B&B Electronics Asynchronous to Synchronous Converter 2010 User's Manual
Contents
1. shows the switch locations with respect to other PC board components Configuration Switches Async Female Connector Sync Male Connector Figure 1 Switch locations on the 2010 PC board 3 1 SETTING INTERNAL SWITCHES The four switches shown in Figure 2 allow selection of character length and extended signaling rate These switches are located internally on the Model 2010 s PC board To access them use a small flathead screwdriver to pop open the Model 2010 s case as shown in Figure 3 DER OFF Figure 2 Close up of the Model 2010 s configuration switches 2010AS3297 Manual 3 B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 434 7094 SOn Ee Figure 3 Opening the Model 2010 s case with a small screwdriver 3 2 SWITCH SETTINGS All possible settings for the Model 2010 s configuration switches are presented in the following summary table and descriptions If you have additional questions regarding configuration contact B amp B Technical Support at 815 433 5100 SWITCH SUMMARY TABLE Position Function Factory Default Switch 1 1 Switch 1 2 Switch 1 3 Swicht4 NotUsed Character Length Character Length off 1O Switches SW1 1 and SW1 2 Character Length Switches SW1 1 and SW1 2 are set in combination to determine the character length for asynchronous data SW 1 1 Off On Off On SW 1 2 On 8 bit On 9 bit Off 10 b2. television reception which can be determined by disconnecting the RS 232 interface the user is encouraged to try to correct the interference by one or more of the following measures moving the computing equipment away from the receiver reorienting the receiving antenna and or plugging the receiving equipment into a different AC outlet such that the computing equipment and receiver are on different branches 1 2 SERVICE All warranty and non warranty repairs must be returned freight prepaid and insured to B amp B Electronics All returns must have a Return Materials Authorization number on the outside of the shipping container This number may be obtained from B amp B Electronics Customer Service at 815 433 5100 Packages received without an RMA number will not be accepted B amp B Electronics technical staff is available to answer any questions that might arise concerning the installation or use of your Model 2010 Technical Service hours 8 AM to 5PM CST Monday through Friday 2010AS3297 Manual 1 B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 434 7094 2 0 GENERAL INFORMATION Thank you for your purchase of this B amp B Electronics product This product has been thoroughly inspected and tested and is warranted for one year parts and labor If any questions or problems arise during installation or use of this product please do not hesitate to contact B amp B Electronics Technical Support a
3. directly into the DB 25 serial port of a DCE or connected via straight through cable 6 2010AS3297 Manual B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 434 7094 APPENDIX A SPECIFICATIONS Data Rates Up to 19 2 Kbps Clocking Provided by modem or multiplexer Buffer 4 bit RTS override feature empties buffers before dropping RTS making the Model 2010 usable in a polling environment Data Transmission Full or half duplex Connectors Async DB 25 female Sync DB 25 male Power No external power required uses power from data and control signals Temperature Range 0 60 C 32 140 F Altitude 0 15 000 feet Humidity Up to 95 non condensing Dimensions 3 2 x 2 0 x 0 75 Weight 2 oz 2010AS3297 Manual B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 434 7094 APPENDIX B ASYNCHRONOUS PORT CONNECTIONS CONFIGURED AS DCE Pin Name Description 1 FG Frame Ground connected straight to synchronous port 2 TXD Transmit Data to 2010 data input from asynchronous port input to the 2010 power supply 3 RXD Receive Data from 2010 data output to asynchronous port 4 RTS Request to Send to 2010 input to the 2010 power supply 5 CTS Clear to Send from 2010 connected straight through to synchronous port 6 DSR Data Set Ready from 2010 connected straight through to synchronous port 7 SG Signal Ground connected str
4. Not Recommended for New Installations Please contact Technical Support for more information Asynchronous to Synchronous Converter Model 2010 Documentation Number 2010AS3297 B amp B Electronics Mfg Co Inc 707 Dayton Road P O Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 433 5105 Internet http www bb elec com orders bb elec com support bb elec com B amp B Electronics September 1997 2010AS3297 Manual Cover Page B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 434 7094 Table of Contents 1 0 WARRANTY INFORMATION 1 1 RADIO AND TV INTERFERENCE 1 2 SERVICE 2 0 GENERAL INFORMATION 2 1 FEATURES 2 2 DESCRIPTION 3 0 CONFIGURATION 3 1 SETTING INTERNAL SWITCHES 3 2 SWITCH SETTINGS Switches SW1 1 and SW1 2 Character Length Switch SW1 3 Extended Signaling Rate ESR 4 0 INSTALLATION 4 1 CONNECTING THE ASYNCHRONOUS PORT 4 2 CONNECTING THE SYNCHRONOUS PORT APPENDIX A SPECIFICATIONS APPENDIX B ASYNCHRONOUS PORT CONNECTIONS CONFIGURED AS DCE APPENDIX C SYNCHRONOUS PORT CONNECTIONS CONFIGURED AS DTE APPENDIX D BLOCK DIAGRAM 2010AS3297 Manual Table of Contents B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 434 7094 1 0 WARRANTY INFORMATION B amp B Electronics warrants all Model 2010 components to be free from defects and will at our option repair or replace the product should it fail
