Related Manuals for Omega Engineering DIN-190 Series
Summary of Contents for Omega Engineering DIN-190 Series
- Page 1 User’ s Guide MADE IN Shop online at omega.com e-mail: info@omega.com For latest product manuals: omegamanual.info DIN-190 and DIN-192 Series Converter Boxes...
- Page 2 Toll Free in United Kingdom: 0800-488-488 e-mail: sales@omega.co.uk It is the policy of OMEGA Engineering, Inc. to comply with all worldwide safety and EMC/EMI regulations that apply. OMEGA is constantly pursuing certification of its products to the European New Approach Directives. OMEGA will add the CE mark to every appropriate device upon certification.
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Page 3: Users Manual
DIN-191 and DIN-192 SERIES CONVERTER BOXES USERS MANUAL R E V I S E D : 1 0 - 3 0 - 0 0 Omega Engineering One Omega Drive P O Box 4047 Stamford, CT 06907 Phone: 1-800-DAS-IEEE Fax: 203-359-7990 e-mail: das@omega.com... -
Page 4: General Description
3 DIN-191 & DIN-192 USERS MANUAL GENERAL DESCRIPTION The DIN-191 and DIN-192 series converter boxes convert RS-232 communications signal levels to the correct electrical signals required by RS-485. The RS-485 communications standard is recommended when many modules, or other addressable devices, must be connected to a host computer over long distances. -
Page 5: Specifications
DIN-191 & DIN-192 USERS MANUAL 4 SPECIFICATIONS Max common mode voltage: 500Vrms, 60s duration. Baud rates: 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 (Dip -switch selectable). Temperature range (operating & storage): -25 to +70°C. Relative humidity: 0 - 95% noncondensing. Warranty: 12 months on workmanship and materials. - Page 6 5 DIN-191 & DIN-192 USERS MANUAL The DIN-191 female RS-232 connector utilizes five connections: Transmit Receive Ground Data Set Ready (DSR) Clear To Send (CTS) Both the Data Set Ready (DSR) input pin #6 and Clear To Send (CTS) input pin #8 are internally biased to their active state thru a 330 to +5Vdc.
- Page 7 isolated RS-485 input data lines will be re-amplified and retransmitted on the RS-485 OUT data lines. Figure 1B Connections for DIN-192. BAUD RATE The DIN-191 and DIN-192 series converters contain a 10-position DIP switch located on the bottom of each unit. The DIP switch is used to select the correct communications baud rate and must be set to the same value as the devices connected to the RS-485 data lines.
- Page 8 7 DIN-191 & DIN-192 USERS MANUAL Figure 2. RS-485 biasing & termination resistors. RS-485 TERMINATION & BIASING SETTINGS Proper termination and biasing of any RS-485 based system can be performed by properly enabling the correct resistors inside each DIN-191 or DIN-192. Figures 3.0 and 4.0 show the location of the jumpers on the printed circuit board.
- Page 9 FIGURE 4. DIN-192 jumper locations. FACTORY RS-485 TERMINATION SETTINGS Each DIN-191 and DIN-192 contains internal pin strips for enabling the internal termination and biasing resistors. Each pc board is clearly marked with the jumper designators adjacent to each row of pins. The jumper designators are +1K, 220 and -1K.
- Page 10 OMEGA is a registered trademark of OMEGA ENGINEERING, INC. © Copyright 2005 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied, reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without the prior written consent of OMEGA ENGINEERING, INC.
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Page 11: Data Acquisition
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