I. Summary
With adoption of advanced photoelectric isolation technology, RS-232 Serial Interface
Photoelectric Isolator, also named Serial Isolator, can offer best protection for RS-232 serial
interface devices with elimination of damages possibly caused up by grounding
loop voltage, surge, lighting induction, hot plug, etc.
Normally, RS-232 damages are hardware damages of communication devices, for which
more than 90% of the reasons are bad circumstances including non-grounding at both ends
of the devices, several surges, lighting induction, static interference, hot plug,
electromagnetic interference, etc. For example, if device A is connected to device B with
RS-232 interface, when there is a voltage margin of above 50V between their grounding
wires, the communication will gets unstable. RS-232 Serial Interface Photoelectric Isolator
can tolerate a peak voltage margin of transient 2,500 Vrms for 500VDC on a continuous
base, and at the same time, it is able to absorb static and electromagnetic interference for
protection of RS-232 devices.
As the electric and grounding loop between the two ends of RS-232 devices are completely
blocked by the advanced isolation technology adopted by us, therefore, the electric signal
from one end has been turned into optical signal for transmission to the other end, and the
optical received by the other end will be converted back into electric signal again. In this
way, the communication devices are well protected from the interference and damages
possibly caused by power grounding loop or surge, therefore, obvious improvement of the
reliability and stability of the communication system are achieved.
Our products are now being widely used in the applications of point-to-point RS-232
communication system, UNIX multi-user system, monitor control system, program control
exchanger charging terminal, satellite receiver, ATM etc for the industries of electricity,
insurance, telecommunications, railway, post office, financial, banking, securities, program
controlling, etc.
