# Adapter RJ45 to RJ12/RJ11 DATACOM 100 pcs — modular connector adapter set

**URL:** https://aio.lv/en/product--datacom-4255--3523892
**Data updated:** 2025-12-29 11:00 (EET)
**Category:** RJ Plugs & Boots
**Manufacturer:** DATACOM
**Manufacturer code:** 4255
**EAN:** 8596250005565
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

Pack of 100 DATACOM RJ45 to RJ12/RJ11 adapters (MPN 4255). These modular connector adapters allow connection of RJ12 or RJ11 plugs to RJ45 jacks for telephone and low-speed data lines. Suitable for converting pinouts or testing, they provide a simple mechanical interface without altering wiring. Useful for installers, technicians, and small office setups.

## Long description

DATACOM RJ45 to RJ12/RJ11 adapter — pack of 100 modular reduction inserts (MPN 4255). These white adapters allow insertion of an RJ12 (RJ11) plug into an RJ45 jack, providing a simple mechanical interface for telephone and low-speed data lines without changing the existing wiring. Pins 1 and 8 on the RJ45 connector remain protected from damage.
Advantages
The adapter set is supplied in a quantity of 100, is finished in white, and preserves unused RJ45 pins to prevent accidental contact or damage. It provides a quick, reversible way to accept RJ12/RJ11 plugs in standard RJ45 sockets and requires no rewiring or tools for basic insertion.
Suitable for
 Connecting RJ12 or RJ11 telephone plugs to RJ45 wall jacks
 Field testing and temporary conversions in installations
 Installers, technicians, and small office network/telephone setups
Key specifications
 Brand: DATACOM
 Manufacturer part number (MPN): 4255
 EAN: 8596250005565
 Quantity: 100 pieces per pack
 Color: white
 Type: RJ45 (female) to RJ12/RJ11 (female) adapter / reduction insert
 Purpose: mechanical converter for RJ12/RJ11 plugs into RJ45 ports; preserves RJ45 pins 1 and 8
How to use
Insert the adapter into the RJ45 jack until it seats firmly. Then insert the RJ12 or RJ11 plug into the adapter. The adapter provides a mechanical fit so that the plug engages the required central pins of the socket; no rewiring is necessary. To remove, withdraw the plug and then pull the adapter out of the RJ45 jack.
Usage recommendations
Intended for telephone and low-speed data connections; not designed for gigabit Ethernet. Use for temporary conversions, testing, or installations where only the central RJ12/RJ11 pins are required. Store in a dry environment and avoid excessive force when inserting or removing plugs to protect socket contacts.

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### What is the warranty period?

All DATACOM 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 DATACOM 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

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