USER MANUAL
Contents
1. 975 1007 2 1 FEATURES DCE to DCE connection Interface powered No external power supply required Dual 512 bit adaptive buffers Data rates up to 2 304 Mbps Available with male or female connectors and integral 6 foot cables Compact Easy to install Four models available 3004 ECB V 35 V 35 compatible Male or female 34 pin V 35 connectors on 6 foot cables 3004 ECB 530 RS 422 V 11 compatible Male or female 25 pin D sub connectors on 6 foot cables 3004 ECB V 36 RS 422 V 11 compatible Male or female 37 pin D sub connectors on 6 foot cables 3004 ECB X 21 RS 422 V 11 compatible Male or female 15 pin D sub connectors on 6 foot cables 2 2 DESCRIPTION The Model 3004 ECB series are self powered elastic buffers which enable the connection of two independently clocked DCEs When two internally clocked devices exchange data and cannot be clocked externally the 3004 ECB is used as an interface between them The Model 3004 ECB utilizes two buffers to reduce errors caused by clock drift between the two DCEs All models employ adaptive buffer control Internal buffers will automatically adjust to almost full in the case of underflow or to almost empty in case of overflow All models perform the necessary cross over wiring connections between the two DCEs Installation is easy and straightforward 3 0 OPERATION The receive clock of DCE 2 clocks data into buffer A The transmit clock of DCE 1 clocks data o2. R Receive B I Indication B S Signal Timing B
3. recourse shall be repair or replacement as described above Under no condition shall Patton 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 Patton Electronics specifically disclaims all other warranties expressed or implied and the installation or use of this product shall be deemed an acceptance of these terms by the user 1 1 RADIO AND TV INTERFERENCE The Model 3004 ECB 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 3004 ECB 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 ina commercial installation However there is no guarantee that interference will not occur in a particular installation If the Model 3004 ECB does cause interference to radio or television reception which can be determined by disconnecting the unit 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 re orien
4. USER MANUAL MODEL 3004 ECB Series Miniature Self Powered Elastic Clock Buffers PE PATTON E Elecironics To ISo Part 07M3004ECB A SALES OFFICE Doc 011031UA 301 975 1000 Revised 09 22 00 TECHNICAL SUPPORT 301 975 1007 http www patton com Rt li An ISO 9001 Certified Company TABLE OF CONTENTS SECTION PAGE 1 0 Warranty Information cece ees eeeeeeeeneeeeeneeereneeeeenaeeeee 2 1 1 Radio and TV Interference 1 2 CE Notice 1 3 Service Information 2 0 General Information cccceccsessseccccceeceeceseesssseeeeeeeeeeeeneeaes 4 2 1 Features 2 2 Description 3 0 Operation nisi he ee ee i el 5 4 0 Installation siisii eieaa i 6 Appendix A Specifications 2 eceeeseeeeesneeeeeneeeteneeeeenneeeeaaes 7 Appendix B V 35 Connector and Pin Assignments 00 9 Appendix C RS 530 Connector and Pin Assignments 10 Appendix D RS 449 Connector and Pin Assignments 11 Appendix E X 21 Connector and Pin Assignments 5 12 1 0 WARRANTY INFORMATION Patton Electronics warrants all Model 3004 ECB components to be free from defects and will at our option repair or replace the product should it fail 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
5. e Male or female 34 pin V 35 connectors on 6 foot cables 3004 ECB 530 RS 422 V 11 compatible Male or female 25 pin D sub connectors on 6 foot cables 3004 ECB V 36 RS 422 V 11 compatible Male or female 37 pin D sub connectors on 6 foot cables 3004 ECB X 21 RS 422 V 11 compatible Male or female 15 pin D sub connectors on 6 foot cables Two adaptive centering 512 bit buffers APPENDIX A MODEL 3004 ECB SERIES TECHNICAL SPECIFICATIONS continued Derived from data clock and control signals No external power required 0 60 C 32 140 F humidity up to 95 non condensing CE APPENDIX B PATTON ELECTRONICS MODEL 3004 ECB V 35 INTERFACE PIN ASSIGNMENT V 35 Interface Signal FG Frame Ground SGND Signal Ground RTS Request to Send CTS Clear to Send DSR Data Set Ready CD Carrier Detect DTR Data Terminal Ready TD Transmit Data A RD Receive Data A TD Transmit Data B RD Receive Data B XTC External Transmit Clock A RC Receive Timing A XTC External Transmit Clock B RC Receive Timing B TC Transmit Timing A TC Transmit Timing B APPENDIX C PATTON ELECTRONICS MODEL 3004 ECB 530 INTERFACE PIN ASSIGNMENT RS 530 Interface Pin Description OONDAARWDY DB 25 Connector Signal FG Frame Ground TD Transmit Data A RD Receive Data A RTS Request to Send A CTS Clear to Send A DSR Data Set Ready A SGND Signal Ground CD Carrie
