Huawei OSN1500 2500 3500 7500 4-ports STM-1 155M optical interface board SSN2SLQ111 equipped with 4 L-1.1 40km SFP module

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PN: 03050631 Category:
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4xSTM-1 Optical Interface Board(L-1.1,LC)

Apply to Huawei OSN 1500B, OSN 2500, OSN 3500, OSN 7500 to transmit/receive 4xSTM-1 optical signals range at 15-40km.

Supports TCM and AU-3 services, can substituted for SSN1SLQ1A(L-1.1,LC).

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.

Supports the VC-12 services, VC-3 services, and VC-4 services, AU-3 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 to four channels of ECC communication.

Supports the two-fiber ring MSP, four-fiber ring MSP, linear MSP, SNCP, SNCTP, and SNCMP.

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 TCM function.

Supports the press-to-collect function in fault data collection.


SSN2SLQ1(L-1.1,LC) is a 4-ports STM-1 optical interface board, can be used on Huawei OSN1500B, OSN2500, OSN3500, OSN7500. SSN2SLQ1(L-1.1,LC) part number is 03050631, model name is SSN2SLQ111. SSN2SLQ1(L-1.1,LC) come with 4 unit L-1.1 SFP module, transmission distance is 40km. SFP module is swappable to perform different transmission distance.

Tech Specs
Front Panel
The front panel of the SSN2SLQ1(L-1.1,LC) has indicators, interfaces, a bar code, and a laser safety class label.


Valid Slot
OSN 1500B: When the cross-connect board is CXLN: the SSN2SLQ1(L-1.1,LC) can be installed in slots 11–13.

OSN 2500: When the cross-connect boards are CXLN and CXLLN: the SSN2SLQ1(L-1.1,LC)can be installed in slots 5–8 and 11–13.

OSN 3500: When the cross-connect boards are IXCS and SXCA: the SSN2SLQ1(L-1.1,LC)can be installed in slots 1–8 and 11–17.

OSN 7500: The SSN2SLQ1(L-1.1,LC)can be installed in slots 1–8, 11–18 and 26-31.

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 SSN2SLQ1(L-1.1,LC) indicates the type of optical interface.
Board Feature Code Type of Optical Interface
SSN2SLQ111 11 L-1.1
Optical Interface Parameter
Parameter Value
Nominal bit rate 155520 kbit/s
Line code pattern NRZ
Application code L-1.1
Transmission distance (km) 15 to 40
Type of fiber Singlemode LC
Operating wavelength range (nm) 1263 to 1360
Launched optical
power range (dBm)
-5 to 0
Receiver sensitivity (dBm) -34
Minimum overload (dBm) -10
Minimum extinction ratio (dB) 10
Maximum -20 dB spectral width (nm)
Minimum side mode suppression ratio (dB)
Mechanical Specifications
Dimensions (mm) 25.4 (W) x 235.2 (D) x 261.4 (H)
Weight (kg) 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: SLQ1 is available in two functional versions, namely, N1 and N2, The N1SLQ1 is discontinued. The difference as below:

N1 N2
single-fiber bidirectional optical modules Supported Not supported
AU-3 service Not supported supported
inloops and outloops on VC-4 paths Supported Not supported
TCM function Not supported Supported


Q: What the board substitution relation among different versions?

A: Through the board version replacement function, the N3SLQ1 can substitute for the N1SLQ1 and N2SLQ1 at the same line rate.


Q: What is the difference between different function code?


Board Feature Code Optical Interface Transmission Distance
10 S-1.1 15km
11 L-1.1 40km
12 L-1.2 80km
13 Ve-1.2 100km
14 I-1 2km
SSN1SLQ115 15 Ie-1 2km


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

A: Yes, you can, please contact sales team, for available SFP module and cost.


Q: Can I equip different specification SFP module on different port, to perform different transmission distance for each port?

A: Yes, you can, but that not recommended.


Q: Can I use compatible SFP module on SSN2SLQ1(L-1.1,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 SSN2SLQ1(L-1.1,LC) board?

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


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