# Data Sheet ## Passive RS232 RS485 Converters (C14)
**C14** [](https://doc.redisage.com/uploads/images/gallery/2024-03/pol-pm-c14-pasywny-mini-konwerter-rs232-na-rs485-83-1.png) | **Features** - Interface feature: RS232C/RS485 standard interface compatible with EIA TIA - Electric interface: RS232 end DB9 hole connector RS485 end terminal with connection pole - Passive, anti-static - Economical type - Working mode: asynchronous half-duplex differential transmission - Transmission media: twisted - pair - Transmission rate: 300-115.2 kbps - External discharge dimension: 56.3 mm x 33.5 mm x 15.8 mm - Working circumstances: -25°C to 70°C - Relative humidity: 5% to 95% - Transmission distance: 1,200 m (RS485 end); 5 m (RS232 end) - 2 years warranty - Customization of OEM is welcomed |
**Redisage PN** | **C14** | |
Converter ports | 1 x RS232 & 1 x RS485 | |
Power | Voltage | passive |
Power | < 1 W | |
Frame ground protection | yes | |
Serial interface | RS232 | TxD, RxD, GND |
RS485 | A, B | |
Baud rate | up to 115200 bps | |
LED indicators | N/A | |
RS485 termination | N/A | |
Connector | RS232 | DB9 male connector |
RS485 | 3-pin terminal block max. 2.5 mm2 wire | |
Power | N/A | |
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 | compact | |
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 |
**DB9 Female (PIN)** | **RS-232C Interface Signal** |
1 | Protective |
2 | RXD SIN |
3 | TXD SOUT |
4 | DTR |
5 | GND |
6 | DSR |
7 | RTS |
8 | CTS |
9 | RI |
**DB9 Male (PIN)** | **Data Output** | **RS-485 Half Duplex** |
1 | T/R+ | RS485 (A+) |
2 | T/R- | RS485 (B-) |
3 | GND | Ground wire |
4 | VCC | 9 VDC |