RS-232 to RS-422/485 converter with optical isolation

Moxa's serial-to-serial media converter can convert between RS-232, RS-422 and RS-485, which avoids compatibility issues that are often encountered when communicating between different serial interfaces.

Serial Interface

• Baud rate: 50 bps to 921.6 kbps (supports non-standard baud rates)
• Connector: Terminal block
• Isolation: 2 kV
• No. of Ports: 2
• Pull High/Low Resistor for RS-485: 1 kilo-ohm, 150 kilo-ohms
• RS-485 Data Direction Control: ADDC (automatic data direction control)
• Serial Standards: RS-232, RS-422, RS-485
• Terminator for RS-485: N/A, 120 ohms, 120 kilo-ohms

Serial Signals

• RS-232: TxD, RxD, RTS, CTS, GND
• RS-422: Tx+, Tx-, Rx+, Rx-, GND
• RS-485-4w: Tx+, Tx-, Rx+, Rx-, GND
• RS-485-2w: Data+, Data-, GND

Power Parameters

• Input Current: 150 mA @ 12 to 48 VDC
• Input Voltage: 12 to 48 VDC
• No. of Power Inputs: 1
• Overload Current Protection: Supported
• Power Connector: Terminal block (for DC models)

Physical Characteristics

• Housing: Metal
• Dimensions: 67 x 100.4 x 22 mm
• IP Rating: IP30
• Weight: 148 g
• Installation: DIN-rail mounting (with optional kit), Wall mounting

Environmental Limits

• Operating Temperature: -20 to 60°C 
• Storage Temperature (package included): -40 to 85°C
• Ambient Relative Humidity: 5 to 95% (non-condensing)

Standards and Certifications

• EMC: EN 55032/35
• EMI: CISPR 32, FCC Part 15B Class A
• EMS: IEC 61000-4-2 ESD: Contact: 4 kV; Air: 8 kV, IEC 61000-4-3 RS: 80 MHz to 1 GHz: 3 V/m, IEC 61000-4-4 EFT: Power: 1 kV; Signal: 0.5 kV, IEC 61000-4-5 Surge: Power: 1 kV, IEC 61000-4-6 CS: 150 kHz to 80 MHz: 3 V/m; Signal: 3 V/m, IEC 61000-4-8 PFMF
• Environmental Testing: IEC 60068-2-1, IEC 60068-2-2, IEC 60068-2-3
• Safety: UL 60950-1
• Vibration: IEC 60068-2-6

MTBF

• Time: 3.017.857 hrs
• Standards: Telcordia (Bellcore), GB