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header-product SFP BiDi Transceiver Lightwin LWO-SFP-5531-20 — 1.25 Gbit, 1550nm TX / 1310nm RX, 20 km, DDM, LC-Simplex, Singlemode
35.49 €

SFP BiDi Transceiver Lightwin LWO-SFP-5531-20 — 1.25 Gbit, 1550nm TX / 1310nm RX, 20 km, DDM, LC-Simplex, Singlemode

Lightwin LWO-SFP-5531-20 1.25 Gbit BiDi SFP Photo 1
Lightwin LWO-SFP-5531-20 1.25 Gbit BiDi SFP Photo 2
Lightwin LWO-SFP-5531-20 1.25 Gbit BiDi SFP Photo 1
Lightwin LWO-SFP-5531-20 1.25 Gbit BiDi SFP Photo 2
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SFP BiDi Transceiver Lightwin LWO-SFP-5531-20 — 1.25 Gbit, 1550nm TX / 1310nm RX, 20 km, DDM, LC-Simplex, Singlemode

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SFP BiDi Transceiver Lightwin LWO-SFP-5531-20 — 1.25 Gbit, 1550nm TX / 1310nm RX, 20 km, DDM, LC-Simplex, Singlemode

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Short description

Lightwin LWO-SFP-5531-20 is a 1.25 Gbit singlemode BiDi SFP fiber optic transceiver operating with 1550 nm transmit and 1310 nm receive wavelengths. Designed for up to 20 km links, it features LC-simplex connector, DDM support and 3.3 V power supply, suitable for long-distance Ethernet and telecom links requiring duplex data over single fiber.
Available for order: 95 pcs.
Warranty: 2 Years
SKU: 12368275
Manufacturer: Lightwin
free shipment

Cheapest delivery:

Venipak Locker LV

Pick-up points

Venipak Locker LV

Cost

1.89 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
24.07.2026 {{selectedOffer.officeDeliveryString}}
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29.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 1.00 kg)
Parcel couriers
Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Venipak Pickup LV / Latvijas Pasts nodaļa
29.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
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Product information

Description

Lightwin LWO-SFP-5531-20 is a 1.25 Gbit singlemode BiDi SFP transceiver that transmits at 1550 nm and receives at 1310 nm over a single fiber. The module uses an LC-simplex connector, supports DDM (digital diagnostic monitoring), and is designed for links up to 20 km with a single 3.3 V power supply. It is intended for Ethernet and telecom applications where duplex data must be carried over one fiber.

Advantages

The transceiver provides bidirectional communication over a single strand of singlemode fiber, reducing fiber cabling needs. It supports a standard 1.25 Gbit/s data rate with DDM for real-time monitoring of module parameters. The SFP package with LC connector and low-power 3.3 V operation make it compatible with many switches and media converters. Compliance with RoHS and IEC-60825 laser safety, plus SFF-8472 compatibility, ensures standard interoperability and safety.

Suitable for

  • Point-to-point Ethernet links up to 20 km on singlemode fiber
  • Telecom and access networks requiring bidirectional data on a single fiber
  • Media converters and SFP-capable switches supporting 1.25 Gbit/s
  • Deployments needing LC-simplex connectors and DDM diagnostics

When it may not be suitable

This BiDi SFP is not suitable for multimode fiber installations or applications that require wavelengths other than 1550 nm transmit / 1310 nm receive. It does not support data rates above 1.25 Gbit/s, so it is not appropriate for 10 Gbit or higher links.

Key specifications

  • Data rate: 1.25 Gbit/s (1250 Mbit/s)
  • Transmit wavelength: 1550 nm
  • Receive wavelength: 1310 nm
  • Maximum reach: up to 20 km on singlemode fiber
  • Connector type: LC-simplex
  • Power supply: single 3.3 V
  • Monitoring: DDM (Digital Diagnostic Monitoring) supported
  • Input/output interface: LVPECL compatible
  • Standards: IEC-60825 laser safety, RoHS, SFF-8472 compatible

How to use

Install the SFP transceiver into an SFP slot on a compatible switch, router, or media converter, ensuring the device supports 1.25 Gbit/s and BiDi modules. Connect an LC-simplex singlemode patch cable to the transceiver, observing proper fiber handling and cleanliness. Configure the network device as required; DDM parameters can be read through the host device for diagnostics. Power is supplied by the host via the standard 3.3 V SFP interface.

What to consider before purchase

  • Confirm host device supports 1.25 Gbit/s BiDi SFP modules and DDM
  • Ensure the network uses singlemode fiber and LC-simplex connectors
  • Verify required reach does not exceed 20 km

Usage recommendations

Use the Lightwin LWO-SFP-5531-20 in point-to-point singlemode links where reducing fiber count is a priority; keep connectors clean, verify compatibility with the host's SFP vendor policy if applicable, and monitor module health via DDM for preventive maintenance.

Specifications

Maximum data transfer rate:
1250 Mbit/s
Maximum transfer distance:
20000 m
Fiber optic connector:
LC
All features
Interface type:
BiDi SFP
SFP transceiver type:
Fiber optic
Single-mode fiber (SMF) supported:
Yes

Network

Maximum data transfer rate:
1250 Mbit/s

Ports & interfaces

Fiber optic connector:
LC

Technical details

Warranty period:
3 year(s)

Performance

Maximum transfer distance:
20000 m
Link budget:
-22 dB
Rx wavelength (max):
1560 nm
Rx wavelength (min):
1540 nm
Tx wavelength (min):
1540 nm
Tx wavelength (max):
1560 nm

Power

Input voltage:
3.3

Certificates

Compliance certificates:
RoHS

Operational conditions

Operating relative humidity (H-H):
5 - 95
Operating temperature (T-T):
0 - 70

Features

Digital Diagnostics Monitoring (DDM):
Yes

Description

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Customer reviews

Customer questions

FAQ

How much does the Lightwin LWO-SFP-5531-20 1.25 Gbit BiDi SFP cost, and is it available for purchase?

The price is 35.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 95 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 24.07.2026 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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

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-5531-20 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.
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