Transio A52/A53 Series

Features and Benefits

  • ADDC™ (Automatic Data Direction Control) RS-485 data control
  • Automatic baudrate detection
  • RS-422 hardware flow control: CTS, RTS signals
  • LED indicators for power and signal status
  • RS-485 multidrop operation, up to 32 nodes
  • 2 kV isolation protection (A53)
  • Built-in 120-ohm termination resistors


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The A52 and A53 are general RS-232 to RS-422/485 converters designed for users who need to extend RS-232 transmission distance and increase networking capability.


Serial Inteface
Connector 10-pin RJ45
No. of Ports 2
Serial Standard RS-232, RS-422, RS-485
Flow Control RTS/CTS
Isolation A53 Series: 2 kV
RS-485 Data Direction Control ADDC® (automatic data direction control)
Serial Signals
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 A52 Series: 170 mA @ 9 VDC
A53 Series: 195 mA @ 9 VDC
Input Voltage 9 to 30 VDC
No. of Power Inputs 1
Overload Current Protection Supported
Power Consumption A52 Series: 170 mA @ 9 VDC
A53 Series: 195 mA @ 9 VDC
Source of Input Power Power input jack
Physical Characteristics
Housing Plastic
IP Rating IP30
Dimensions 90 x 60 x 21 mm (3.54 x 2.36 x 0.83 in)
Weight 85 g (0.19 lb)
Installation Desktop
Environmental Limits
Operating Temperature 0 to 55°C (32 to 131°F)
Storage Temperature (package included) -20 to 75°C (-4 to 167°F)
Ambient Relative Humidity 5 to 95% (non-condensing)
Standard and Cerifications
EMC EN 55032/24
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 60068-2-14
IEC 60068-2-2
IEC 60068-2-3
Safety EN 60950-1, IEC 60950-1
Vibration IEC 60068-2-6
Time 1,870,854 hrs
Standards Telcordia (Bellcore), GB
Warranty Period 5 years
Details See