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

RS-232 to RS-422/485 converter with optical isolation, -40 to 85°C operating temperature

Serial Interface
Baudrate
– 50 bps to 921.6 kbps (supports non-standard baudrates)
Connector
– Terminal block
Isolation
– 2 kV (I models)
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 (2.64 x 3.93 x 0.87 in)
IP Rating
– IP30
Weight
– 148 g (0.33 lb)
Installation
– DIN-rail mounting (with optional kit)
– Wall mounting

Environmental Limits
Operating Temperature
– -40 to 85°C (-40 to 185°F)
Storage Temperature (package included)
– -40 to 85°C (-40 to 185°F)
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