Industrial Isolator Specification Sheet
232OPDRI-0907 - 1/1 
© 2006 by B&B Electronics. All rights reserved. 
International Headquarters:  707 Dayton Road PO Box 1040 Ottawa, IL 61350 USA 
815-433-5100 Fax 433-5104 www.bb-elec.com orders@bb-elec.com support@bb-elec.com 
European Headquarters: Westlink Commercial Park Oranmore  Co. Galway Ireland
+353 91 792444 Fax +353 91 792445 
www.bb-europe.com orders@bb-europe.com support@bb-europe.com 
Integrate
– Expand
– Simplify      B&B ELECTRONICS PRODUCT INFORMATION
Model: 232OPDRI 
RS-232 Industrial Isolator 
DIN Rail Mountable 
Overview
The 232OPDRi is a DIN rail mountable RS-232 optical isolator. It isolates four RS-232 lines at 2KV, two lines in each 
direction. The signals can be data or handshakes. Four LEDs show data traffic and one LED indicates power. The 
connections are made through a DB9 male connector on the DTE side and a DB9 female connector on the DCE side. 
The 232OPDR requires a single 10 to 48 VDC power supply, which is isolated from both sides of the converter. 
The 232OPDRi is ideal for the industrial environment. The 2000 volt isolation protects your computer from ground 
loops and induced currents caused by lightning, heavy equipment turning on and off, or the serial cable running close to 
high power lines. The isolation also helps eliminate ground loops caused by different potentials on the grounds. The 
isolated power supply allows you to hook up almost any DC power to this converter. 
  The 232OPDRi can also be used as a repeater to extend the RS-232 signal beyond 50 feet (15 meters). The signal 
lines can handle either two data lines in each direction, or one data line and one handshake line in each direction. 
3
2
7
8
5
3
2
7
8
5
2000 VDC Isolation
+10 to +48 VDC
Power Circuit
Isolated
DCE
DB9 
Female
DTE
DB9
Male
Specifications
Dimensions:  4.9 x 4.2 x 1.3 in (12.4 x 10.5 x 3.2 cm) 
Temperature Range:  -40 to +80 °C (-40 to +176 °F) 
Supply Voltage:  +10 to 48VDC (+/- 20%) @ 960mW 
Data Rates:  Up to 115.2K bps 
Connectors:  DB9 male, DB9 female 
Isolation:  3-way isolation, 2000V RMS 
   input/output/power supply 
Approvals:  UL, cUL, Class1 Div2 
DECLARATION OF CONFORMITY 
Manufacturer’s Name:  B&B Electronics Manufacturing Company 
Manufacturer’s Address:  P.O. Box 1040 
  707 Dayton Road 
  Ottawa, IL 61350 USA 
Model Numbers:  232OPDRi 
Description:  RS-232 Industrial Isolator    
Type:  Light industrial ITE equipment 
Application of Council Directive:  89/336/EEC 
Standards: EN 55022 
 EN 61000-6-1 
  EN 61000 (-4-2, -4-3, -4-4, -4-5, -4-6, -4-8, -4-11) 
Michael J. Fahrion, Director of Engineering 

