Data Sheets

USB FTDI Converters Data Sheet
USB RS232 RS485 Converters (C37 & C38) 

 

 

 

 

 C37(EX) C38(EX) 

 

 

 

 Features 

 

 USB to UART or RS232/RS485 converter 

 ESD protection for the RS485 data line 

 Transmission speed up to 115200 bps 

 Tx, Rx and power LED indicators 

 Operating temperatures: -40°C to +75°C 

 Compact size 

 Dimensions: 55.4x20.3x11.85 mm 

 3 years warranty 

 Customization of OEM is welcomed 

 

 

 

 

 

 Specifications 

 

 

 

 Redisage PN 

 

 C37 

 

 

 C38 

 

 

 

 

 

 Ports 

 UART 

 RS232/RS485 

 

 

 Expanders 

 

 C37EX 

 USB-A adapter for UART 

 

 

 C38EX DSUB-A adapter for RS232 

 

 

 

 Power 

  < 1 W 

 

 

 Frame ground protection 

 no 

 

 

 

 Baud rate 

 

 

 up to 115200 bps 

 

 

 

 LED indicators 

 communication Tx, Rx and power 

 

 

 RS485 termination 

 120 ohm Manually Enabled 

 

 

 Connector 

 RS232/UART 

 3-pin terminal block max. 2.5 mm 2 wire 

 

 

 RS485 

 N/A 

 2-pin terminal block max. 2.5 mm 2 wire 

 

 

 

 Transmission distance 

 

 

 RS232/UART 

 

 

 max. 15 m at 115.2 kbps 

 

 

 

 

 RS485 

 

 

 N/A 

 

 

 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 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 

 

 

 

 Variants 

 C37 - UART 3V3 USB FTDI Converter 

 

 C38 - RS232/RS485 USB FTDI Converter 

 

 Jumpers 

 

 

 

 

 Jumper name 

 C38 jumpers 

 

 

 

 

 E 

 

 Echo Disable 

 

 

 

 

 A 

 

 Pull Up 523 ohm - A Line (RS485) 

 

 

 B 

 Pull Down 523 ohm - B Line (RS485) 

 

 

 T 

 120 ohm Termination 

 

 

 

 Pin assignments 

 

 

 

 

 Pin No. 

 

 C37 

 C38 

 

 

 

 

 

 1 

 

 NC 

 Tx RS232 

 

 

 

 2 

 

 VCC 3V3 

 Rx RS232 

 

 

 3 

 GND 

 GND 

 

 

 4 

 Tx UART 3V3 

 A RS485 

 

 

 5 

 Rx UART 3V3 

 B RS485 

 

 

 

 Accessories 

 

 

 

 C37(EX) 

 C38(EX) 

 

 

 

 

 

 

 

 

 

 Enclosure dimensions 

 Compact USB Enclosure 55.4 x 20.3 x 11.85 Units: mm 

 

 Additional notes 

 

 

 

 Related information and links 

 

 

 

 

 Ordering information 

 Accessories 

 Similar products 

 

 

 

 Products family sample photo 

 

 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

USB FTDI ESP32 Programmer Data Sheet
USB RS232 RS485 Converters (P03) 

 ESP32 USB Programmer for P01 and P02 Open IoT and IIoT Gateways. It can be used to connect a gateway to a PC via a microUSB and a TAG-Connect cable.  

 

 

 

 

 

 

 

 Features 

 

 USB to TAG-Connect converter 

 ESD protection 

 Tx, Rx, RTS, DTR and power LED indicators 

 Operating temperatures: -40°C to +75°C 

 Compact size 

 3 years warranty 

 Customization of OEM is welcomed 

 

 

 

 

 

 

 

 Variants 

 P03 USB Programmer for ESP32 

 

 Enclosure dimensions 

 Compact USB Enclosure 55.4 x 20.3 x 11.85 Units: mm 

 

 Additional notes 

 

 

 

 Related information and links 

 

 

 

 

 Ordering information 

 Accessories 

 Similar products 

 

 

 

 Products family sample photo 

 

 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