B&B Electronics 232BSS4 User Manual

Size:
291.58 Kb
Download

Buffered Smart Switch

Model 232BSS4

Documentation Number: 232BSS4-2907

This product designed and manufactured in Ottawa, Illinois USA of domestic and imported parts by

707 Dayton Road --P.O. Box 1040--Ottawa, IL 61350 USA Phone (815)433-5100--General Fax (815)433-5105

Phone (815)433-5100--General Fax (815)433-5105Website:www.bb-elec.com

Sales e-mail:orders@bb-elec.com --Fax (815)433-5109Technical Support e-mail:support@bb.elec.com --Fax (815)433-5104

European Headquarters

B&B Electronics

Westlink Commercial Park --Oranmore, Co. Galway, Ireland

Phone +35391-792444--Fax +35391-792445

Website: www.bb-europe.com

Sales e-mail: sales@bb-europe.com

Technical Support e-mail: support@bb-europe.com

B&B Electronics Mfg. Co. Inc. --July 2007

Manual Documentation Number: 232BSS4-2907

B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100- Fax815-433-5104www.bb-elec.com B&B Electronics – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +35391-792444– Fax +35391-792445www.bb-europe.com

This document contains information that is proprietary and confidential to B&B Electronics Mfg. Co. Inc. The methods described herein are for the exclusive use of B&B Electronics authorized personnel. Any unauthorized use or dissemination of the information contained in the document is strictly forbidden.

B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100- Fax815-433-5104www.bb-elec.com B&B Electronics – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +35391-792444– Fax +35391-792445www.bb-europe.com

Table of Contents

 

 

CHAPTER 1 – INTRODUCTION............................................................

 

1

SPECIFICATIONS ........................................................................................

 

2

DEFAULT PARAMETERS ............................................................................

 

2

CHECKLIST................................................................................................

 

3

CHAPTER 2: OPERATION....................................................................

 

5

SYMBOLS AND CONVENTIONS...................................................................

 

5

LED INDICATORS......................................................................................

 

5

PORT CONFIGURATIONS ............................................................................

 

6

SMART SWITCH ONLY MODE....................................................................

 

7

AUTO SELECT/SMART SWITCH MODE.....................................................

 

14

USING THE232BSS4 AS ABUFFEREDSPLITTER/COMBINER...................

16

BACK TO BACK OPERATION (MUX/DEMUX) ............................................

 

17

CASCADING MULTIPLE SWITCHES ..........................................................

 

18

CHAPTER 3: PORT CONNECTIONS ................................................

 

21

DTE/DCE EXPLANATION .......................................................................

 

21

CHAPTER 4: SETUP SOFTWARE.....................................................

 

23

INTRODUCTION .......................................................................................

 

23

CONNECTION...........................................................................................

 

23

SOFTWARE INSTALLATION ......................................................................

 

24

SOFTWARE UNINSTALL ...........................................................................

 

24

SETUP TUTORIAL ....................................................................................

 

25

APPENDIX A: ASCII CHARACTER CODES.....................................

 

1

APPENDIX B: CABLE CHARTS...........................................................

 

1

CHART B.1. DTE (PC) DB25 CONNECTOR TO MASTER PORT..................

1

CHART B.2. DTE (PC) DB9 CONNECTOR TO MASTER PORT....................

1

CHART B.3. DCE (MODEM) DB25 CONNECTOR TO MASTER PORT .........

3

CHART B.4. DCE (MODEM) DB9 CONNECTOR TO MASTER PORT ...........

3

CHART B.5. PORTS A - D (DTE)TO DTE (PC) DB25 CONNECTOR..........

4

CHART B.6. PORTS A - D (DTE)TO DTE (PC) DB9 CONNECTOR............

4

CHART B.7. PORTS A - D (DTE)TO DCE (MODEM) DB25 CONNECTOR . 4

CHART B.8. PORTS A - D (DTE)TO DCE (MODEM) DB9 CONNECTOR ...

5

APPENDIX C: BLOCK DIAGRAM.......................................................

 

1

APPENDIX D: DECLARATION OF CONFORMITY.........................

1

Manual Documentation Number: 232BSS4-2907

Table of Contents

i

B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100- Fax815-433-5104www.bb-elec.com B&B Electronics – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +35391-792444– Fax +35391-792445www.bb-europe.com

ii

Documentation Number 232BSS4-2907m

B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100- Fax815-433-5104www.bb-elec.com B&B Electronics – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +35391-792444– Fax +35391-792445www.bb-europe.com

Chapter 1 – Introduction

The 232BSS4 provides communications to four devices from one serial port. Each port uses a dedicated UART and includes an 8K byte transmit buffer and an 8K byte receive buffer (16K bytes total). Each port can be independently configured for data rate, data format, and protocol. The Master port can send and receive data from one of the Slave ports while the other Slave ports continue to buffer data. The Master device can also broadcast the same message to two or more Slave ports at once.

The 232BSS4 can be configured to send data automatically to the Master port from each of the Slave ports when data is present with an optional preamble identifying the port. It can also provide two-waycommunications between the Master port and one Slave port at a time. Switching and control is done throughuser-definedthree or four character command strings. All control sequences are removed from the data stream, making the switch transparent to the Slave devices. The PC setup software provided walks the user through all possible parameters.

