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USER MANUAL - GMI

1. 20 Remote Digital Loopback RDL 21 External Clock 24 Test Mode TM 25 CCITT V 35 Interface M 34 Male M TM Test Mode P Transmitted Data A Transmitted Data B Terminal Timing A W Terminal Timing B Transmit Timing A A Transmit Timing B Local Analog Loopback LAL L Remote Digital Loopback RDL N Receive Data A R Receive Data B T Receive Timing A V Receive Timing B X 10 APPENDIX D BLOCK DIAGRAM
2. multiplexers and CSU DSUs Most often the DTE device will be RS 232 and the DCE device will be V 35 Therefore the default DCE DTE setting for the Model 2020 is RS 232 DCE to V 35 DTE based on how the Model 2020 sees its own orientation For exam ple if the Model 2020 sees its own RS 232 port as DCE it will want to plug into an RS 232 DTE device such as a terminal If you need to reverse the DCE DTE orientation of the Model 2020 so that the RS 232 port is DTE and the V 35 port is DCE follow the step by step instructions below note it is not possible to configure the Model 2020 2020N so that both ports are DTE or DCE 3 1 1 OPENING THE CASE The DCE DTE strap on the Model 2020 2020N is located on the PC board To access the PC board you will need to open the plastic case 1 Simply insert a small flathead screwdriver or similar tool between the DB 25 connector and the lip of the case as shown in Figure 1 below RS 232 Interface Figure 1 Inserting the screwdriver 4 2 Gently twist the screwdriver to pop the case open as shown in 5 To reverse the DCE DTE orientation pull the entire strap out Figure 2 below Be careful not to damage the case or con of its socket and rotate it 180 degrees Then plug it back into nector as you twist the screw driver the socket You will see that the arrows on top now point in the opposite directions showing the new DCE DTE orientation of the Model 2020 6 When you re done reali
3. or female on V 35 side at the end of 6 ft cable Model 2020N RS 232 Male or Female with M 34 male or female on V 35 side None required Uses power from interface data and control signals 0 60 degrees C 32 140 degrees F 0 15 000 feet 0 5 000 meters 5 to 95 noncondensing Model 2020 2 66 L x 2 10 H x 0 73 W 6 76cmL x 5 33cmH x 1 85cmW Model 2020N 2 40 L x 1 73 H x 0 89 W 6 10cmL x 4 39cmH x 2 26cmW Model 2020 14 oz including cable and connectors Model 2020N 2 2 oz APPENDIX B V 35 INTERFACE STANDARDS CCITT V 35 ElA 530 INTERFACE DB 25 APPENDIX C RS 232 INTERFACE STANDARDS Transmit Data B 14 1 FG Frame Ground Transmit Clock A 15 2 Transmit Data A Receive Data B 16 3 Receive Data A Receive Clock A 17 4 RTS Request to Send Local Analog Loopback LAL 18 5 CTS Clear to Send 6 DSR Data Set Ready Data Term Ready DTR 20 a 7 eee igi 4 arrier Detect Remote Digital Loopback RDL 21 en 9 Receive Clock B External Clock A 24 11 External Clock B Test Mode TM 25 12 Transmit Clock B RS 232C V 24 INTERFACE DB 25 1 FG Frame Ground 2 TD Transmit Data 3 RD Receive Data 4 RTS Request to Send 5 CTS Clear to Send 6 DSR Data Set Ready 7 SG Signal Ground 8 DCD Data Carrier Detect 9 External Power Transmit Clock 15 Receive Clock 17 Local Analog Loopback LAL 18 Data Term Ready DTR
4. 0N require no external AC power or batteries to operate and supports data rates to 384 Kbps Operating full or half duplex the Model 2020 passes all necessary clocking and control signals and is transparent to protocol The Model 2020 connects directly to the synchronous RS 232 interface using a male or female DB 25 connector A male or female M 34 connector at the end of an integral 6 ft cable plugs into the V 35 device The Model 2020 25 substitutes a male or female DB 25 on the V 35 interface The Model 2020N house both DB 25 and M 34 connec tors within the same enclosure An internal DCE DTE strap allows the user to configure the Model 2020 2020N as DCE to DTE or DTE to DCE In most cases this eliminates the need for special crossover cables Housed in an ultra miniature case measuring only 2 66 x 2 10 x 0 73 the Model 2020 fits easily into tight locations The Model 2020N measures a tiny 3 20 L x 2 10 H x 0 90 W 3 0 CONFIGURATION The Model 2020 2020N is designed to be easy to use In most cases you will not need to configure the Model 2020 2020N in any way just plug it in and go The Model 2020 is transparent to protocol including data rate and clocking method the only configuration you may need to do is for DTE DCE orientation This procedure is described below 3 1 SETTING DCE DTE ORIENTATION The Model 2020 2020N installs between DTE devices such as terminals and host computers and DCE devices such as modems
