# RS485 HUBs # Data Sheet ## RS485 HUBs (H01 - H03)
**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)** **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: 90x56.4x17.5 mm - 3 years warranty - Customization of OEM is welcomed
### 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
**Redisage PN** **H01** **H02** **H03**
Input1 x RS485 channel; Data+, Data-
Output3 x RS485 channels; Data+, Data-
Power Voltage 12-30 VDC / 24 VAC 12-30 VDC
Power< 1 W
Frame ground protectionyes
3000 VDC isolation 3-way branched side main side
Baud rate up to 115200 bps
LED indicatorscommunication Tx, Rx and power
RS485 termination120 ohm manually enabled
Connector RS4858-pin terminal block max. 2.5 mm2 wire
Power3-pin terminal block max. 2.5 mm2 wire
Transmission distance RS485 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)
Mounting and enclosureDIN rail, plastic PA - UL 94 V0, black/green
Temperatures-40°C to +75°C operating and storage
Humidity10 - 90% RH, non-condensing
ESD protection ±4 kV contact discharge / ±8 kV air discharge
Certification CE, RoHS
### Variants #### H01 - THREE-WAY Isolated RS485 HUB
#### H02 - Branched Side Isolated RS485 HUB
#### H03 - Main Side Isolated RS485 HUB
### 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.
If earth ground is not available FG can be left floating or it can be connected with the power supply GND. ### Pin assignments
**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)** **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)**
**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)**
### Enclosure dimensions 1U Module Enclosure 98 x 17.5 x 56.4 Units: mm [![image.webp](https://doc.redisage.com/uploads/images/gallery/2024-05/scaled-1680-/iDCimage.webp)](https://doc.redisage.com/uploads/images/gallery/2024-05/iDCimage.webp) ### Additional notes ### Products family sample photo
[https://redisage.com](https://redisage.com/) **DISCLAMER NOTES** ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE. #### Datasheet-ID: SR-D # Contact Us - [Main web page](https://redisage.com/) - [Facebook](https://www.facebook.com/Redisage/) - E-mail: - Phone number: +48 71 70 00 140 - Address: NSG 4L Sp. z o.o. ul. Trzy Lipy 3B 80-172 Gdańsk (POLSKA) - [More information](https://redisage.com/en/contact.html)