Documentation Number 422OP41995 - pg. 1/1
Not Recommended for New Installations.
Please contact Technical Support for more information
.
B&B Electronics - Revised August 1993
This product designed and manufactured in USA of domestic and imported parts by
RS-422 to RS-422 Optical Isolator
Model 422OP4
The Model 422OP4 optically isolates four RS-422 lines. The isolator is
provided with a DB25 male connector on one side, and a DB25 female on
the other side. Signals pass through the isolator as follows:
This isolator can be used at data rates to 38.4k baud. Each side of
the isolator requires a 12VDC power supply at about 95 ma. Two
Model 422PS power supplies can be used for this purpose. Remote
power can be brought into each side of the isolator on pins 12 (GND)
and 11 (+12VDC). When remote power supplies are used, their
grounds must be isolated to maintain the isolation of the RS-422
signals.
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