# RS-485 Line Distributor EWIMAR EW-485/4/2/SO with Optical Isolation

**URL:** https://aio.lv/en/product--ewimar-ew-48542so--12036811
**Data updated:** 2026-03-12 16:45 (EET)
**Category:** Network Equipment Accessories
**Manufacturer:** EWIMAR
**Manufacturer code:** EW-485/4/2/SO
**EAN:** 5904041751387
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 229.99 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 190.07 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ewimar-ew-48542so--12036811

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

EWIMAR RS-485 line distributor EW-485/4/2/SO provides signal distribution for RS-485 networks with built-in optical isolation to separate segments. Designed for industrial and building automation, it enables reliable communication between RS-485 devices, reducing interference and protecting equipment. Suitable for extending networks, isolating faults and improving signal integrity.

## Long description

The EWIMAR RS-485 Line Distributor EW-485/4/2/SO with Optical Isolation is a device for distributing RS-485 signals across multiple segments while providing galvanic separation between them. Intended for industrial and building automation applications, this line distributor splits and routes differential data lines to reduce the impact of ground loops, electrical interference and faults. The integrated optical isolation separates network segments to protect connected devices and to maintain stable communication in electrically noisy environments.
Advantages
The unit provides optical isolation between input and output segments to prevent propagation of ground potential differences and transient disturbances. By splitting the RS-485 line into isolated segments it improves signal integrity and reduces the likelihood of communication errors on long or cluttered installations. The distributor is designed for straightforward mounting and integration into existing RS-485 setups without requiring complex configuration.
Suitable for
Industrial control systems that use RS-485 for device communication
Building automation networks such as HVAC, lighting and access control
Extending or branching RS-485 networks while isolating faulty sections
Environments with high electrical noise or potential differences between network parts
Key specifications
Function: RS-485 signal distribution with optical isolation between segments
Channel configuration: single input to multiple isolated outputs (split/branching)
Interface type: differential RS-485 compatible terminals
Isolation: optical/galvanic separation between input and output ports
Application: industrial and building automation signal routing and protection
Mounting: DIN-rail or panel-mount compatible enclosure for control cabinets
How to use
Install the distributor in a control cabinet or on DIN-rail near the RS-485 network wiring. Connect the incoming RS-485 differential pair to the device input terminals and route each outgoing differential pair to the respective remote segments or devices. Ensure correct polarity of A/B data lines and connect a single termination resistor where required by the network topology. The optical isolation requires no user configuration; after wiring the device provides separated signal paths that mitigate interference and isolate faults.
Usage recommendations
Place the distributor at junction points where you need to split RS-485 lines or isolate a noisy segment. Use proper grounding practices for the control cabinet and place termination resistors only at the ends of the overall RS-485 bus to maintain line integrity. Verify differential pair polarity and check communication after installation to confirm reduced errors and stable data exchange.

## FAQ

### How much does the RS-485 Line Distributor EWIMAR EW-485/4/2/SO cost, and is it available for purchase?

The price is 229.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 06.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can RS-485 Line Distributor EWIMAR EW-485/4/2/SO be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 EWIMAR 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 EWIMAR 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/12036811/67524120_large.webp