Serial Isolator, Port-powered, RS-232 to RS-232, Mini-size,
Photoelectric Isolator with RS-232 interface
With adoption of advanced photoelectric isolation technology,
UT-211 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
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,
various of 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 UT-211 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 auto teller machine etc for the
industries of electricity, insurance, telecommunications, railway,
post office, financial, banking, securities, program controlling,
Interface: conforming to EIA RS-232 and CCITT V2.4 asynchronic
Connector: DB9 connectors for both ends.
Transmission mode: asynchronic, full duplex, full transparent.
Isolation voltage: 2,500Vrms impulse or 500 VDC continues.
Transmission rate: 300BPS-57,600BPS.
Power: from RS-232 interface (TXD, RTS or DTR)
Working environments: -40 degrees to 85 degrees,relative humidity
5% to 95%