# Data Sheet ## RS232 RS485 Repeaters (R01 - R04)
**R01 R02 R03 R04** **[![image (4).webp](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/image-4.webp)](https://doc.redisage.com/uploads/images/gallery/2024-04/image-4.webp)** **Features** - Automatic RS485 direction control - ESD protection for the RS232/485 data line - Power supply: +12 to +30 VDC or 24 VAC - 3000 VDC isolation protection on the RS485 side - 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 R01 provides 3-way optical isolation between both RS485 sides and power supply. It can also be used as a repeater to extend the transmission of an existing network. Additionally, an RS485 system can be expanded beyond the 256 nodes limitation imposed by the standard. The R02 is exactly the same as the R01, except for the isolation range. The R02 has one RS485 side isolation. The R03 separator module provides a complete full-duplex, 3-way electrical isolation channel between two RS232 devices. This isolation is an important consideration if a system uses different power sources, has noisy signals or must operate at different ground potentials. The R04 is exactly the same as the R03, except for the isolation range. The R04 has one RS232 side isolation. ### Specifications
**Redisage PN** **R01** **R02** **R03** **R04**
Repeater ports2 x RS4852 x RS232
Power Voltage 12-30 VDC / 24 VAC 12-30 VDC 12-30 VDC / 24 VAC 12-30 VDC
Power< 1 W
Frame ground protectionyes
Serial interface RS232N/ATxD, RxD, GND
RS485A, BN/A
3000 VDC isolation 3-way single side 3-way single side
Baud rate up to 115200 bps
LED indicatorscommunication Tx, Rx and power
RS485 Termination120 ohm manually enabledN/A
ConnectorRS232N/A3-pin terminal block max. 2.5 mm2 wire
RS4853-pin terminal block max. 2.5 mm2 wireN/A
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)
RS232max. 15 m at 115.2 kbps
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, EMC, LVD
Norms 61000-6-2 - Immunity standard for industrial environments 61000-6-4 - Emission standard for industrial environments
### Variants #### R01 - THREE-WAY Isolated RS485 Repeater
#### R02 - Isolated RS485 Repeater
#### R03 - 3-way Isolated RS232 Separator Repeater
#### R04 - Isolated RS232 Separator Repeater
{{@169}} ### Pin assignments
**R01** **[![image.webp](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/5KEimage.webp)](https://doc.redisage.com/uploads/images/gallery/2024-04/5KEimage.webp)** **R02** **[![image (1).webp](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/Y4nimage-1.webp)](https://doc.redisage.com/uploads/images/gallery/2024-04/Y4nimage-1.webp)**
**R03** **[![image (2).webp](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/XZ7image-2.webp)](https://doc.redisage.com/uploads/images/gallery/2024-04/XZ7image-2.webp)** **R04** **[![image (3).webp](https://doc.redisage.com/uploads/images/gallery/2024-04/scaled-1680-/Wnmimage-3.webp)](https://doc.redisage.com/uploads/images/gallery/2024-04/Wnmimage-3.webp)**
### {{@221#bkmrk-enclosure-dimensions}} {{@221#bkmrk-1u-module-enclosure.}} {{@221#bkmrk-}} {{@168}} SR-D