# SFP Fiber Optic Transceiver Lightwin LWO-SFP-85-SX, 1.25 Gbit, 850 nm, 550 m, DDM, LC Duplex, Multimode

**URL:** https://aio.lv/en/product--lightwin-lwo-sfp-85-sx--12368268
**Data updated:** 2026-04-21 17:33 (EEST)
**Category:** Network Media Converters
**Manufacturer:** Lightwin
**Manufacturer code:** LWO-SFP-85-SX
**EAN:** 9120117656660
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 24.49 €
**Prices and availability valid until:** 2026-07-24 23:59
**Price without VAT (21%):** 20.24 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lightwin-lwo-sfp-85-sx--12368268

## 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-85-SX is a 1.25 Gbit SFP fiber optic transceiver for multimode networks operating at 850 nm. Supports up to 550 m link distance, LC duplex connector, DDM monitoring and 3.3 V supply. Compliant with RoHS, suitable for switches, media converters and short-range enterprise or data center fiber links.

## Long description

Lightwin LWO-SFP-85-SX is a 1.25 Gbit SFP fiber optic transceiver designed for multimode networks operating at 850 nm. It supports LC duplex connections and digital diagnostics (DDM), and is intended for short-range links such as enterprise networks, data centre interconnects and media converters requiring multimode operation up to 550 m. The module uses a single +3.3 V power supply and complies with laser safety and RoHS standards.
Advantages
The transceiver offers reliable short-range multimode performance with support for up to 550 m over 50/125 µm multimode fiber and an LC duplex interface for easy integration. Built-in digital diagnostics (SFF-8472) enables real-time monitoring of optical parameters, while LVPECL-compatible I/O, low EMI and ESD protection simplify system design and improve operational stability.
Suitable for
Short-range multimode uplinks in enterprise and campus networks
Data centre horizontal and equipment interconnects
Media converters and switches with SFP ports
Industrial networking applications that use multimode fiber
When it may not be suitable
This SFP is intended for multimode links at 850 nm and is not suitable for single-mode long-reach applications or wavelength-division multiplexing systems. It also requires compatible SFP ports and will not work in devices that do not support the SFP form factor or the LVPECL-compatible electrical interface.
Key specifications
Data rate: 1.25 Gbit/s (1250 Mbit/s)
Wavelength: 850 nm
Maximum link distance: up to 550 m on 50/125 µm multimode fiber
Connector: LC duplex
Power supply: +3.3 V
Optical components: VCSEL transmitter and PIN photodiode receiver
Diagnostics: Digital Diagnostic Monitoring (SFF-8472)
Input/Output interface: LVPECL-compatible
Standards and safety: IEC-60825 laser safety compliant; RoHS compatible
How to use
Insert the SFP transceiver into an available SFP port on a switch, media converter or similar device while the host equipment is powered off or following the host vendor's hot-swap procedure. Connect LC duplex multimode fiber patch cords to the module's LC connectors, observing correct TX/RX orientation. Enable or verify DDM monitoring on the host system if real-time optical parameter reporting is required. Ensure the connected fiber type and distance do not exceed the specified limits.
What to consider before purchase
Confirm the host device supports 1.25 Gbit SFP modules and the LVPECL-compatible interface
Verify you will use multimode 50/125 µm fiber and that link distances are within 550 m
Check that LC duplex connectors match your existing cabling
Confirm DDM support is required and supported by your equipment
Usage recommendations
Use the Lightwin LWO-SFP-85-SX in network segments where multimode 850 nm short-reach connectivity is needed; pair with quality 50/125 µm fiber and proper LC duplex patch cords, enable DDM for monitoring, and follow manufacturer guidance on hot-swap procedures and ESD precautions.

## Specifications

| Feature | Value |
|---|---|
| Interface type | SFP |
| SFP transceiver type | Fiber optic |
| Multi-mode fiber (MMF) supported | Yes |

### Network

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

### Ports & interfaces

| Feature | Value |
|---|---|
| Fiber optic connector | LCD |

### Technical details

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

### Performance

| Feature | Value |
|---|---|
| Maximum transfer distance | 550 m |
| Link budget | -19 dB |
| Rx wavelength (max) | 860 nm |
| Rx wavelength (min) | 830 nm |
| Tx wavelength (min) | 830 nm |
| Tx wavelength (max) | 860 nm |

### Power

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

### Certificates

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

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 35 - 95 |
| Operating temperature (T-T) | 0 - 70 |

### Features

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

## FAQ

### How much does the Lightwin LWO-SFP-85-SX 1.25 Gbit SFP 850nm cost, and is it available for purchase?

The price is 24.49 € (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 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-85-SX 1.25 Gbit SFP 850nm?

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/12368268/68487981_large.webp