# Passive Video Balun EWIMAR TR-1F-HD for AHD/HD-CVI/HD-TVI Systems, Pack of 2

**URL:** https://aio.lv/en/product--ewimar-tr-1f-hd--12376008
**Data updated:** 2026-04-26 20:47 (EEST)
**Category:** CCTV Accessories
**Manufacturer:** EWIMAR
**Manufacturer code:** TR-1F-HD
**EAN:** 5904041751172
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 14.99 €
**Prices and availability valid until:** 2026-07-09 23:59
**Price without VAT (21%):** 12.39 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ewimar-tr-1f-hd--12376008

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 02.07.2026 | free |
| Pickup points | 07.07.2026 | 1.99 EUR |
| Courier delivery to door | 07.07.2026 | 4.99 EUR |

## Summary description

EWIMAR TR-1F-HD is a passive video balun designed for transmitting analog HD video over twisted-pair cabling in AHD, HD-CVI and HD-TVI surveillance systems. Supplied as a pack of two, it enables balanced-to-unbalanced conversion for camera video signals, reducing interference and allowing longer cable runs using UTP/STP cable in CCTV installations.

## Long description

EWIMAR TR-1F-HD is a passive video balun kit supplied as a pack of two, designed to transmit analog HD video signals from AHD, HD-CVI and HD-TVI cameras over twisted-pair cabling. The devices perform balanced-to-unbalanced conversion to allow use of UTP or STP cable for CCTV installations, helping to reduce common-mode interference and enabling longer cable runs compared with direct coaxial connections. Each balun provides a simple, low-power way to integrate HD analog cameras into structured-cable infrastructures without signal boosters or active electronics.
Advantages
The EWIMAR TR-1F-HD units are passive, requiring no external power and offering plug-and-play operation for analog HD video links. They are compatible with multiple HD analog standards (AHD, HD-CVI, HD-TVI) which simplifies inventory and deployment. By converting unbalanced coaxial outputs to balanced twisted-pair signals they improve immunity to electromagnetic interference and allow installers to use commonly available UTP/STP cable to extend camera-to-recorder distances.
Suitable for
Connecting AHD, HD-CVI and HD-TVI cameras to DVRs over UTP or STP cable
Retrofit CCTV projects where coax runs are replaced or supplemented by twisted-pair wiring
Short- to medium-distance camera links where passive conversion and low maintenance are preferred
When it may not be suitable
Because the TR-1F-HD is a passive balun, it does not provide signal amplification or active equalization. For very long cable runs beyond recommended passive limits, or in installations with severe cable loss, an active video extender or amplifier may be required. The unit is intended for analog HD formats and is not suitable for native IP camera transmission.
Key specifications
Function: Passive video balun for analog HD surveillance signals
Supported formats: AHD, HD-CVI, HD-TVI
Cable type: Designed for use with UTP or STP twisted-pair cable
Pack quantity: 2 units per package
Typical installation: Camera-side and recorder-side connections between coax and twisted pair
How to use
Connect the coaxial video output of the camera to the BNC connector on the balun and terminate the twisted-pair cable on the balun's pair screw terminals or RJ-45-style connector depending on model end. At the recorder end, use a matching passive balun to convert the twisted-pair signal back to coaxial for the DVR input. Ensure correct polarity on the twisted-pair connections to maintain proper video phase. No power connection is needed for normal operation. Test the video feed after installation and, if necessary, swap pair polarity to correct picture inversion or color issues.
What to consider before purchase
Confirm camera and DVR formats are AHD, HD-CVI or HD-TVI (not IP)
Estimate cable run length and cable type to ensure passive transmission will meet distance requirements
Check connector types and mounting needs to match your installation (BNC, screw terminals, etc.)
Usage recommendations
Use good quality UTP/STP cable (cat5e or better) and maintain proper pair polarity. For runs approaching the maximum passive distance, test the video under final cable routing and consider using shielded twisted pair in electrically noisy environments. Install matching baluns at both ends of the link for reliable operation.

## FAQ

### How much does the Passive Video Balun EWIMAR TR-1F-HD cost, and is it available for purchase?

The price is 14.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 9941 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 02.07.2026 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 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/12376008/68521184_large.webp