Switches can be cascaded to expand the 232BSS4 to more than four ports. Two units can also be used back-to-backto provide automatic connection between devices over a single data channel. LEDs on the 232BSS4 indicate when the unit is powered up and which port is selected to send data to the Master port.

Documentation Number 232BSS4-2907m

1

&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100- Fax815-433-5104www.bb-elec.com B&B Electronics – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +35391-792444– Fax +35391-792445www.bb-europe.com

Specifications

Model:

232BSS4

Interface:

RS-232asynchronous

Data Format:

7 or 8 data bits, even, odd, or no parity

 

(Master does not support 7 data bits with no

 

parity)

Data Rate:

1 stop bit (fixed)

1200 to 115.2 kbps

Flow Control:

Hardware(RTS/CTS) or None

Power Requirements:

+10 to +15 VDC @ 60 mA max.

Power Connector:

2.5 mm phone jack (+ tip)

Recommended Supply:

B&B Model 232PS (Sold separately)

Operating Temperature:0º to 70º C

Data Connectors:

Master DB25 female (DCE)

Dimensions:

Slaves DB9 male x 4 (DTE)

7.5 x 4.6 x 1.2 in. (19.0 x 11.7 x 3.0 cm)

Setup Software:

PC compatible,

Supplied Accessories:

Windows 95/98/NT/2000/XP/Vista

CDROM with Setup Program

 

Instruction Manual

Default Parameters

When shipped, the 232BSS4 comes set up for the following parameters:

Auto Select mode OFF

DTR NOT required to accept commands

THREE character command

Char1 = ESC (Decimal 27)

Char2 = STX (Decimal 2)

Char3 = “0” (Not Used)

Port Time = 1,000mS (not used)

Inactivity Time = 500mS (not used)

All ports 9600 Baud

All ports 8 Data Bits

All ports No Parity

All ports No Hardware Handshake required

Ports A-DNo preamble

Port A selected to Transmit & Receive on Power-up

Refer to the following sections of the manual for what each of these parameters means and how they can be changed.

2

Documentation Number 232BSS4-2907m

B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100- Fax815-433-5104www.bb-elec.com B&B Electronics – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +35391-792444– Fax +35391-792445www.bb-europe.com

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-232Buffered Smart Switch model 232BSS4

2.Instruction Manual

3.(2) 3.5" floppy disks

If any of the items above are not in the shipping carton contact the shipper immediately.

Documentation Number 232BSS4-2907m

3

&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100- Fax815-433-5104www.bb-elec.com B&B Electronics – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +35391-792444– Fax +35391-792445www.bb-europe.com

4

Documentation Number 232BSS4-2907m

B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100- Fax815-433-5104www.bb-elec.com B&B Electronics – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +35391-792444– Fax +35391-792445www.bb-europe.com

Chapter 2: OPERATION

Symbols and Conventions

Throughout this chapter of the manual, the following symbols and conventions will be used to clarify what type of data we are addressing.

Items enclosed in {brackets} will denote one byte.

A character in “quotes” will normally denote a printable ASCII character. A byte described in ALL CAPS is the ASCII description of a non-printablecharacter. The abbreviation dec will denote a decimal value. The lower case letter h will be used to show a Hex value.

Items in italics are optional items only used in certain configurations. The instances when these items are required will be explained in the text.

LED Indicators

The 232BSS4 has five LED indicators. The first, labeled “+12 VDC POWER” indicates that power is applied to the switch. The other four, labeled “PORT A” to “PORT D” indicate which Slave port is currently selected to transmit to the Master.

In Smart Switch Only mode, the port LEDs indicate which port was selected through the Select Port command. In Auto Select mode, the port LEDs indicate which port is currently sending to the Master. No indication is provided to display which Slave port is currently receiving from the Master.

Documentation Number 232BSS4-2907m

5

&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100- Fax815-433-5104www.bb-elec.com B&B Electronics – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +35391-792444– Fax +35391-792445www.bb-europe.com

Port Configurations

The 232BSS4 provides a dedicated UART to all five ports. This allows any port to be individually configured for baud rate, number of data bits, parity, and hardware (RTS/CTS) handshaking. Configuration of all the ports is done through the setup software.

Baud Rate:

Each port is configurable for the following baud rates: 1200 2400 4800 9600

19.2K

38.4K

57.6K

or 115.2 kbps

Data Bits:

Each port can be configured for Seven or Eight data bits. Note: If the Master and Slaves are set up differently, the port set for Seven data bits cannot transmit the eighth bit.

Parity:

Each port can be configured for Even, Odd, or No parity. Because the Master port uses a slightly different UART, it is not capable of receiving only seven bits, thus seven data bits with no parity is not allowed on the Master port. All other configurations are possible.

Stop bits:

Each port uses 1 stop bit. This value is currently fixed and can not be changed in the setup software.

Hardware(RTS/CTS) Handshaking:

Each port can be configured to hold data until its input handshake line goes high. On the Master port, pin four (RTS) would have to be held high by the host device in order for the 232BSS4 to send data. On the Slaves, pin eight (CTS) needs to be held high by the Slave device for the 232BSS4 to send data. The connected devices can prevent data from being sent from the 232BSS4 by holding their corresponding handshake lines low.

6

Documentation Number 232BSS4-2907m

B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100- Fax815-433-5104www.bb-elec.com B&B Electronics – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +35391-792444– Fax +35391-792445www.bb-europe.com