Part Number:   03053170

12xSTM-1 Optical Interface Board(S-1.1,LC)
Availability:   In Stock

key Feature
  • 12 port STM-1

  • S-1.1 15KM

  • Apply to OSN 1500B, OSN2500, 

    OSN 3500,OSN 7500

What's Included
  • SSN1SLT1(S-1.1,LC) 1PCS

  • eSFP 2~15km module 12PCS

  • 12xSTM-1 Optical Interface Board(S-1.1,LC)

  • Applied to OSN 1500B, OSN 2500, OSN 3500, OSN 7500 to transmit/receive 12*STM-1 optical signals range at 2-15km.

  • 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.

  • 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 twelve channels of ECC communication. 

  • Supports the time synchronization feature and transmission of the time information by using the section overhead bytes.

  • 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 Cause by Cross function.

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

    SSN1SLT1(S-1.1,LC) is a 12 port STM-1 optical interface board, can be used on Huawei OSN1500B, OSN2500, OSN3500, OSN7500. SSN1SLT1(S-1.1,LC) part number is 03053170, model name is SSN1SLT123. SSN1SLT1(S-1.1,LC) come with 12 unit S-1.1 SFP module, transmission distance is 15km. SFP module is swappable to perform different transmission distance.

Tech Specs
Front Panel

The front panel of the SSN1SLT1(S-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 SSN1SLT1(S-1.1,LC) can be installed in slots 11–13.

OSN 2500: When the cross-connect boards are CXLN and CXLLN, The SSN1SLT1(S-1.1,LC) can be installed in any of slots 5–8 and 11–13.

OSN 3500: When the cross-connect boards are IXCS and SXCA, The SSN1SLT1(S-1.1,LC) can be installed in any of slots 5–8 and 11–14. 

OSN 7500: When the cross-connect boards are T1PSXCSA, T1SXCSA and T1IXCSA, The SSN1SLT1(S-1.1,LC) can be installed in any of 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 SSN1SLT1(S-1.1,LC) indicates the type of optical interface.
BoardFeature Code Type of Optical Interface
Optical Interface Parameter
Nominal bit rate155520 kbit/s
Line code patternNRZ
Application codeS-1.1
Transmission distance (km)2 to 15
Type of fiberSingle-mode LC
Operating wavelength range (nm)1261 to 1360
Launched optical
power range (dBm)
-15 to -8
Receiver sensitivity (dBm)-28
Minimum overload (dBm)-8
Minimum extinction ratio (dB)8.2
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)1.3
Q & A

Q: What the difference between different functional version? 

A: The SLT1 is available in one functional version, namely, N1.

Q: What is the difference between different function code?


BoardFeature CodeOptical InterfaceTransmission Distance

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 SSN1SLT1(S-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 SSN1SLT1(S-1.1,LC) board? 

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

Delivery & Payment
Delivery have regular products in stock, and work together with reliable and high efficiency shipment partner, could deliver to our customers worldwide shortly. In normal condition, your cargo would take 3-5 days lead time and inland transportation to your carriers, then takes delivery days as per different delivery method, would be arrived at your destination safely and securely through reliable international carriers. Tracking No. will be provided once delivery out.
There are 3 delivery methods as default selection.
· FCA China Mainland.
Free of charge for FCA China Mainland
· FCA Hong Kong.
Flat rate 150USD for cargo under 100KG. We can delivery to your appointed address in Hong Kong, like your forwarders address.
Please note:
1, Our warehouses and cargoes are not located in Hong Kong, there are logistic and customs commission charges during China to Hong Kong.
2, If your cargo is small dimension, instead of delivery to you Hong Kong carrier, choosing our DHL service to deliver to your country directly is highly recommended.
· CNF.
International shipping methods are by express like DHL/ Fedex/ UPS, DHL is default; or by normal airfreight;

For cargoes under 45kg, DHL is recommended; For cargoes more than 45kg, considering the time-effectiveness, customs clearance convenience, and freight cost, our sales team will provide DHL and normal airfreight cost for your choice.

