Hardware Serial Port Server (C20 - C25) RemoteCOM can be installed on any device from the Redisage C20 - C25 Ethernet Converters family. Features Features Ethernet converter to RS232/RS485 ESD protection for the RS485 data line Power supply: +12 to +30 VDC 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 Dimensions: 90x56.4x22.5 mm 3 years warranty Customization of OEM is welcomed 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. Specifications Redisage PN C20 C21 C22 C23 C24 C25 Ports RS232 2x - - 4x - 2x RS485 - 1x - - 4x 2x RS232/RS485 - - 2x - - - Microcontroller ESP32 STM32F4 WiFi N/A Power Voltage 12-30 VDC Power < 1 W Frame ground connection yes Baud rate up to 115200 bps LED indicators communication Tx, Rx and power RS485 termination 120 ohm manually enabled Connector RS232/RS485 8-pin terminal block max. 2.5 mm 2 wire Power 3-pin terminal block max. 2.5 mm 2 wire Ethernet RJ45 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) RS232 max. 15 m at 115.2 kbps Mounting and enclosure DIN rail, plastic PA - UL 94 V0, black/green Temperatures -40°C to +75°C operating and storage Humidity 10 - 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 LED indicators Converters C20 - C22 Converters C23 - C25 LED indicator Color Function LED indicator Color Function PW Blue Power PW Blue Power ETH Green Network activity ETH Green Network activity ST Orange Console mode CN Yellow Console mode Red Service mode COM Green RS232/RS485 activity   SR Red Service mode ER Yellow Error Pin assignments C20 C21 C22 C23 C24 C25 In the C22 converter user should use only RS232 or only RS485 interface of one port as they occupy the same internal bus of the device.