# RS485 HUBs

# Data Sheet

## RS485 HUBs (H01 - H03)

<table border="1" id="bkmrk-h01-h02-h03-features" style="border-collapse: collapse; width: 100%;"><colgroup><col style="width: 50%;"></col><col style="width: 50%;"></col></colgroup><tbody><tr><td>**H01 H02 H03**

**[![pol_pl_H01-HUB-RS485-1-3-TROJSTRONNA-izolacja-3kV-DC-19_2.jpg](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/pol-pl-h01-hub-rs485-1-3-trojstronna-izolacja-3kv-dc-19-2.jpg)](https://doc.redisage.com/uploads/images/gallery/2024-04/pol-pl-h01-hub-rs485-1-3-trojstronna-izolacja-3kv-dc-19-2.jpg)**

</td><td>**Features**

- Isolated RS485 1:3 HUB
- ESD protection for the RS485 data line
- Power supply: +12 to +30 VDC or 24 VAC
- 3000 VDC isolation protection
- Transmission speed up to 115200 bps
- Tx, Rx and power LED indicators
- RS485 embedded termination 120 ohm
- Operating temperatures: -40°C to +75°C
- DIN-rail mounting
- Compact size - single module format (1M)
- Dimensions: 90x56.4x22.5 mm
- 3 years warranty
- Customization of OEM is welcomed

</td></tr></tbody></table>

### Introduction

The products from the H01-H03 family are reliable RS485 signal hubs made to work with variable transmission speeds. They allow flexible branching of the 1:3 interface while simultaneously protecting the attached devices thanks to internal 3 kV/DC galvanic isolation. Additionally, dedicated EMC protections will improve transmission quality and limit the impact of interference typical for an industrial environment.

### Specifications

<table border="1" id="bkmrk-redisage-pn-h01-h02-" style="border-collapse: collapse; width: 100%; height: 602.203px;"><colgroup><col style="width: 20.0238%;"></col><col style="width: 20.0238%;"></col><col style="width: 20.0238%;"></col><col style="width: 20.0238%;"></col><col style="width: 20.0238%;"></col><col style="width: 0%;"></col><col style="width: 0%;"></col><col style="width: 0.0018623%;"></col></colgroup><thead><tr style="height: 35.3906px;"><td class="confluenceTh align-center" colspan="2" style="height: 35.3906px;">**Redisage PN**  
</td><td class="confluenceTh align-center" style="height: 35.3906px;">**H01**

</td><td class="confluenceTh align-center" style="height: 35.3906px;">**H02**

</td><td class="confluenceTh align-center" style="height: 35.3906px;">**H03**

</td><td>  
</td><td>  
</td><td>  
</td></tr></thead><tbody><tr style="height: 29.7969px;"><td class="confluenceTd" colspan="2" style="height: 29.7969px;">Input</td><td class="confluenceTd align-center" colspan="3" style="height: 29.7969px;">1 x RS485 channel; Data+, Data-</td><td>  
</td><td>  
</td><td>  
</td></tr><tr style="height: 29.7969px;"><td class="confluenceTd" colspan="2" style="height: 29.7969px;">Output</td><td class="confluenceTd align-center" colspan="3" style="height: 29.7969px;">3 x RS485 channels; Data+, Data-</td><td>  
</td><td>  
</td><td>  
</td></tr><tr style="height: 35.3906px;"><td class="confluenceTd" rowspan="2" style="height: 65.1875px;">Power

</td><td class="confluenceTd" style="height: 35.3906px;">Voltage

</td><td class="confluenceTd align-center" style="height: 35.3906px;">12-30 VDC / 24 VAC

</td><td class="confluenceTd align-center" colspan="2" style="height: 35.3906px;">12-30 VDC

