USER MANUAL - GMI
Contents
1. PATTON MODEL 2017A SPECIFICATIONS Transmission Line Range Interfaces Data Rates Isolation Connectors Operation Power Supply Temperature Range Altitude Humidity Dimensions Weight 19 to 26 AWG twisted pair 4 miles on 24 AWG twisted pair Asynchronous EIA RS 232 CCITT V 24 full duplex 20mA current loop DC to 115 200 bps 1500V RMS via opto isolators DB 25 male or female on RS 232 RJ 11 RJ 45 or terminal posts with strain relief for current loop side Transmitter is always active receiver can be configured as active or passive with a switch 9V DC at 500mA option of either 110V AC or 220V AC 60Hz 0 60 C 32 140 F 0 15 000 feet 0 5 000 meters 5 to 95 noncondensing 2 66 x 2 10 x 73 1 5 oz 10 APPENDIX C PATTON MODEL 2017A RS 232 PIN CONNECTIONS APPENDIX B PATTON MODEL 2017A BLOCK DIAGRAM SIGNAL PIN FG TD RD 1 3 GND V 5 6 8 20 7 9 ATANAS HAMOA UBLTIJAY NOISHHANOD SAT HONS Aare INGHMHOD HONOS INES ANVISNOO HOLIMS ON m di CxS ies SANTI ot JNGMHOD Wxdooooldo 91 5 GAIN EALLOV NOLLOGIIEKI I viva CHI MLV x INSHHOD 8 INVISNOO zx E Exe END NOLLOEIEA E XL X x2. asynchronous transmission over 4 wires Operates actively or passively receiver only transmitter is active Data rates up to 115 200 bps e Range to 4 miles on 24 AWG twisted pair Optically isolated and surge protected LEDs monitor transmit data receive data and power DB 25 male or female connectors on RS 232 side Twisted pair connection via terminal block with strain relief RJ 11 jack or RJ 45 jack External DCE DTE switch Made in the USA 2 2 DESCRIPTION The Model 2017A RS 232 to 20mA current loop converter lets an asynchronous RS 232 device communicate with a 20mA current loop device Equipped with an external power supply the Model 2017A supports data rates up to 115 200 bps The Model 2017A transmitter is active and must be connected to a passive receiver and the Model 2017A receiver can accommodate either a passive transmit ter or an active transmitter Operating full duplex the Model 2017A supports communication distances up to 4 miles over two unconditioned 24 AWG twisted pair To guard against data loss due to ground loops the Model 2017A is equipped with 1500 V RMS optical isolators on the line side The Patton Model 2017A connects directly to the RS 232 interface using a male or female DB 25 connector An external DCE DTE switch eliminates the need for a cross over cable on the RS 232 inter face The Model 2017A is manufactured in the USA 3 0 CONFIGURATION The Model 2017A is easy to use The o
3. sion reception If the Model 2017A does cause interference to radio or television reception which can be determined by disconnecting the power supply 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 so the computing equipment and receiver are on different branches 1 2 SERVICE All warranty and non warranty repairs must be returned freight pre paid 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 Service at 301 975 1007 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 2017A 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 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 contact Patton Electronics Customer Service at 301 975 1007 2 1 FEATURES Full duplex
4. 2 SETTING THE ACTIVE PASSIVE SWITCH The active passive switch is used to control the mode of the receiver it has no control over the transmitter since the transmitter is fixed in the active mode To configure your Model 2017A receiver you first need to deter mine whether your device will be active or passive If you are going to use the Model 2017A receiver to source current for the loop set the switch to the active position If the Model 2017A is to be used in an active loop set the Model 2017A receiver s active passive switch to passive WARNING Never connect two active devices together Your configuration must be active to passive or passive to active Active Active Passive Switch X e Passive Figure 3 The active passive switch 4 0 INSTALLATION The Model 2017A is simple to install After configuring the DCE DTE and active passive switches connect the two twisted pairs using the following instructions 41 TWISTED PAIR WIRING OVERVIEW Only one Model 2017A is needed for each RS 232 to 20mA cur rent loop circuit The Model 2017A is connected to the current loop device using two twisted pairs The pairs must be dry unconditioned metallic wire 19 26 AWG Best distance is achieved with smaller gauges i e thicker wires When you have completed wiring for your data circuit the pin connections should be as shown below XMT RCV Pair XMT c n RCV 2 0 S
5. USER MANUAL MODEL 2017A RS 232 to 20ma Current Loop Converter PATTON Ba flectronicsTo Part 07M2017A A SALES OFFICE Doct 073021UA 301 975 1000 Revised 10 15 93 TECHNICAL SUPPORT 301 975 1007 http www patton com 1 0 WARRANTY INFORMATION Patton Electronics warrants all Model 2017A 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 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 Model 2017A 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 televi
