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.

Port-powered RS-232 to RS-422/485 converter with 15 KV serial ESD protection, DB9 connector on the RS-422/485 side and 2.5 KV optical isolation

Serial interface
Connector
– DB9 connector
Number of ports
– 2
Serial standards
– RS-232
– RS-422
– RS-485
Isolation
– 2 kV
RS-485 data direction control
– ADDC (automatic data direction control)
Terminating resistor for RS-485
– N/A, 120 Ohm, 120 Kilo-Ohm
Baud rate
– 300 bps to 115.2 kbps

Serial signals
RS-422
– Tx+, Tx-, Rx+, Rx-, GND
RS-485-4w
– Tx+, Tx-, Rx+, Rx-, GND
RS-485-2w
– Data+, Data-, GND
RS-232
– TxD, RxD, GND

Performance parameters
Input current
– 20 mA @ 5 to 12 VDC
Input voltage
– 5 to 12 VDC
Number of current inputs
– 1
Overload current protection
– Supports
Source of input power
– Current input socket

Physical properties
Housing
– Top cover made of plastic, Metal base plate
IP protection class
– IP30
Dimensions
– 42 x 91 x 23.6 mm (1.65 x 3.58 x 0.93 in)
Weight
– 50 g (0.11 lb)
Installation
– Desktop

Environmental conditions
Operating temperature
– 0 to 60°C (32 to 140°F)
Storage temperature (including packaging)
– -20 to 75°C (-4 to 167°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
– 2,781.161 hours
Standards
– Telcordia (Bellcore), GB