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

RS-232 to RS-422/485 converter

Serial interface
Baud rate
– 50 bps to 921.6 kbps (supports non-standard baud rates)
Connector
– Terminal block
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 transfer control) Ports
– 2
Pull high/low resistor for RS-485
– 1 kilo-ohm, 150 kilo-ohm
RS-485 data direction control
– ADDC (automatic data direction control)
Serial standards
– RS-232
– RS-422
– RS-485
Terminating resistor for RS-485
– N/A, 120 Ohm, 120 Kilo-Ohm

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

Performance parameters
Input current
– 50 to 85 mA @ 12 to 48 VDC
Input voltage
– 12 to 48 VDC
Number of current inputs
– 1
Overload protection
– Supports
Power connection
– Terminal block (for DC models)

Physical properties
Housing
– Metal
Dimensions
– 67 x 100,4 x 22 mm (2.64 x 3.93 x 0.87 in)
IP protection class
– IP30
Weight
– 148 g (0. 33 lb)33 lb)
Installation
– DIN rail mounting (with optional kit)
– Wall mounting

Ambient conditions
Operating temperature
– -20 to 60°C (-4 to 140°F)
Storage temperature (including packaging)
– -40 to 85°C (-40 to 185°F)
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 hours
Standards
– Telcordia (Bellcore), GB