Please note: 

1, Insurance is not included by default, please tell our sales team if you need a insurance during transportation.

2, DHL is door to door service, if you choose normal airfreight, you should collect the cargo at airport; and if there have no airport at your city, you should also responsible for the inland transportation between airport to your place.

Payment accepts variety payment methods. We will constantly upgrade our payment system and provide the most convenient method for our client. The Customer may make payment by any one of the following methods, and Wire Transfer is the regular method in
Payment Methods:
wire transfer western union alipay paypal jbc American express discover network mastercard visa
Paying with Wire Transfer
You can do from any your local bank. Usually, we will have your payment within 2 to 3 day.
All fee (payer & payee) generated by the bank wire transfer should be bear by client. Otherwise, the fee will be deducted from the payment we receive.
Paying with Paypal
 paypal offers an alternative secure payment method via PayPal. PayPal does not insist you open an account, making payment by Credit or Debit card even easier. It's advised you do create an account to enable the benefits of signing up with PayPal, such as buyer protection and faster checkout next time without the need to enter your card details. Our invoicing and back order systems with PayPal work differently from our other payment methods. Our returns system is slightly different, we can only refund you for the items rather than swap them. When paying through PayPal the total order amount will be paid for immediately at checkout when you commit to buy. The items will then be dispatched when we process the order as quickly as we can. If items are out of stock we will aim to dispatch them as soon as possible after they arrive here. The same applies for any back orders that are created due to out of stock items within a larger order. Any canceled orders will be refunded as quickly as possible. Any returns will always be charged back to your original payment method.
Paying with Western Union
 western union
When you buy some items in, you have the option of paying for them at any participating Western Union location. The Western Union charge that applies to is based on the total amount of your transaction.
All fee (payer & payee) generated by the bank wire transfer should be paid by client.Otherwise, the fee will be deducted from the payment we receive.

Paying with Alipay


Now Alipay is acceptable at, if you have and intend to pay by an Alipay account, please contact with our sales team.

Please send us the T/T payment advice with date and invoice number by using below email or telephone number.
Email to: [email protected]          Call to : +852-3062-3083

All products are vender original products, we provide new equipment for customers, never been used before. Some scratching or copper rust might be seen on the modules, that may caused by carry, inserting in/out from chassis during our in-stock and pre-delivery testing. In normal condition, the scratching and rust are very slightly. When meet with this situation, a picture will send to you first to obtain your confirmation before delivery to you.
Once you bought products from us, we will provide the best post sale service for you. After the shipping out, we will continuously track your cargo until it arrives to your country or region. If there is something wrong during the delivery, we will do our utmost to help you.
Generally, all products provided by, will come with standard vender like 1 year warranty. During the warranty period, will replace any defective Equipment, but the reverse logistics should responsible by buyer, the re-shipment should obey the trade terms of order. If it is unable to locate a suitable replacement, will repair the Equipment. If it is unable to do either, will refund the purchase price to Buyer.
This warranty does not apply to any failure of the Equipment as a result of misuse, abuse, accident, neglect or mishandling, lack of proper maintenance, environmental factors, improper installation or configuration, flood, fire or other natural disasters, physical damage, electrical issues such as lightning, power surges or incorrect electrical voltages, or improper modifications.
This warranty is only valid for the original purchaser of the Equipment (“Buyer”).
But if products fail during warranty time, please contact your sales representative, or email to
[email protected] to verify your problem and enquire solutions for the failed products. If the problem
still can't be fixed by remote support trouble shooting methods i.e. email or phone support, then return procedure
See details when you start the return procedure to return policy.
If there’s any post sale question please e-mail at [email protected] or contact with your sales representative.


Write a review

Note: HTML is not translated!
    Bad           Good



  • SSN1SLT1(S-1.1,LC)
  • SSN1SLT1(S-1.1,LC)
  • SSN1SLT1(S-1.1,LC)