# SFP BIDI transceiver Lightwin LWO-SFP100-5531-20, 155 Mbps, 1550nm TX / 1310nm RX, 20 km, DDM, LC-Simplex, Singlemode

**URL:** https://aio.lv/en/product--lightwin-lwo-sfp100-5531-20--12368284
**Data updated:** 2026-04-26 20:42 (EEST)
**Category:** Network Media Converters
**Manufacturer:** Lightwin
**Manufacturer code:** LWO-SFP100-5531-20
**EAN:** 9120138892832
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 40.49 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 33.46 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lightwin-lwo-sfp100-5531-20--12368284

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.07.2026 | free |
| Pickup points | 30.07.2026 | 1.89 EUR |
| Courier delivery to door | 30.07.2026 | 4.99 EUR |

## Summary description

Lightwin LWO-SFP100-5531-20 is a BIDI singlemode SFP transceiver offering 155 Mbps data rate with 1550 nm transmit and 1310 nm receive wavelengths. Designed for up to 20 km optical links over LC-simplex connectors, it includes DDM for real-time diagnostics. Suited for telecom and metro networks, media converters and fiber uplinks requiring wavelength-division bidirectional connectivity.

## Long description

Lightwin LWO-SFP100-5531-20 is a bidirectional (BIDI) singlemode SFP transceiver module that supports a 155 Mbps data rate with a 1550 nm transmit wavelength and a 1310 nm receive wavelength. The module is designed for point-to-point fiber links up to 20 km using an LC-simplex connector and provides Digital Diagnostic Monitoring (DDM) for real-time status of optical parameters. It is intended for telecom, metro networks, media converters and fiber uplink applications where wavelength-division bidirectional connectivity reduces fiber count.
Advantages
The transceiver combines BIDI functionality and singlemode optics to enable two-way communication over a single fiber strand, reducing cabling complexity and installation costs. With support for DDM, network administrators can monitor transmit power, receive power, temperature, supply voltage and laser bias current remotely, which simplifies troubleshooting and maintenance. The LC-simplex interface provides compatibility with standard fiber patch panels and media converters, while the compact SFP form factor allows hot-pluggable installation in compatible equipment.
Suitable for
 Telecommunication and metro network links requiring 155 Mbps throughput.
 Media converters that convert electrical interfaces to singlemode fiber.
 Fiber uplinks and access networks where minimizing fiber count is important.
 Environments that benefit from remote diagnostics via DDM.
When it may not be suitable
This module is optimized for singlemode fiber and is not suitable for multimode fiber systems. It supports a fixed data rate of 155 Mbps, so it is not appropriate for applications that require higher Ethernet speeds such as Gigabit or 10 Gigabit links. Additionally, the wavelengths (1550 nm TX / 1310 nm RX) are specific to BIDI deployment; using the wrong complementary module or mismatched wavelengths will prevent link establishment.
Key specifications
 Data rate: 155 Mbps
 Transmit wavelength: 1550 nm
 Receive wavelength: 1310 nm
 Maximum link distance: up to 20 km over singlemode fiber
 Connector type: LC-Simplex
 Form factor: SFP (hot-pluggable)
 Diagnostic feature: Digital Diagnostic Monitoring (DDM)
 Fiber type: Singlemode
How to use
Install the Lightwin LWO-SFP100-5531-20 into a compatible SFP slot while the host device is powered on or off; the SFP is hot-pluggable but follow your equipment vendor guidelines. Connect the LC-simplex connector to the singlemode fiber link, ensuring the mating cable uses the complementary BIDI module at the remote end (the remote module must use 1310 nm TX / 1550 nm RX). Verify the link and monitor DDM parameters through your switch, media converter or network management system to confirm optical power levels and module status.
What to consider before purchase
 Verify that the host device supports third-party SFP modules and the SFP form factor.
 Confirm singlemode fiber infrastructure and that the remote end uses the complementary BIDI wavelength pairing.
 Ensure 155 Mbps data rate meets the application requirements; this module is not backward/forward compatible with higher-speed interfaces.
 Check that the maximum 20 km range is sufficient for your link budget and account for connector/splice losses.
Usage recommendations
For reliable operation, match the transceiver with a complementary BIDI module at the far end, maintain clean LC connector endfaces, and monitor DDM readings after installation to validate optical margins and detect degradation. Use proper ESD precautions during handling and follow vendor instructions for supported devices.

## FAQ

### How much does the Lightwin LWO-SFP100-5531-20 BIDI SFP 155 Mbps cost, and is it available for purchase?

The price is 40.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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 27.07.2026 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

## Image

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