6. hield Optional G One Pair 4 4 4 TWISTED PAIR CONNECTION USING TERMINAL BLOCKS The terminal block strain relief version of the Model 2017A allows you to hook up the line side interface using bare wires The following instructions will tell you how to open the case connect the bare wires and fasten the strain relief collar in place 1 Open the unit by gently inserting a screw driver between the DB 25 connector and the lip of the plastic case see below You don t have to worry about breaking the plastic but be careful not to bend the D sub connector BST UIN ari Once the unit has been opened you will be able to see the termi nal blocks located at the rear of the PC board 2 Strip the outer insulation from the twisted pairs about one inch from the end T 3 Strip back the insulation on each of the 2 twisted pair wires about 25 4 Connect one pair of wires in the telephone cable to XMT Transmit on the terminal block being careful to observe the polarity The wire connected to XMT must be connected at the other end of the telephone line to RCV in the other unit and the wire connected to XMT must be connected at the other end of the telephone line to RCV in the other unit 5 Connect the other pair of wires in the telephone cable to RCV Receive again being careful to observe the polarity The wire con nected to RCV must be connected at the other end of the telephone l
7. ine to XMT in the other unit and the wire connected to RCV must be connected at the other end of the telephone line to XMT in the other unit 6 If there is a shield around the telephone cable it may be con nected to G on the terminal block To avoid ground loops we recom mend connecting the shield at the computer end only A ground wire is not necessary for proper operation of these units 7 When you finish connecting the wires to the terminal block the assembly should resemble the diagram below 8 Place the 2 halves of the strain relief assembly on either side of the telephone wire and press together very lightly Slide the assem bly so that it is about 2 inches from the terminal posts and press together firmly If your cable diameter is too small or too large for our strain relief please contact our technical support We have strain relief assemblies to accommodate most cable diameters 9 Insert the strain relief assembly with the wire going through it into the slot in the bottom half of the converter case and set it into the recess in the case If the telephone wire does not fit please contact our technical support We have gauges to accommodate most wire diameters 10 BEND the top half of the case as necessary to place it over the strain relief assembly Do
8. nly configuration neces sary for operation is the proper setting of two switches the external DCE DTE switch and the internal active passive switch 3 1 SETTING THE DCE DTE SWITCH Figure 1 shows the location of the DCE DTE switch on the PC board as well as the location of the terminal block and surge suppres sors Active passive J Switch J DCE DTE 0000D Switch RCV O Terminal CV gt o Block PWR Looe AC Adapter Oy Figure 1 The Model 2017A For your convenience the Model 2017A has an externally acces sible DCE DTE switch see figure 2 If the RS 232 device connected to the Model 2017A is a modem or multiplexer or is wired like one set the switch to DTE This setting causes the Model 2017A to behave like Data Terminal Equipment transmitting data on RS 232 pin 2 and receiving data on pin 3 DCE DTE Figure 2 The DCE DTE switch If the RS 232 device connected to the Model 2017A is a PC ter minal or host computer or is wired like one set the switch to DCE This setting causes the Model 2017A to behave like Data Communications Equipment transmitting data on RS 232 pin 3 and receiving data on pin 2 Remember The switch setting is always from the point of view of the Model 2017A not the connected equipment 3
9. not snap the case together yet 11 Insert one captive screw through a saddle washer then insert the captive screw with the washer on it through the hole in the DB 25 end of the case Snap that side of the case closed Repeat the process for the other side This completes the cable installation process 4 1 2 TWISTED PAIR CONNECTION USING MODULAR JACKS The modular version of the Model 2017A has an RJ 11 or RJ 45 jack mounted in the case These jacks are prewired for a standard TELCO wiring environment To be sure you have the right wiring use the table below as a guide RJ 11 SIGNAL RJ 45 SIGNAL eee GND foresee N C M RCV Dress GND an XMT RCV XMT rr XMT ee RCV E XMT GND RCV GND 8 N C Connection to ground is optional NOTE AT amp T standard modular color codes are as follows 1 Blue 1 Blue 2 Orange 2 Yellow 3 Black 3 Green 4 Red 4 Re 5 Green 5 Black 6 Yellow 6 White 7 Brown 8 Slate 4 2 COMPLETING THE INSTALLATION Once you have configured the unit for DTE or DCE and connected the twisted pair wires correctly simply plug the Model 2017A into the RS 232 data port Remember to insert and tighten the two captive connector screws The Model 2017A requires 9 volts of DC power with a trans former it will work with either 110V or 220V To order the power sup ply call Patton Electronics Customer Service at 301 975 1000 APPENDIX A
10. p x TXL viva i Lex Yaad WV NOISIANOO IHAG T N OXAG NI uod P Y ot 997 o pore ee HOLAS t BLICL EXT
Download Pdf Manuals
Related Search