# Serial cable ROLINE 12.02.1174 — USB Type-A to RS-422/RS-485, black

**URL:** https://aio.lv/en/product--roline-12021174--11794048
**Data updated:** 2026-03-09 07:23 (EET)
**Category:** Serial & Parallel Cables
**Manufacturer:** ROLINE
**Manufacturer code:** 12.02.1174
**EAN:** 7630049674325
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 62.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 51.64 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--roline-12021174--11794048

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.07.2026 | free |
| Pickup points | 06.07.2026 | 1.99 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

ROLINE 12.02.1174 serial cable connects a USB Type-A host to RS-422 or RS-485 serial interfaces. The black cable provides a USB Type-A connector on one end and an RS-422/RS-485 connector on the other, enabling data exchange and control between modern PCs and industrial or legacy serial devices. Suitable for configuration, monitoring and automation tasks.

## Long description

The ROLINE 12.02.1174 serial cable provides a USB Type-A to RS-422/RS-485 interface in a compact, black inline converter. It enables modern computers with USB ports to communicate with industrial equipment and legacy serial devices that use RS-422 or RS-485 signalling. The cable is USB bus powered and supports plug-and-play operation for straightforward connection without an external power supply.
Advantages
This cable supports both RS-422 and RS-485 serial standards, allowing flexible use with a range of devices. It complies with USB 1.1 specifications and supports data rates up to 921.6 kbit/s, providing sufficient throughput for many configuration, monitoring and control tasks. The adapter is delivered with a DB9 female to 5-pin terminal block adapter and a user manual, simplifying installation and wiring. Compatibility with common Windows versions ensures easy driver support and setup.
Suitable for
 Connecting industrial controllers, PLCs or sensors to a PC for configuration and monitoring
 Integrating legacy serial equipment such as modems or measurement devices with modern computers
 Field service and diagnostics where portable USB-to-serial access is required
 Automation tasks that require RS-422 or RS-485 communication over a single USB port
Key specifications
 Interface: USB Type-A (male) to RS-422/RS-485 (male)
 Supported serial modes: RS-422 and RS-485
 USB standard: USB 1.1 compliant
 Maximum data transfer rate: up to 921.6 kbit/s
 Power: USB bus powered (no external power required)
 Operating system support: Windows 7 / 8 / 10 (32/64-bit)
 Included accessories: DB9 female to 5-pin terminal block adapter and user manual
 Color: black
How to use
Connect the USB Type-A plug to an available USB port on the host computer and attach the RS-422/RS-485 connector to the target device or use the supplied DB9-to-terminal adapter to wire individual signal lines. The cable draws power from the USB port and, on supported systems, will be recognised by the operating system for driver installation or automatic configuration. Configure serial parameters (baud rate, parity, data bits and stop bits) in the host application or device management software to match the connected device. For RS-485 networks, observe proper termination and signal polarity when connecting multiple devices.
Usage recommendations
Use shielded cabling and correct grounding practices in industrial environments to reduce electromagnetic interference. Ensure matching serial settings between host and device and apply termination resistors on long RS-485 runs or multi-drop networks to maintain signal integrity. For critical applications, test communication at the intended data rate and verify driver compatibility with the host operating system before deployment.

## Specifications

| Feature | Value |
|---|---|
| Product colour | Black |
| Connector 1 | USB Type-A |
| Connector 2 | RS-422/RS-485 |
| Windows operating systems supported | Windows 10, Windows 7, Windows 8 |
| Connector 1 form factor | Straight |
| Connector 2 form factor | Straight |
| Connector 1 gender | Male |
| Connector 2 gender | Male |

## FAQ

### How much does the Serial cable ROLINE 12.02.1174 USB Type-A to RS-422/RS-485 cost, and is it available for purchase?

The price is 62.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 97 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 01.07.2026 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, 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 ROLINE 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 ROLINE 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/11794048/67317901_large.webp