# RS232 RS485 Converters

# Data Sheet

## RS232 RS485 Converters (C10 - C13)

<table border="1" id="bkmrk-c10-c11-c12-c13-feat" style="border-collapse: collapse; width: 100%;"><colgroup><col style="width: 50%;"></col><col style="width: 50%;"></col></colgroup><tbody><tr><td>**C10 C11 C12 C13**

**[![image.webp](https://doc.redisage.com/uploads/images/gallery/2024-03/scaled-1680-/ewximage.webp)](https://doc.redisage.com/uploads/images/gallery/2024-03/ewximage.webp)**

</td><td>**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 RS-485 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

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

### Introduction  


Most industrial computer systems provide standard RS232 serial ports. Though widely accepted, RS232 has limited transmission speed, range, and networking capabilities.

The RS485 standards overcome these limitations by using differential voltage lines for data and control signals.

The C10 makes it easy to build an industrial-grade, long-distance communication system using standard PC hardware, as it converts RS232 signals into isolated RS485 signals without any need to change any hardware or software.

The design of the isolation between the C10 - C12 is different. If the user wants to supply power from the PLC/PC, the C10 or C12 should be used, otherwise, the isolation will be broken.

### Specification  


<table border="1" id="bkmrk-redisage-pn-c10-c11-" style="border-collapse: collapse; width: 100%; height: 733.672px;"><colgroup><col style="width: 16.6865%;"></col><col style="width: 16.6865%;"></col><col style="width: 16.6865%;"></col><col style="width: 16.6865%;"></col><col style="width: 16.6865%;"></col><col style="width: 16.6865%;"></col><col style="width: 0.0018623%;"></col><col style="width: 0.0018623%;"></col></colgroup><thead><tr style="height: 29.7969px;"><td class="align-center" colspan="2" style="height: 29.7969px;">**Redisage PN**  
</td><td class="align-center" style="height: 29.7969px;">**C10**</td><td class="align-center" style="height: 29.7969px;">**C11**</td><td class="align-center" style="height: 29.7969px;">**C12**</td><td class="align-center" style="height: 29.7969px;">**C13**</td><td>  
</td><td>  
</td></tr></thead><tbody><tr style="height: 29.7969px;"><td colspan="2" style="height: 29.7969px;">Converter ports  
</td><td class="align-center" colspan="4" style="height: 29.7969px;">1 x RS232 &amp; 1 x RS485  
</td><td>  
</td><td>  
</td></tr><tr style="height: 70.0469px;"><td rowspan="2" style="height: 106.188px;">Power  
</td><td style="height: 70.0469px;">Voltage</td><td class="align-center" style="height: 70.0469px;">12-30 VDC /

24 VAC

</td><td class="align-center" colspan="3" style="height: 70.0469px;">12-30 VDC  
</td><td>  
</td><td>  
</td></tr><tr style="height: 36.1406px;"><td style="height: 36.1406px;">Power</td><td class="align-center" colspan="4" style="height: 36.1406px;">&lt; 1 W</td><td>  
</td><td>  
</td></tr><tr style="height: 29.7969px;"><td colspan="2" style="height: 29.7969px;">Frame ground protection  
</td><td class="align-center" colspan="4" style="height: 29.7969px;">yes  
</td><td>  
</td><td>  
</td></tr><tr style="height: 29.7969px;"><td rowspan="2" style="height: 59.5938px;">Serial interface  
</td><td style="height: 29.7969px;">RS232</td><td class="align-center" colspan="4" style="height: 29.7969px;">TxD, Rx, GND  
</td><td>  
</td><td>  
</td></tr><tr style="height: 29.7969px;"><td style="height: 29.7969px;">RS485</td><td class="align-center" colspan="4" style="height: 29.7969px;">A, B  
</td><td>  
</td><td>  
</td></tr><tr style="height: 35.3906px;"><td colspan="2" style="height: 35.3906px;"><span style="color: rgb(45, 194, 107);">3000 VDC isolation</span>

