# Optical Fiber Loopback Adapter DeLOCK 86931

**URL:** https://aio.lv/en/product--delock-86931--4115655
**Data updated:** 2025-12-29 15:40 (EET)
**Category:** Fiber Optic Cables
**Manufacturer:** DELOCK
**Manufacturer code:** 86931
**EAN:** 4043619869312
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 12.49 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 10.32 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--delock-86931--4115655

## 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 | 1.99 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

The DeLOCK Optical Fiber Loopback Adapter LC / OM3 Multi-mode is designed for testing and troubleshooting fiber optic networks. It features a 0.06 m length, OM3 fiber type, and a 50 µm core diameter. This full duplex adapter ensures reliable data transmission and is compatible with LC connectors, making it ideal for various networking applications.

## Long description

The Optical Fiber Loopback Adapter DeLOCK 86931 is a compact LC/OM3 multimode loopback designed for testing and troubleshooting fiber optic links. With a length of 0.06 m and a 50 µm core diameter, this loopback enables measurement of transmission capability and verification of full-duplex operation on LC-terminated multimode cabling.
Advantages
This DeLOCK loopback adapter provides a simple and reliable means to test optical fiber ports and channels without requiring additional active equipment. Its OM3 multimode construction and LC connector compatibility allow consistent results when measuring loss, continuity, and duplex transmission on standard multimode networks.
Suitable for
Testing and troubleshooting LC-terminated multimode fiber links
Verifying transmission capability and continuity of OM3 fibers
Validating full-duplex optical ports in networking equipment
Laboratory measurements and maintenance checks on multimode installations
Key specifications
Brand: DELOCK
Model / MPN: 86931
EAN: 4043619869312
Connector type: LC (male loopback)
Fiber type: OM3 multimode
Core diameter: 50 µm
Length: 0.06 m
How to use
Insert the LC connector of the loopback adapter into the LC port to be tested so that the transmit and receive paths are looped back. Run your optical test procedure or diagnostic tool to measure loss, continuity, or duplex functionality. Remove the adapter after testing and store it in a protective case to prevent contamination of the fiber endfaces.
Usage recommendations
Keep the LC endfaces clean and free of dust; use appropriate fiber cleaning tools before connecting. Avoid bending the fiber beyond its minimum bend radius and store the adapter in a dry, dust-free environment when not in use.

## Specifications

| Feature | Value |
|---|---|
| Full duplex | Yes |
| Operating temperature (T-T) | -20 - 70 |
| Cable length | 0.06 m |
| Product colour | Aqua colour, Beige |
| Connector 1 | LC |
| Cable diameter | 3 mm |
| Insertion loss | 0.5 dB |
| Fiber mode structure | Multi-mode |
| Core diameter | 50 µm |
| Cladding diameter | 125 µm |
| Jacket material | Polyvinyl chloride (PVC) |
| Connector 1 gender | Male |
| Fibre optic type | OM3 |

## FAQ

### How much does the Optical Fiber Loopback Adapter DeLOCK 86931 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 — 1100 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: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay. 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 DELOCK 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 DELOCK 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

### Where can I download the instructions for Optical Fiber Loopback Adapter DeLOCK 86931?

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/4115655/64252068_large.webp