# SFP BIDI transceiver Lightwin LWO-SFP-5531-3, 1.25 Gbit, 1550nm TX / 1310nm RX, 3 km, DDM, LC-Simplex, singlemode

**URL:** https://aio.lv/en/product--lightwin-lwo-sfp-5531-3--12368272
**Data updated:** 2026-04-21 17:33 (EEST)
**Category:** Network Media Converters
**Manufacturer:** Lightwin
**Manufacturer code:** LWO-SFP-5531-3
**EAN:** 9120117656806
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 26.99 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 22.31 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lightwin-lwo-sfp-5531-3--12368272

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

Lightwin LWO-SFP-5531-3 is a fiber optic BiDi SFP transceiver for singlemode links offering 1.25 Gbit/s (1250 Mbit/s) throughput. It transmits at 1550 nm and receives at 1310 nm, supports DDM and uses an LC simplex connector. Designed for up to 3 km nominal reach, 3.3 V power input and RoHS compliant—suitable for metro, access and point-to-point fiber connections.

## Long description

Lightwin LWO-SFP-5531-3 is a BiDi SFP transceiver for singlemode fiber links that supports 1.25 Gbit/s (1250 Mbit/s) data rate. The module transmits at 1550 nm and receives at 1310 nm using an LC simplex connector, supports digital diagnostics monitoring (DDM) and is designed for typical reach up to 3 km with a single +3.3 V power supply. It is RoHS compliant and fits standard SFP ports for metro, access and point-to-point fiber connections.
Advantages
The transceiver offers bidirectional transmission over a single fiber, reducing fiber count and simplifying cabling. LVPECL-compatible input/output interfaces and low EMI design provide stable signal integrity, while integrated ESD protection and compliance with laser safety standard IEC-60825 ensure reliable operation in standard network environments. Support for DDM enables real-time monitoring of optical parameters.
Suitable for
Short to medium singlemode fiber links in metro and access networks
Point-to-point connections where fiber availability is limited
Network equipment with SFP ports requiring 1.25 Gbit/s SFP BiDi modules
Installations needing LC simplex connectors and DDM support
When it may not be suitable
This module is intended for singlemode BiDi use and is not suitable where multi-fiber full-duplex links over separate Tx/Rx fibers are required. It is specified for nominal reach up to 3 km; for longer distances or higher power-margin links, a module with greater optical budget or different wavelength configuration will be necessary.
Key specifications
Data rate: 1.25 Gbit/s (1250 Mbit/s)
Transmit wavelength: 1550 nm
Receive wavelength: 1310 nm
Connector type: LC simplex
Typical reach: up to 3 km on singlemode fiber
Power supply: single +3.3 V
Interface: LVPECL-compatible data I/O
Digital Diagnostics Monitoring (DDM): supported
Standards: IEC-60825 laser safety, SFF-8472 compatible
Environmental compliance: RoHS compatible
How to use
Ensure the host port supports SFP BiDi transceivers and 1.25 Gbit/s operation. Observe ESD precautions and insert the module into an available SFP slot until it clicks. Connect the LC simplex fiber with matching BiDi orientation on the far end (opposite Tx/Rx wavelengths). Power up the host device; the module supports DDM for monitoring optical parameters through the host management interface.
What to consider before purchase
Confirm the host device accepts third-party SFP modules and supports DDM if monitoring is required
Verify the remote transceiver uses the complementary BiDi wavelength pair (1550 nm TX ↔ 1310 nm RX)
Check that 3 km reach meets link loss and margin requirements for your fiber route
Ensure connector type (LC simplex) matches existing cabling or adapters
Usage recommendations
Install in clean, ESD-safe environment, verify fiber polarity and perform link tests after installation; use DDM readings to confirm optical power levels and temperature are within expected ranges.

## 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 | 20000 m |
| Link budget | -22 dB |
| Rx wavelength (max) | 1330 nm |
| Rx wavelength (min) | 1290 nm |
| Tx wavelength (min) | 1530 nm |
| Tx wavelength (max) | 1570 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-5531-3 1.25 Gbit BIDI SFP cost, and is it available for purchase?

The price is 26.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 51 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 23.07.2026 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-5531-3 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/12368272/68487973_large.webp