USB FTDI Converters Data Sheet
USB RS232 RS485 Converters (C37 & C38)
|
C37(EX) C38(EX)
|
Features
|
Specifications
| Redisage PN |
C37 |
C38 |
|
| Ports | UART | RS232/RS485 | |
| Expanders |
C37EX USB-A adapter for UART |
C38EX |
|
| 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 mm2 wire | |
| RS485 | N/A | 2 pin terminal block max. 2.5 mm2 wire | |
|
Transmission |
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 |
|
| 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
{{@221#bkmrk-%C2%A0-3}}
Compact USB Enclosure.{{@221#bkmrk-compact-usb-enclosur}}
55.4 x 20.3 x 11.85
Units: mm.
{{@168}}
SR-D