Huawei OSN3500 7500 1-port STM-64 10G optical interface board SSN4SL6405 equipped with 1 Le-64.2 60km SFP module

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PN: 03053220 Category:
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Software compatibility test between active/standby system board, main control board and service board, mother/sub-card; system commissioning test to prevent all software conflicts.

Huawei OSN 3500 System Test Procedure
In this document, we will show you how tests SDH equipment product boards.
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Apply to Huawei OSN 3500, OSN 7500 equipment to transmit and receive 1xSTM-64 optical signals, at 35~60km.

Supports the board version replacement function to substitute for the N1SL64.

Can substitute for SSN1SL64(Le-64.2,LC)/SSN2SL64(Le-64.2,LC).

Supports the detection and query of the information about the optical module.

Supports the ALS function. The optical interface supports the setting of the on/off state of a laser.

Supports the usage and detection of the pluggable XFP optical module.

Supports the VC-12 services, VC-3 services, and VC-4 services.

Supports the transparent transmission and termination of the path overheads.

Supports the setting and query of the J0, J1, J2, and C2 bytes.

Supports one channel of ECC communication.

Supports Two-fiber ring MSP. Four-fiber ring MSP. Linear MSP. SNCP. SNCMP. SNCTP protection schemes.

Supports inloops and outloops at optical interfaces.

Supports the PRBS function in the line direction and Cause by Cross function, detects and reports voltage performance.

Supports the query of the manufacturing information of the board.

Supports the in-service loading of the FPGA.


SSN4SL64 is a 1-port STM-64 optical interface board, can be used on Huawei OSN3500, OSN7500. SSN4SL64(Le-64.2, LC) part number is 03053220, model name is SSN4SL6405.

SSN4SL64(Le-64.2,LC) comes with 1 unit Le-64.2 SFP module, transmission distance is 60km. SFP module is not swappable to perform different transmission distance.

Tech Specs
Front Panel
The front panel of the SSN4SL64(Le-64.2,LC) has indicators, interfaces, a bar code, and a laser safety class label.

Valid Slot
OSN 3500: When cross-connect boards are IXCSA and SXCSA, the SSN4SL64(Le-64.2,LC) can be installed in slots 5-8 and 11-14.
Feature Code
The number code that follows the board name in the bar code is the feature code of the board. The feature code of the SSN4SL64(Le-64.2,LC) indicates the type of optical interface.
Board Feature Code Type of Optical Interface
SSN4SL6405 05 Le-64.2b
Optical Interface Parameter
Parameter Value
Nominal bit rate 9953280 kbit/s
Line code pattern NRZ
Application code V-64.2b
Transmission distance (km) 35 to 60
Type of fiber Single-mode LC
Operating wavelength range (nm) 1530 to 1565
Launched optical power range (dBm) 0 to 4
Receiver sensitivity (dBm) -21
Minimum overload (dBm) -8
Minimum extinction ratio (dB) 8.2
Maximum -20 dB spectral width (nm) 1
Minimum side mode suppression ratio (dB) 30
Mechanical Specifications
Dimensions (mm) 25.4 (W) x 235.2 (D) x 261.4 (H)
Weight (kg) 1.1
Additional information
Weight 3.0 kg
Dimensions 37.5 × 34.0 × 7.5 cm



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Q: What the difference between different functional version?

A: SL64 is available in three functional versions, namely, N1, N2, and N4. The N2SL64 is discontinued. The difference as below:

N1 N2 N4
Board version replacement function Supported Not supported Supported
TCM function or AU-3 services. Not supported Supported Not supported
Pluggable XFP optical modules Not supported Not supported Supported
Detects and reports voltage performance Not supported Not supported Supported
DWDM colored optical interfaces Supported Supported Not supported
CWDM and DWDM colored optical interfaces Not supported Not supported Supported
One-fiber bidirectional optical modules Not supported Not supported Supported
Output of the standard wavelengths Supported Supported Supported


Q: What the board substitution relation among different versions?

A: When the TCM function and AU-3 services are not required, the N1SL64 can substitute for the N2SL64.

The N4SL64 supports the board version replacement function to substitute for the N1SL64/N2SL64.


Q: What is the difference between different function code?


Board Feature Code Optical Interface Transmission Distance
SSN4SL6401 01 I-64.1 2km
SSN4SL6402 02 S-64.2b 40km
SSN4SL6403 03 P1L1-2D 80km
SSN4SL6404 04 V-64.2b 120km
SSN4SL6405 05 Le-64.2 60km


Q: Can I change SFP module to reach longer transmission distance?

A: No, you can’t, STM-64 not support SFP module change.


Q: Can I use compatible SFP module on SSN4SL64(Le-64.2,LC) board?

A: Yes, you can, the board might generate alarm, but it won’t affect use.


Q: Can I return/exchange board if not compatible with my system?

A: Yes, please tell our sales team your system and main control board version, before your purchase.


Q: The board is new or refurbished?

A: Yes, it is original new, not been used.


Q: Do you sell SFP module separately?

A: Yes, we do.


Q: What is the lead time for SSN4SL6405 board?

A: In normal condition is 5 days, better to confirm with our sales team before your purchase.

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