</td><td>  
</td><td>  
</td><td>  
</td></tr><tr style="height: 29.7969px;"><td class="confluenceTd" style="height: 29.7969px;">Power</td><td class="confluenceTd align-center" colspan="3" style="height: 29.7969px;">&lt; 1 W</td><td>  
</td><td>  
</td><td>  
</td></tr><tr style="height: 29.7969px;"><td class="confluenceTd" colspan="2" style="height: 29.7969px;">Frame ground protection</td><td class="confluenceTd align-center" colspan="3" style="height: 29.7969px;">yes</td><td>  
</td><td>  
</td><td>  
</td></tr><tr style="height: 35.3906px;"><td class="confluenceTd" colspan="2" style="height: 35.3906px;"><span class="legacy-color-text-green4" style="color: rgb(45, 194, 107);">3000 VDC isolation</span>

</td><td class="confluenceTd align-center" style="height: 35.3906px;"><span class="legacy-color-text-green4" style="color: rgb(45, 194, 107);">3-way  
</span>

</td><td class="confluenceTd align-center" style="height: 35.3906px;"><span class="legacy-color-text-green4" style="color: rgb(45, 194, 107);">branched side</span>

</td><td class="confluenceTd align-center" style="height: 35.3906px;"><span class="legacy-color-text-green4" style="color: rgb(45, 194, 107);">main side</span>

</td><td>  
</td><td>  
</td><td>  
</td></tr><tr style="height: 35.3906px;"><td class="confluenceTd" colspan="2" style="height: 35.3906px;">Baud rate

</td><td class="confluenceTd align-center" colspan="3" style="height: 35.3906px;">up to 115200 bps

</td><td>  
</td><td>  
</td><td>  
</td></tr><tr style="height: 29.7969px;"><td class="confluenceTd" colspan="2" style="height: 29.7969px;">LED indicators</td><td class="confluenceTd align-center" colspan="3" style="height: 29.7969px;">communication Tx, Rx and power</td><td>  
</td><td>  
</td><td>  
</td></tr><tr style="height: 29.7969px;"><td class="confluenceTd" colspan="2" style="height: 29.7969px;">RS485 termination</td><td class="confluenceTd align-center" colspan="3" style="height: 29.7969px;">120 ohm manually enabled</td><td>  
</td><td>  
</td><td>  
</td></tr><tr style="height: 33.4531px;"><td class="confluenceTd" rowspan="2" style="height: 66.9062px;">Connector  
</td><td class="confluenceTd" style="height: 33.4531px;">RS485</td><td class="confluenceTd align-center" colspan="3" style="height: 33.4531px;">8-pin terminal block max. 2.5 mm<sup>2</sup> wire</td><td>  
</td><td>  
</td><td>  
</td></tr><tr style="height: 33.4531px;"><td class="confluenceTd" style="height: 33.4531px;">Power</td><td class="confluenceTd align-center" colspan="3" style="height: 33.4531px;">3-pin terminal block max. 2.5 mm<sup>2</sup> wire</td><td>  
</td><td>  
</td><td>  
</td></tr><tr style="height: 80.1719px;"><td class="confluenceTd" style="height: 80.1719px;">Transmission  
distance

</td><td class="confluenceTd" style="height: 80.1719px;">RS485

</td><td class="confluenceTd align-center" colspan="3" style="height: 80.1719px;">max. 1,200 m at 9.6 kbps; max. 400 m at 115.2 kbps  
(Belden 9841 2P twisted-pair cable, if different cables are used,  
the transmission distance may change)

</td><td>  
</td><td>  
</td><td>  
</td></tr><tr style="height: 29.7969px;"><td class="confluenceTd" colspan="2" style="height: 29.7969px;">Mounting and enclosure</td><td class="confluenceTd align-center" colspan="3" style="height: 29.7969px;">DIN rail, plastic PA - UL 94 V0, black/green</td><td>  
</td><td>  
</td><td>  
</td></tr><tr style="height: 29.7969px;"><td class="confluenceTd" colspan="2" style="height: 29.7969px;">Temperatures</td><td class="confluenceTd align-center" colspan="3" style="height: 29.7969px;">-40°C to +75°C operating and storage  
</td><td>  
</td><td>  
</td><td>  
</td></tr><tr style="height: 29.7969px;"><td class="confluenceTd" colspan="2" style="height: 29.7969px;">Humidity</td><td class="confluenceTd align-center" colspan="3" style="height: 29.7969px;">10 - 90% RH, non-condensing</td><td>  
</td><td>  
</td><td>  
</td></tr><tr style="height: 35.3906px;"><td class="confluenceTd" colspan="2" style="height: 35.3906px;">ESD protection