5. aight through to synchronous port 8 CD Carrier Detect from 2010 connected straight through to synchronous port 9 DCV Connected straight through to synchronous port 10 DCV Connected straight through to synchronous port 20 DTR Data Terminal Ready to 2010 input to 2010 power supply 22 RI Ring Indicator from 2010 connected straight through to synchronous port 8 2010AS3297 Manual B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 434 7094 APPENDIX C SYNCHRONOUS PORT CONNECTIONS CONFIGURED AS DTE Pin Name Description 1 FG Frame Ground connected straight to asynchronous port 2 TXD Transmit Data from 2010 data output to synchronous port 3 RXD Receive Data to 2010 data input from the synchronous port input to 2010 power supply 4 RTS Request to Send from 2010 4 bit delay from asynchronous port 2010 waits 4 bits before dropping RTS to the synchronous port this facilitates use in a polling environment 5 CTS Clear to Send to 2010 connected straight through to asynchronous port 6 DSR Data Set Ready to 2010 connected straight through to asynchronous port 7 SG Signal Ground connected straight through to asynchronous port 8 CD Carrier Detect to 2010 connected straight through to asynchronous port 9 DCV Connected straight through to asynchronous port 10 DCV Connected straight through to asynchronous port 15 TXC Transmit clock to 2010 used to synchro
6. it Off 11 bit 2010AS3297 Manual B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 434 7094 Switch SW1 3 Extended Signaling Rate ESR The setting for switch 1 3 determines the range of variability the Model 2010 looks for in asynchronous data rates i e the actual variance from a given frequency level the Model 2010 will tolerate SW 1 3 Off 2 5 to 1 On 2 5 to 2 3 Switch SW1 4 Not Used 2010AS3297 Manual 5 B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 434 7094 4 0 INSTALLATION The Model 2010 is designed to be used in pairs with one unit installed between an asynchronous DTE and a synchronous DCE on either end of a synchronous communication link Figure 4 below illustrates a typical Model 2010 installation Async DTE Model 2010 Async DTE Sync DCE Figure 4 Typical Model 2010 application 4 1 CONNECTING THE ASYNCHRONOUS PORT The asynchronous port of the Model 2010 is a DB 25 female and is configured as DCE Therefore it wants to talk to a DTE device such as a terminal or PC The Model 2010 may be plugged directly into the DB 25 serial port of a DTE or connected via straight through cable 4 2 CONNECTING THE SYNCHRONOUS PORT The synchronous port of the Model 2010 is a DB 25 male and is configured as DTE Therefore it wants to talk to a DCE device such as a modem or multiplexer The Model 2010 may be plugged
7. nize data conversion from 2010 to synchronous port 17 RXC Receive clock to 2010 used to synchronize data conversion from 2010 to synchronous port 20 DTR Data Terminal Ready from 2010 input to 2010 power supply 22 RI Ring Indicator to 2010 connected straight through to asynchronous port 2010AS3297 Manual 9 B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 434 7094 APPENDIX D BLOCK DIAGRAM Synchronous Asynchronous 2 TD nsync to Sync Converter Phase Locked 13 TC Loop 4 RTS RTS 4 RTS Delay 26 7 0 2010AS3297 Manual 10 B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 434 7094
8. t 815 433 5100 2 1 FEATURES e Conforms to CCITT V 14 and V 22 standards e Adapts asynchronous terminals to synchronous modems and multiplexers Allows character lengths from 8 11 bits Requires no AC power or batteries Data rates to 19 2 Kbps Automatically adjusts synchronous data rates Miniature size Accepts external clocking Made in the USA 2 2 DESCRIPTION The Model 2010 converter gives asynchronous hardware access to the high speed capabilities of synchronous modems or multiplexers The Model 2010 plugs directly into the asynchronous RS 232 DTE port and connects via RS 232 cable to the synchronous DCE device Drawing power from the RS 232 interface the Model 2010 needs no AC power or batteries to operate and supports data rates to 19 2 Kbps Because the Model 2010 automatically adjusts the synchronous data rate to match the asynchronous DTE s output rate no data rate strapping is necessary The Model 2010 derives clocking externally from the clock of the synchronous DCE and imposes no limit on data block size Characters may be up to 11 bits long Measuring only 3 2 x 2 0 x 75 the Model 2010 is housed in a sturdy ABS plastic case It comes fully equipped with a DB 25 male connector and a DB 25 female connector 2 2010AS3297 Manual B amp B Electronics PO Box 1040 Ottawa IL 61350 PH 815 433 5100 FAX 815 434 7094 3 0 CONFIGURATION The Model 2010 is configured using four internal switches Figure 1
9. within one year from the first date of shipment This warranty is limited to defects in workmanship or materials and does not cover customer damage abuse or unauthorized modification If this product fails or does not perform as warranted your sole recourse shall be repair or replacement as described above Under no condition shall B amp B Electronics be liable for any damages incurred by the use of this product These damages include but are not limited to the following lost profits lost savings and incidental or consequential damages arising from the use of or inability to use this product B amp B Electronics specifically disclaims all other warranties expressed or implied and the installation or use of this product shall be deemed as user s acceptance of these terms 1 1 RADIO AND TV INTERFERENCE The Model 2010 generates and uses radio frequency energy and if not installed and used properly that is in strict accordance with the manufacturer s instructions may cause interference to radio and television reception The Model 2010 has been tested and found to comply with the limits for a Class A computing device in accordance with the specifications in Subpart J of Part 15 of FCC rules which are designed to provide reasonable protection from such interference in a commercial installation However there is no guarantee that interference will not occur in a particular installation If the Model 2010 does cause interference to radio or
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