</td><td class="align-center" style="height: 35.3906px;"><span style="color: rgb(45, 194, 107);">3-way</span></td><td class="align-center" style="height: 35.3906px;"><span style="color: rgb(45, 194, 107);">on RS232 side</span></td><td class="align-center" style="height: 35.3906px;"><span style="color: rgb(45, 194, 107);">on RS485 side</span></td><td class="align-center" style="height: 35.3906px;">N/A</td><td>  
</td><td>  
</td></tr><tr style="height: 29.7969px;"><td colspan="2" style="height: 29.7969px;">Baud rate  
</td><td class="align-center" colspan="4" style="height: 29.7969px;">up to 115200 bps  
</td><td>  
</td><td>  
</td></tr><tr style="height: 29.7969px;"><td colspan="2" style="height: 29.7969px;">LED indicators  
</td><td class="align-center" colspan="4" style="height: 29.7969px;">communication Tx, Rx and power  
</td><td>  
</td><td>  
</td></tr><tr style="height: 29.7969px;"><td colspan="2" style="height: 29.7969px;">RS485 termination  
</td><td class="align-center" colspan="4" style="height: 29.7969px;">120 ohm manually enabled  
</td><td>  
</td><td>  
</td></tr><tr style="height: 33.4531px;"><td rowspan="3" style="height: 100.359px;">Connector  
</td><td style="height: 33.4531px;">RS232</td><td class="align-center" colspan="4" style="height: 33.4531px;">3-pin terminal block max. 2.5 mm<sup>2</sup> wire  
</td><td>  
</td><td>  
</td></tr><tr style="height: 33.4531px;"><td style="height: 33.4531px;">RS485</td><td class="align-center" colspan="4" style="height: 33.4531px;">3-pin terminal block max. 2.5 mm<sup>2</sup> wire</td><td>  
</td><td>  
</td></tr><tr style="height: 33.4531px;"><td style="height: 33.4531px;">Power</td><td class="align-center" colspan="4" style="height: 33.4531px;">3-pin terminal block max. 2.5 mm<sup>2</sup> wire</td><td>  
</td><td>  
</td></tr><tr style="height: 63.3906px;"><td rowspan="2" style="height: 93.1875px;">Transmission distance  
</td><td style="height: 63.3906px;">RS485</td><td class="align-center" colspan="4" style="height: 63.3906px;">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></tr><tr style="height: 29.7969px;"><td style="height: 29.7969px;">RS232</td><td class="align-center" colspan="4" style="height: 29.7969px;">max. 15 m at 115.2 kbps  
</td><td>  
</td><td>  
</td></tr><tr style="height: 29.7969px;"><td colspan="2" style="height: 29.7969px;">Mounting and enclosure  
</td><td class="align-center" colspan="4" style="height: 29.7969px;">DIN rail, plastic PA - UL 94 V0, black/green</td><td>  
</td><td>  
</td></tr><tr style="height: 29.7969px;"><td colspan="2" style="height: 29.7969px;">Temperatures</td><td class="align-center" colspan="4" style="height: 29.7969px;">-40°C to +75°C operating and storage</td><td>  
</td><td>  
</td></tr><tr style="height: 29.7969px;"><td colspan="2" style="height: 29.7969px;">Humidity</td><td class="align-center" colspan="4" style="height: 29.7969px;">10 - 90% RH, non-condensing  
</td><td>  
</td><td>  
</td></tr><tr style="height: 35.3906px;"><td colspan="2" style="height: 35.3906px;">ESD protection

</td><td colspan="4" style="height: 35.3906px;">±4 kV contact discharge / ±8 kV air discharge

</td><td>  
</td><td>  
</td></tr><tr style="height: 35.3906px;"><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

#### C10 - THREE-WAY Isolated  


<div drawio-diagram="1629"><img src="https://doc.redisage.com/uploads/images/drawio/2026-02/drawing-29-1770987991.png" alt=""/></div>

#### C11 - RS232 Isolated Side  


<div drawio-diagram="1630"><img src="https://doc.redisage.com/uploads/images/drawio/2026-02/drawing-29-1770988316.png" alt=""/></div>

#### C12 - RS485 Isolated Side  


<div drawio-diagram="1631"><img src="https://doc.redisage.com/uploads/images/drawio/2026-02/drawing-29-1770988741.png" alt=""/></div>

#### C13 - Non-isolated (Active)  


<div drawio-diagram="1632"><img src="https://doc.redisage.com/uploads/images/drawio/2026-02/drawing-29-1770988940.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-c10-c11-c12-c13" style="border-collapse: collapse; width: 100%;"><colgroup><col style="width: 50%;"></col><col style="width: 50%;"></col></colgroup><tbody><tr><td class="align-center">**C10**

**[![image (1).webp](https://doc.redisage.com/uploads/images/gallery/2024-03/scaled-1680-/fLdimage-1.webp)](https://doc.redisage.com/uploads/images/gallery/2024-03/fLdimage-1.webp)**

</td><td class="align-center">**C11**

**[![image (2).webp](https://doc.redisage.com/uploads/images/gallery/2024-03/scaled-1680-/71Limage-2.webp)](https://doc.redisage.com/uploads/images/gallery/2024-03/71Limage-2.webp)**

</td></tr><tr><td class="align-center">**C12**

**[![image (3).webp](https://doc.redisage.com/uploads/images/gallery/2024-03/scaled-1680-/Qi2image-3.webp)](https://doc.redisage.com/uploads/images/gallery/2024-03/Qi2image-3.webp)**

</td><td class="align-center">**C13**

**[![image (4).webp](https://doc.redisage.com/uploads/images/gallery/2024-03/scaled-1680-/TEHimage-4.webp)](https://doc.redisage.com/uploads/images/gallery/2024-03/TEHimage-4.webp)**

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

### 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  


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

#### Datasheet-ID: 

SC-D

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