm resets and cold resets. The warm reset does not affect services.
  • Supports the query of the manufacturing information of the board.
  • Supports the in-service loading of the FPGA.
  • Supports the upgrade of the board software without affecting services.
  • Supports the press-to-collect function in fault data collection.
  • The N4SLO16 supports detection and query of the voltage.
  • Supports the PRBS function. For details, see Availability.


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