# Fiber Optic Network Coupler helos LC Single-Mode Duplex 205558

**URL:** https://aio.lv/en/product--helos-205558--3527153
**Data updated:** 2026-02-12 09:54 (EET)
**Category:** Cable Adapters & Converters
**Manufacturer:** helos
**Manufacturer code:** 205558
**EAN:** 4005938055586
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 12.49 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 10.32 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--helos-205558--3527153

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.99 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

The helos Network Coupler LC Single-Mode Duplex 205558 is a fiber optic coupler designed for single-mode LC duplex connections. It provides reliable fiber link coupling for network installations, patch panels and equipment interconnects. Suitable for telecommunication and data center use where compact LC duplex interfaces are required; simplifies cable management and ensures consistent optical connectivity.

## Long description

The helos LC Single-Mode Duplex Network Coupler 205558 is a compact fiber optic adapter designed to join two LC single-mode duplex connectors with precise alignment. It provides a stable physical connection for single-mode fibers in network installations, patch panels and equipment interconnects. The coupler's duplex LC interface helps maintain optical performance while minimizing space usage in racks and enclosure panels.
Advantages
This LC duplex coupler offers reliable fiber alignment and low insertion loss suitable for single-mode links. Its compact duplex format supports high-density installations and simplifies cable routing by keeping paired fibers together. The sturdy housing ensures consistent mating cycles and protection of fiber ferrules, while compatibility with standard LC connectors allows easy integration into existing cabling infrastructure.
Suitable for
 Telecommunication equipment connections
 Data center patch panels and fiber trays
 Server and network equipment interconnects
 Fiber optic wall plates and distribution boxes
 Field splicing enclosures requiring LC duplex interfaces
Key specifications
 Connector type: LC duplex
 Fiber type: single-mode
 Form factor: duplex coupler for mating two LC duplex plugs
 Typical insertion loss: low (designed for single-mode performance)
 Durability: designed for multiple mating cycles
 Mounting: panel or chassis installation compatible
 Material: durable housing to protect ferrules and alignment sleeves
How to use
Install the coupler into a compatible panel cutout or chassis opening aligned with LC duplex ports. Insert LC single-mode duplex plugs into each side of the coupler until they click into place, ensuring correct alignment and secure connection. Verify optical continuity and signal quality using appropriate test equipment. To disconnect, depress the connector latch and withdraw the plug carefully to avoid damaging ferrules.
Usage recommendations
Handle fiber connectors with clean hands and use fiber-safe cleaning tools to remove dust and contaminants before mating. Avoid bending the fiber beyond recommended minimum bend radius near the coupler and secure cables to reduce strain on the connection. For critical links, perform insertion loss and return loss measurements after installation and use dust caps when ports are not in use.

## FAQ

### How much does the helos LC Single-Mode Duplex Network Coupler 205558 cost, and is it available for purchase?

The price is 12.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 21 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 15.07.2026 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 helos 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 helos 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

https://aio.lv/img/cache/product/3527153/59843628_large.webp