6. r Detect A RC Receive Timing B CD Carrier Detect B XTC External Transmit Clock B TC Transmit Timing B CTS Clear to Send B TD Transmit Data B TC Transmit Timing A RD Receive Data B RC Receive Timing A RTS Request to Send B DTR Data Terminal Ready A DSR Data Set Ready B DTR Data Terminal Ready B XTC External Transmit Clock A APPENDIX D PATTON ELECTRONICS MODEL 3004 ECB V 36 INTERFACE PIN ASSIGNMENT RS 449 Interface Pin Description DB 37 Connector Signal FG Frame Ground TD Transmit Data A TC Transmit Timing A RD Receive Data A RTS Request to Send A RC Receive Timing A CTS Clear to Send A DM Data Mode A DSR A TR Terminal Ready A DTR A RR Receiver Ready A CD A XTC External Transmit Clock A SGND Signal Ground SGND Signal Ground TD Transmit Data B TC Transmit Timing B RD Receive Data B RTS Request to Send B RC Receive Timing B CTS Clear to Send B SGND Signal Ground DM Data Mode B DSR B TR Terminal Ready B DTR B RR Receiver Ready B CD B XTC External Transmit Clock B APPENDIX E PATTON ELECTRONICS MODEL 3004 ECB X 21 INTERFACE PIN ASSIGNMENT X 21 Interface Pin Description DB 15 Connector Signal FG Frame Ground TD Transmit Data A C Control A R Receive A Indication A S Signal Timing A SGND Signal Ground T Transmit B C Control B
7. ting 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 CE NOTICE The CE symbol on your Patton Electronics equipment indicates that it is in compliance with the Electromagnetic Compatibility EMC directive of the Union European EU A Certificate of Compliance is available by contacting Technical Support 1 3 SERVICE All warranty and nonwarranty repairs must be returned freight prepaid and insured to Patton Electronics All returns must have a Return Materials Authorization number on the outside of the shipping container This number may be obtained from Patton Electronics Technical Services at telephone 301 975 1007 email support patton com web address http www patton com NOTE Packages received without an RMA number will not be accepted Patton Electronics technical staff is also available to answer any questions that might arise concerning the installation or use of your Patton Model 3004 ECB Technical Service hours 8AM to 5PM EST Monday through Friday 2 0 GENERAL INFORMATION Thank you for your purchase of this Patton 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 Patton Electronics Technical Services at 301
8. ut of buffer A The receive clock of DCE 1 clocks data into buffer B The transmit clock of DCE 2 clocks data out of buffer B For the X 21 interface both receive clock and transmit clock of each side are connected to the X 21 DCE s Signal Timing DCE 1 J1 J EH a ren i a oe i ES bse ws lt lt D gt D gt D gt D gt e a lt SG FG INTERNAL CLOCK INTERNAL CLOCK 2 DCE 2 gt TC TD RC RD CD DSR RTS CTS Note The buffers introduce transmission delay into the data paths between the DCEs The control signals however are not buffered and are just wired through as shown This should be considered when using the 3004 ECB in applications where the data and control signals must have the same delay 4 0 INSTALLATION Installation is easy and straightforward Simply connect each port of the 3004 ECB to one of the DCEs There are no jumpers or switches to configure men _ DCE 3004 ECB DCE APPENDIX A MODEL 3004 ECB SERIES TECHNICAL SPECIFICATIONS Connection Wiring Transmission format Data rate Functional interface Electrical Physical Interface DCE to DCE Buffering DCE to DCE Powering Internal cross over wiring Environment Synchronous transparent to protocol Up to 2 304 Mbps Mark 3004 ECB V 35 CCITT V 35 3004 ECB 530 EIA RS 530 3004 ECB V 36 EIA RS 449 3004 ECB X21 CCITT X 21 3004 ECB V 35 V 35 compatibl
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