# Optical Isolation Separator Delta EW-485/1/2/SO — bidirectional optical isolator for signal transmission

**URL:** https://aio.lv/en/product--delta-ew-48512so--11944142
**Data updated:** 2026-03-10 11:49 (EET)
**Category:** I/O Adapters & Controllers
**Manufacturer:** Delta
**Manufacturer code:** EW-485/1/2/SO
**EAN:** 5904041751400
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 91.49 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 75.61 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--delta-ew-48512so--11944142

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.99 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

Delta EW-485/1/2/SO is a bidirectional optical isolation separator designed to transmit signals while providing galvanic isolation between circuits. The device uses optical coupling to separate input and output, preventing ground loops and electrical interference. Suitable for industrial automation, serial link protection, and signal integrity in building management and remote I/O systems.

## Long description

Delta EW-485/1/2/SO is a bidirectional optical isolation separator designed to transmit digital signals while providing galvanic isolation between connected circuits. The device employs optical coupling to separate input and output stages, which prevents ground loops and reduces electrical interference in communication lines. It is intended for use in industrial automation, protection of serial links, and maintaining signal integrity in building management and remote I/O systems.
Advantages
This optical isolator ensures reliable bidirectional data transfer while isolating different parts of a system electrically. By using optical coupling, it eliminates direct conductive paths that can carry transient voltages, improving noise immunity and protection against common-mode voltages. The compact design facilitates installation in control cabinets and on DIN rails, and the device supports long-term stable operation in typical industrial environments.
Suitable for
Isolating RS-485 or other differential serial communication lines
Protecting remote I/O modules and field devices from ground potential differences
Reducing interference in building automation and HVAC control networks
Ensuring signal integrity over longer cable runs in industrial systems
Key specifications
Bidirectional optical isolation for digital signal transmission
Galvanic separation between input and output circuits
Designed for use with differential serial communications and similar signal types
Compact form factor suitable for DIN-rail mounting in control cabinets
Improved common-mode noise rejection and transient protection through optical coupling
How to use
Install the isolator according to the control panel layout, ensuring secure mechanical mounting and correct orientation for signal flow. Connect the communication pair from the source device to the input terminals and connect the output terminals to the receiving device, observing wiring polarity for differential lines. Supply any required auxiliary power or reference connections as specified by the system design, and verify signal continuity and proper isolation before commissioning. Perform functional checks with the communication protocol active to confirm bidirectional data transfer and stable operation.
Usage recommendations
Place the isolator between sections of the network that experience ground potential differences or frequent transient disturbances. Use shielded twisted-pair cabling and proper termination for differential lines to maximize signal integrity. Regularly inspect terminal connections and mounting points as part of preventive maintenance to maintain reliable isolation and communication performance.

## FAQ

### How much does the Delta EW-485/1/2/SO Optical Isolation Separator cost, and is it available for purchase?

The price is 91.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 13.07.2026 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 Delta EW-485/1/2/SO Optical Isolation Separator 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 Delta 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 Delta 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/11944142/67387025_large.webp