5. 232 interface of the Model 2020 2020N must be configured as DCE Sync Terminal DTE V 35 Modem DCE Figure 4 A Common RS 232 DTE to V 35 DCE Installation 4 2 CONNECTING A V 35 DTE TO AN RS 232 DCE Figure 5 below illustrates proper connection of a V 35 DTE to an RS 232 DCE using the Model 2020 The RS 232 interface of the Model 2020 2020N must be configured as DTE V 35 Mini Computer DTE m Sync Modem DCE 2 mm TT tH ER a mes Figure 5 A common V 35 DTE to RS 232 DCE installation 4 3 CONNECTING THE MODEL 2020 25 The Model 2020 25 is connected the same way as the standard Model 2020 with the exception that the V 35 interface has a DB 25 connector instead of an M 34 connector The DB 25 carries the same signals as the M 34 but is pinned according to the RS 530 Standard Please refer to Appendix B for specific pin out information 7 APPENDIX A MODEL 2020 AND 2020N SPECIFICATIONS Interfaces Data Rates Transmission Mode Protocol Clocking Connectors Power Supply Temperature Range Altitude Humidity Dimensions Weight EIA RS 232 ITU CCITT V 24 to ITU CCITT V 35 ElA RS 530 0 384 Kbps Synchronous full or half duplex Transparent to protocol Set by connected devices All Versions DB 25 male or female on RS 232 side Model 2020 M 34 male or female on V 35 side at the end of 6 ft cable Model 2020 25 DB 25 male
6. USER MANUAL MODEL 2020 and MODEL 2020N Interface Powered RS 232 to V 35 Converters PE PATTON M ElectronicsTo ISCH Part 07M2020 E SALES OFFICE Doc 077011UE 301 975 1000 Revised 08 16 99 TECHNICAL SUPPORT 301 975 1007 An 180 9001 http www patton com Certified Company 1 0 WARRANTY INFORMATION Patton Electronics warrants all Model 2020 and 2020N compo nents 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 ship ment This warranty is limited to defects in workmanship or materials and does not cover customer damage abuse or unauthorized modifi cation 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 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 consequen tial 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 Models 2020 and 2020N generate and use radio frequency energy and if not installed and used properly that is in strict accor dance wit
7. container This number may be obtained from Patton Electronics Technical Support 301 975 1007 http www patton com or sup port 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 Model 2020 or 2020N Technical Support 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 warrant ed for One Year parts and labor If any questions or problems arise during installation or use of this product please do not hesitate to con tact Patton Electronics Technical Support at 301 975 1007 2 1 FEATURES e Bi directionally converts synchronous RS 232 to V 35 e Data rates to 384 Kbps full or half duplex e Transparent to protocol e No AC power or batteries required DCE DTE strap selectable DB 25 and M 34 connectors with integral 6 ft cable Model 2020 e Dual DB 25 connectors with integral 6ft cable Model 2020 25 DB 25 and M 34 connectors in one plastic enclosure Model 2020N e Circuitry housed in ultra miniature case e Made in the USA 2 2 DESCRIPTION The Model 2020 and 2020N RS 232 to V 35 converters let a synchronous RS 232 device communicate bi directionally with a syn chronous V 35 device The Model 2020 202
8. gn the case halves don t forget the captive screws and saddle washers and snap them back together RS 232 Interface Figure 2 Popping open the case 3 Once you have opened the case of the Model 2020 2020N you will see the DCE DTE strap located on the PC board in the position shown in Figure 3 below The DCE DTE strap is oriented closest to the RS 232 interface DCE DTE RS 232 Strap G I en Interface t oce DTE Figure 3 DCE DTE strap orientation on PC board 4 The arrows on top of the strap indicate the orientation of the Model 2020 s ports For example if the DCE arrow is point ing toward the DB 25 connector then the Model 2020 2020N s RS 232 port is configured as a DCE and will connect to a RS 232 DTE port The arrow pointing toward the cable at the rear of the PC board shows the orientation of the Model 2020 s V 35 port 4 0 INSTALLATION After you have configured the DCE DTE strap all you need to do is plug the Model 2020 or 2020N into the proper device ports Figures 4 and 5 show how to intstall the Model 2020 2020N NOTE The diagrams below show the Model 2020 in the installed application If you are using a Model 2020N connect the RS 232 interface directly to the RS 232 equipment and connect the V 35 interface to the V 35 interface 4 1 CONNECTING AN RS 232 DTE TO A V 35 DCE Figure 4 below illustrates proper connection of an RS 232 DTE to a V 35 DCE using the Model 2020 The RS
9. h the manufacturer s instructions may cause interference to radio and television reception The Model 2020 2020N has been test ed 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 guaran tee that interference will not occur in a particular installation If the Model 2020 2020N does cause interference to radio or television reception which can be determined by disconnecting the RS 232 or V 35 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 re orienting 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 and the Low Voltage Directive LVD of the Union European EU A Certificate of Compliance is available by contacting Technical Support 1 3 SERVICE All warranty and non warranty 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

USER MANUAL - GMI

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