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RS232 Optical Isolator Standard
3-wire

Part: AN232ISO
$29.75 In stock
 
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This port-powered RS232 optical isolator is a reliable and effective protection against all surges, static electricity, lightning strikes and ground loops. It effectively protects your RS232 line and your equipment and data communication against data loss and equipment damage.

This particular RS232 isolator is a 3-line isolator which protects RXD, TXD and GND with up to 1500V constant voltage, 600W surge protection and 15KV ESD protection.

No external power is required for this RS232 isolator since it is port powered from the TXD signal, alternatively RTS and DTR, so no externall power supply or flow control of any kind is needed.

A standard DB9 female connector at one RS232 side of the isolator and a standard DB9 male connector at the other RS232 side allows easy connection of any standard serial cable.

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SPECIFICATIONS
Model number AN232ISO
Lines protected TXD, RXD, GND
Baud rate 300 - 57,600bps
Power Port-powered from
RS232 (RTS, DTR, TXD)
Current draw Less than 15mA
Interface PC side DB9 female connector
Optical isolation 1500V
ESD protection 1500W / 600W/ms
Working mode Asynchronous, full transparant
Standards EIA/TIA RS-232C / RS232
Operating Temp. -40°C to 85 °C
Operating humidity 5% To 95% - No Condensation
Dimensions 2.47" x 1.33" x 0.70"
(62.8 mm x 33.8 mm x 17.8 mm)
Warranty 5-year Limited Warranty
rs232 isolator

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rs232 isolator back rs232 isolator




Need a High-Speed
8-Wire RS232 Isolator?


RS232 Optical Isolator Pro

Price: $29.75
Part: AN232ISO
In stock




Reviews for this product
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Date Added: 08/22/2011 by Kathleen Mabry
5 of 5 Stars5 of 5 Stars
We are using this isolator to isolate our water treatment system sensors from a PC located about 100...


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Date Added: 07/13/2011 by Brian Baker
5 of 5 Stars5 of 5 Stars
I bought this rs232 optical isolator to isolate my computer from a temperature probe located 10 feet...


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Date Added: 07/12/2010 by Mike Johnson
4 of 5 Stars4 of 5 Stars
Works fine, easy to use.


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Quick Tip!

Why use a RS232 Isolator?

The main reason for using a RS232 Isolator is to protect your RS232 devices against high-voltage spikes and surges. The RS232 isolator does this by sending the RS232 signals through optical diodes, also called opto-couplers. The RS232 isolator opto-couplers convert the RS232 signals to light signals, this way there is no actual electrical connectivity between the two isolator RS232 interfaces, only light signals are transferred inside the RS232 ioloator opto-couplers, which gives a very effective protection against all voltage spikes. But not only does the RS232 isolator protect against voltage-spikes, a good RS232 isolator also protects against ground-loops which usually are lower voltage surges over a prolonged time period. However, if you have a long-range RS232 communication line, for example between two buildings, a standard RS232 isolator might not be sufficient protection for example in case the line gets struck by lightning. In that case you might need a RS232 surge suppressor instead of a RS232 isolator. Compared to the RS232 isolator the surge suppressor works more like a fuse, it has an internal gas-tube which blows and at the same time leads the over-voltage to a proper ground. The standard RS232 isolator is however usually recommended in most cases for indoor use. The RS232 isolator effectively protects all devices, equipment and data lines against most common voltage spikes and ground loops.
One last thing to mention about this RS232 isolator is that it is port-powered, this is a convenient feature because in most cases it allows you to simply insert the RS232 isolator between your existing cables. This particular RS232 isolator draws its power from the RS232 interface without interfering with the actual communication signals. By the way, this RS232 isolator isolates and protects three signals: TX, RX and GND, some RS232 isolator units only protects TX and RX and other RS232 isolator units protects all eight serial signals.



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