# SFP BiDi Transceiver Lightwin LWO-SFP-3155-3, 1.25 Gbit, 1310nm TX / 1550nm RX, 3 km, DDM, LC-Simplex, Singlemode

**URL:** https://aio.lv/en/product--lightwin-lwo-sfp-3155-3--12368271
**Data updated:** 2026-04-21 17:33 (EEST)
**Category:** Network Media Converters
**Manufacturer:** Lightwin
**Manufacturer code:** LWO-SFP-3155-3
**EAN:** 9120117656790
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 24.99 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 20.65 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lightwin-lwo-sfp-3155-3--12368271

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 22.07.2026 | free |
| Pickup points | 27.07.2026 | 1.99 EUR |
| Courier delivery to door | 27.07.2026 | 4.99 EUR |

## Summary description

Lightwin LWO-SFP-3155-3 is a 1.25 Gbit BiDi fiber optic SFP transceiver for singlemode networks. It transmits at 1310 nm and receives at 1550 nm, supports up to 3 km link distance, DDM monitoring, and an LC-simplex connector. Powered by 3.3 V, RoHS compliant and covered by a 3-year warranty — suited for point-to-point fiber links and network equipment uplinks.

## Long description

Lightwin LWO-SFP-3155-3 is a 1.25 Gbit/s BiDi SFP transceiver designed for singlemode fiber networks. It transmits on 1310 nm and receives on 1550 nm, supports up to 3 km link distance, and uses an LC-simplex connector. The module operates from a single 3.3 V supply and provides Digital Diagnostic Monitoring (DDM) for real-time status monitoring.
Advantages
The transceiver integrates FP lasers and PIN photodetectors to provide reliable bidirectional communication over a single fiber. It features LVPECL-compatible data interfaces, low electromagnetic emissions, and built-in ESD protection. The design complies with laser safety standard IEC-60825 and RoHS requirements, and supports SFF-8472 diagnostics.
Suitable for
Point-to-point fiber links in enterprise or access networks
Uplink ports on switches and media converters
Singlemode networks requiring compact SFP modules and DDM monitoring
When it may not be suitable
This BiDi SFP is intended for singlemode fiber and point-to-point connections up to 3 km; it is not suitable for multimode fiber or longer-haul singlemode links that require higher output power or different wavelengths. It also does not support data rates above 1.25 Gbit/s.
Key specifications
Data rate: 1.25 Gbit/s (1250 Mbit/s)
Wavelengths: 1310 nm transmit / 1550 nm receive
Maximum link distance: up to 3,000 m on singlemode fiber
Connector type: LC-simplex
Power supply: single 3.3 V
Interface compatibility: LVPECL input/output
Diagnostics: Digital Diagnostic Monitoring (DDM) per SFF-8472
Standards: IEC-60825 laser safety; RoHS compliant
How to use
Insert the SFP transceiver into a compatible SFP port on a switch, router, or media converter until it latches. Connect the LC-simplex fiber cable with the appropriate polarity for BiDi operation. Ensure the remote endpoint uses the complementary wavelength pairing (remote transceiver should transmit at 1550 nm and receive at 1310 nm). Monitor link status and diagnostics via the host device using the DDM features.
What to consider before purchase
Network fiber type must be singlemode (SMF)
Required link distance should not exceed 3,000 m
Ensure host device supports 1.25 Gbit/s SFP modules and SFF-8472/ DD Monitoring if required
Usage recommendations
For reliable BiDi links, pair this module with a complementary transceiver at the other end (1550 nm TX / 1310 nm RX), verify connector cleanliness, and use singlemode LC-simplex patch cords. Use the DDM readings to check optical power and temperature during installation and maintenance.

## Specifications

| Feature | Value |
|---|---|
| Interface type | BiDi SFP |
| SFP transceiver type | Fiber optic |
| Single-mode fiber (SMF) supported | Yes |

### Network

| Feature | Value |
|---|---|
| Maximum data transfer rate | 1250 Mbit/s |

### Ports & interfaces

| Feature | Value |
|---|---|
| Fiber optic connector | LC |

### Technical details

| Feature | Value |
|---|---|
| Warranty period | 3 year(s) |

### Performance

| Feature | Value |
|---|---|
| Maximum transfer distance | 3000 m |
| Link budget | -22 dB |
| Rx wavelength (max) | 1570 nm |
| Rx wavelength (min) | 1530 nm |
| Tx wavelength (min) | 1290 nm |
| Tx wavelength (max) | 1330 nm |

### Power

| Feature | Value |
|---|---|
| Input voltage | 3.3 |

### Certificates

| Feature | Value |
|---|---|
| Compliance certificates | RoHS |

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 5 - 95 |
| Operating temperature (T-T) | 0 - 70 |

### Features

| Feature | Value |
|---|---|
| Digital Diagnostics Monitoring (DDM) | Yes |

## FAQ

### How much does the Lightwin LWO-SFP-3155-3 1.25 Gbit BiDi SFP cost, and is it available for purchase?

The price is 24.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 47 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 22.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Lightwin products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Lightwin service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: maximum data transfer rate, maximum transfer distance, fiber optic connector, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for Lightwin LWO-SFP-3155-3 1.25 Gbit BiDi SFP?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/12368271/68487975_large.webp