Documentation Number 232MSS22901 Manual
Cover Page
B&B Electronics Mfg Co Inc 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
B&B Electronics Ltd Westlink Commercial Park Oranmore, Galway, Ireland Ph +353 91-792444 Fax +353 91-792445
Mini Smart Switch
CE
Model 232MSS2
Documentation Number 232MSS22901
This product designed and manufactured
of domestic and imported parts by
International Headquarters
B&B Electronics Mfg. Co. Inc.
707 Dayton Road -- P.O. Box 1040 -- Ottawa, IL 61350 USA
Phone (815) 433-5100 -- General Fax (815) 433-5105
Home Page: www.bb-elec.com
Sales e-mail:
orders@bb-elec.com
-- Fax (815) 433-5109
Technical Support e-mail:
support@bb.elec.com
-- Fax (815) 433-5104
European Headquarters
B&B Electronics Ltd.
Westlink Commercial Park, Oranmore, Co. Galway, Ireland
Phone +353 91-792444 -- Fax +353 91-792445
Home Page: www.bb-europe.com
Sales e-mail:
orders@bb-europe.com
Technical Support e-mail:
support@bb-europe.com
1995 B&B Electronics --- Revised September 2001
B&B Electronics RESERVED. No part of this publication may be reproduced or transmitted in any form or
by any means, electronic or mechanical, including photography, recording, or any information storage and
retrieval system without written consent. Information in this manual is subject to change without notice, and
does not represent a commitment on the part of B&B Electronics.
B&B Electronics shall not be liable for incidental or consequential damages resulting from the furnishing,
performance, or use of this manual.
All brand names used in this manual are the registered trademarks of their respective owners. The use of
trademarks or other designations in this publication is for reference purposes only and does not constitute an
endorsement by the trademark holder.
Documentation Number 232MSS22901 Manual
Table of Contents
i
B&B Electronics Mfg Co Inc 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
B&B Electronics Ltd Westlink Commercial Park Oranmore, Galway, Ireland Ph +353 91-792444 Fax +353 91-792445
TABLE OF CONTENTS
Chapter 1: INTRODUCTION .............................................. 1
Checklist ................................................................................ 2
Chapter 2: SETUP ............................................................... 3
Port Configuration.................................................................. 4
Serial Data Configuration....................................................... 5
Smart Switch Operation......................................................... 5
Programming the Second Character ..................................... 7
Binary File Transfer ............................................................... 7
Smart Switch/Port Combiner Mode ....................................... 8
Specifications....................................................................... 11
Chapter 3: SOFTWARE ................................................... 12
Introduction .......................................................................... 12
Windows SSwitch ................................................................ 12
Installation............................................................................ 12
DOS SSTSR ........................................................................ 13
Parameters .......................................................................... 15
Default Values ..................................................................... 16
Help Screen ......................................................................... 16
Un-Install.............................................................................. 16
Selecting Ports..................................................................... 16
Hot Key Method ................................................................... 17
Command Line Method ....................................................... 18
Appendix A: ASCII Character Codes................................. 1
Appendix B: Cable Charts ................................................. 2
Chart 1. IBM PC DB25 Connector to Master Port ................ 2
Chart 2. IBM PC DB9 Connector to Master Port .................. 2
Chart 3. Modem DB25 Connector to Master Port................. 3
Chart 4. IBM PC DB25 Connector to Ports A - D (DTE)....... 3
Chart 5. IBM PC DB25 Connector to Ports A - D (DCE) ...... 4
Chart 6. IBM PC DB9 Connector to Ports A - D (DTE)......... 4
Chart 7. IBM PC DB9 Connector to Ports A - D (DCE) ........ 5
Chart 8. IBM PC DB25 Connector to Ports A - D (DCE) ...... 5
Chart 9. IBM PC DB9 Connector to Ports A - D (DCE) ........ 6
APPENDIX C: Declaration of Conformity ............................ 1
Documentation Number 232MSS22901 Manual
1
B&B Electronics Mfg Co Inc 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
B&B Electronics Ltd Westlink Commercial Park Oranmore, Galway, Ireland Ph +353 91-792444 Fax +353 91-792445
Chapter 1: INTRODUCTION
The RS-232 Four Port Mini Smart Switch/Port Combiner, Model
232MSS2, allows one RS-232 host device to connect to as many as
four RS-232 devices. The switch can be controlled in two different
ways. The first way is referred to as smart switch mode. In this
mode, the switch is controlled by sending a programmable preamble
code to the "Master" port of the 232MSS2. The other way the switch
can be controlled is referred to as port combiner mode. In port
combiner mode, a slave port can gain access to the master port by
asserting a handshake line. If none of the slave ports have their
handshake line asserted, the switch can be controlled using the
preamble code.
The master port can be configured as a DTE or DCE port by an
internal switch setting. If the master port is configured as a DTE port,
the four slave ports will become DCE ports. The 232MSS2 supports
the following signals: TD, RD, RTS, and CTS.
The 232MSS2 has an enhanced mode which offers special
timer features. The timer features can be used to prevent slave
devices from receiving preamble commands, inadvertently switching
from binary/graphic file transfers, and inactive slave devices from
holding control of the master port.
The 232MSS2 will work with baud rates from 1200 to 115,200
bps; 7 or 8 data bits; even, odd or no parity; and 1 or 2 stop bits
(7,N,1 is not allowed).
NOTE: The data format and rates mentioned are used to
switch the 232MSS2. The communication between the
devices can use any format or data rate.
There are four LED's on the 232MSS2 to indicate which port is
connected to the master port. The master port has a DB-25S female
connector and the slave ports have DB-9S female connectors. The
232MSS2 requires 12Vdc at 10ma. which is provided through a
2.5mm power jack.
Documentation Number 232MSS22901 Manual
B&B Electronics Mfg Co Inc 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
B&B Electronics Ltd Westlink Commercial Park Oranmore, Galway, Ireland Ph +353 91-792444 Fax +353 91-792445
2
Checklist
Examine the shipping carton and contents for physical damage.
If damage is found, file a claim with the shipper immediately.
The following equipment should be in the shipping carton:
1. RS-232 Mini Smart Switch
2. Instruction Manual
3. (1) 3.5" floppy disk
If any of the items above are not in the shipping carton contact
the shipper immediately.
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