A52-DB9F RS-232/422/485 converter, 2 kV isolation

Transio A52 devices are intelligent bidirectional RS-232 to RS-422/485 converters.
Data flow control for both RS-422 and RS-485, LED indicators for power and signal states, surge protection.

Serial connection issues in industrial environments

Serial communication and reliability can be adversely affected in industrial environments. The wiring associated with serial communication devices may be surrounded by power lines, motors, or equipment that produce static electricity. In these cases, serial devices can be damaged by sudden waves produced by these types of equipment.
In these situations, the solution is to use surge protection using TVSS (Transient Voltage Surge Supression).

When two serial devices are directly connected, but separated by a long distance, unbalanced ground voltage can cause serious damage. Unbalanced ground voltage between two serial ports forms a "ground loop" and introduces a large current between the two devices in series.
In this situation, the solution is to use isolation protection to provide full isolation for both communication ports.

What is a surge protector?
Surges are high-amplitude pulses that last only a few millionths of a second. They can be caused by equipment with high power draws, power lines, short circuits or large motors. A suppressor has the ability to instantly absorb the high energy, so it can prevent damage to connected devices.