Document No. 232UDS4300 - pg. 1/1
© 1993 B&B Electronics -- Rev i s ed Nov ember 2000
This product designed and manuf actured in USA of domesti c and imported part s by
Universal Serial Data Splitter CE
CECE
CE
Model 232UDS
The Universal Serial Data Splitter can be connected so that any two RS-232
devices c an be connected to any one RS- 232 device. Nine pins are suppor ted: pins
1-8 and 20. Pins 1 and 7 on all three connectors are connected to each other at all
times. The other pins must be programmed for proper direction of data flow.
To program the data flow direction requires some knowledge of
how your ports are wired. If you are trying to connect two devices
to one DCE port (such as a printer) switches 8, 6, and 2 should be on
and the other switches off. This OR's the data on pins 3, 5, 6, and 8
together and sends it out the main connec tor, and allows the data on
pins 2, 4, and 20 to flow the other way. If you are trying to connect
two devices to one DTE port (suc h as a modem) s witches 7, 5, 4 and
3 should be on and the other switches off. This OR's the data on pins
2, 4, and 20 together and sends it out the main connector, and allows
the data on pins 3, 5, 6, and 8 to flow the other way.
If you are not sur e which type of port y ou have try both way s and
see which way works. Try switches 2, 6 and 8 first and then try
switches 3, 4, 5, and 7 on. Be sure that both devices on the side
connectors are configured the same- both DTE or both DCE. If they
are not the same you may need a null modem to rev erse one side or
the other.
DECLARATION OF CONFORMITY
Manufacturer’s Name: B&B Elec tronics Manufacturing Company
Manufacturer’s Address: P.O. Box 1040
707 Dayton Road
Ottawa, IL 61350 USA
Model Numbers: 232UDS
Description: Universal Serial Data Splitter
Type: Light industri al ITE equipment
Application of Council Directive: 89/336/EEC
Standards: EN 50082-1 (IEC 801-2, IEC 801-3, IEC 801-4)
EN 50081-1 (EN 55022, IEC 1000-4-2)
EN 61000 (-4-2, -4-3, -4-4, -4-5, -4-6, -4-8, -4-11)
ENV 50204
EN 55024
Michael J. Fahrion, Director of Engineering
