# Expansion Board Renkforce RF-4011279 RS‑232 Serial Interface

**URL:** https://aio.lv/en/product--renkforce-rf-4011279--1721947
**Data updated:** 2026-02-12 09:44 (EET)
**Category:** I/O Adapters & Controllers
**Manufacturer:** Renkforce
**Manufacturer code:** RF-4011279
**EAN:** 4016138975451
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 22.99 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 19.00 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--renkforce-rf-4011279--1721947

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.99 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Renkforce Expansion Board RF-4011279 provides an RS-232 serial interface for integrating legacy serial devices with compatible systems. Designed for connection to host boards or controllers, it enables serial communication for data exchange, configuration and control tasks. Suitable for industrial, laboratory or development use where RS-232 connectivity is required.

## Long description

The Renkforce Expansion Board RF-4011279 RS‑232 Serial Interface adds a standard RS-232 port to compatible host boards and controllers, enabling direct serial communication with legacy devices and instruments. Designed for integration into industrial, laboratory and development environments, the board provides reliable point-to-point data exchange, device configuration and basic control signals required by many serial peripherals. The product is intended for users who need to connect printers, measurement instruments, PLCs or other equipment that use the RS-232 protocol.
Advantages
This RS-232 interface board supports stable, long-established serial communication with simple wiring and low protocol overhead. It allows straightforward integration with existing systems, reducing the need for complex protocol converters. The design focuses on compatibility and robustness for continuous operation in non-demanding industrial and laboratory settings. Compact form and standard connector types facilitate installation on host boards or inside control cabinets.
Подходит для
 Подключения последовательных принтеров и терминалов
 Интеграции измерительных приборов и лабораторного оборудования
 Связи с контроллерами и промышленными устройствами с RS-232
 Использования в проектах разработки и отладки встраиваемых систем
Key specifications
 Interface type: RS-232 serial port (asynchronous)
 Physical connector: standard D-sub or equivalent serial connector compatible with RS-232 devices
 Supported signal levels: compliant with RS-232 voltage levels for transmit, receive and control lines
 Typical baud rate range: supports standard serial bit rates commonly used with RS-232 devices
 Mounting: expansion board format for connection to host boards or controllers
 Operational environment: suitable for laboratory and industrial applications with typical ambient conditions
How to use
Fit the expansion board to a compatible host board or controller following the host manufacturer’s instructions. Connect the RS-232 cable between the expansion board’s serial connector and the serial port of the target device. Configure communication parameters on both ends (baud rate, parity, data bits, stop bits and flow control) so they match, then open the serial port in your terminal software or host application to begin data exchange. Observe correct wiring for control signals if hardware handshaking is used.
Usage recommendations
Use shielded serial cabling and avoid running cables alongside high-voltage or high-current lines to reduce noise. Verify matching communication parameters before testing, and check the host board documentation for required mounting orientation and supply considerations. For installations in electrically noisy environments, consider adding transient protection on the host side.

## FAQ

### How much does the Renkforce RF-4011279 RS-232 Expansion Board cost, and is it available for purchase?

The price is 22.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 465 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 14.07.2026 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 Renkforce 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 Renkforce 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/1721947/47532755_large.webp