</td><td class="confluenceTd align-center" colspan="3" style="height: 35.3906px;"><span data-colorid="p81ipcru0k">±</span>4 kV contact discharge / <span data-colorid="s3jp7l5tbd">±</span>8 kV air discharge

</td><td>  
</td><td>  
</td><td>  
</td></tr><tr style="height: 10px;"><td colspan="2" data-colwidth="68,50" style="height: 32.375px;">Certification

</td><td class="align-center" colspan="6" data-colwidth="102,101" style="height: 32.375px;">CE, RoHS, EMC, LVD

</td></tr><tr><td colspan="2" style="height: 58.9844px;">Norms

</td><td colspan="6" style="height: 58.9844px;">61000-6-2 - Immunity standard for industrial environments

61000-6-4 - Emission standard for industrial environments

</td></tr></tbody></table>

### Variants

#### H01 - THREE-WAY Isolated RS485 HUB  


<div drawio-diagram="1674"><img src="https://doc.redisage.com/uploads/images/drawio/2026-03/drawing-29-1773059149.png" alt=""/></div>

#### H02 - Branched Side Isolated RS485 HUB  


<div drawio-diagram="1675"><img src="https://doc.redisage.com/uploads/images/drawio/2026-03/drawing-29-1773059165.png" alt=""/></div>

#### H03 - Main Side Isolated RS485 HUB  


<div drawio-diagram="1676"><img src="https://doc.redisage.com/uploads/images/drawio/2026-03/drawing-29-1773059172.png" alt=""/></div>

### Frame ground FG  


Electronic circuits are constantly prone to electrostatic discharge ESD. Redisage Electronics modules feature a design for the frame ground terminal block FG. The frame ground provides a path for bypassing ESD, which provides enhanced static protection ESD abilities and ensures the module is more reliable. Connecting FG terminal block to the earth ground will bypass the ESD disturbances outside the device so will provide a better level of protection against ESD.

Frame Ground FG connection reference drawing is provided below.

<div drawio-diagram="177"><img src="https://doc.redisage.com/uploads/images/drawio/2024-03/drawing-10-1711619289.png" alt=""/></div>

If earth ground is not available FG can be left floating or it can be connected with the power supply GND.

### Pin assignments  


<table border="1" id="bkmrk-h01-h02-h03" style="border-collapse: collapse; width: 100%;"><colgroup><col style="width: 50.0618%;"></col><col style="width: 50.0618%;"></col></colgroup><tbody><tr><td class="align-center">**H01**

**[![image (5).webp](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/image-5.webp)](https://doc.redisage.com/uploads/images/gallery/2024-04/image-5.webp)**

</td><td class="align-center">**H02**

**[![image (6).webp](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/image-6.webp)](https://doc.redisage.com/uploads/images/gallery/2024-04/image-6.webp)**

</td></tr><tr><td class="align-center" colspan="2">**H03**

**[![image (7).webp](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/image-7.webp)](https://doc.redisage.com/uploads/images/gallery/2024-04/image-7.webp)**

</td></tr></tbody></table>

### Enclosure dimensions

2U Module Enclosure  
98 x 22.5 x 56.4  
Units: mm

[![image (1).webp](https://doc.redisage.com/uploads/images/gallery/2024-05/scaled-1680-/54Kimage-1.webp)](https://doc.redisage.com/uploads/images/gallery/2024-05/54Kimage-1.webp)

### Additional notes  


<table border="1" id="bkmrk-related-information-" style="border-collapse: collapse; width: 100%;"><colgroup><col style="width: 33.3745%;"></col><col style="width: 33.3745%;"></col><col style="width: 33.3745%;"></col></colgroup><thead><tr><td class="align-center" colspan="3">**Related information and links**  
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### Products family sample photo  


<div drawio-diagram="557"><img src="https://doc.redisage.com/uploads/images/drawio/2024-04/drawing-10-1714134602.png" alt=""/></div>

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ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.

#### Datasheet-ID: 

SR-D

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