Model 1225
Contents
1. UUUUUNUUUUUU lt Ack Busy gt BUSY Gs ACKNOWLEDGE e Terminal Switch O O q Block 3 1 SETTING THE BUSY ACKNOWLEDGE SWITCH For your convenience the Model 1225 has an externally accessible BUSY ACKNOWLEDGE switch see diagram below Set the switch on both transmitter and receiver as follows Ack Busy gt 1 The switch must be set the same way on both transmitter and receiver 2 Set the switch to ACKNOWLEDGE on both the transmitter and reeiver This should achieve good results in most applications 3 If you experience loss of information or other problems with both switches set to ACKNOWLEDGE set both switches to BUSY 4 0 INSTALLATION Once you have configured the Model 1225 transmitter and receiver you must connect the system This section will tell you how to connect the transmitter and receiver via twisted pair wire and how to connect the two devices to your system hardware 4 1 CONNECTING THE LINE SIDE Depending upon the type of units you have ordered you can connect twisted pair wire to the Model 1225 using internal terminal blocks with strain relief or modular jacks The following pages describe both kinds of twisted pair connection 4 1 1 TERMINAL BLOCK CONNECTION Terminal blocks are used to connect a single pair of bare wires to the Model 1225 The following instructions will tell you how to open the case connect the bare wires and2. lt x oc oO lt a x ot gs mg s Tg me uA m O z O E a lt x oc oO lt Q xX OL Oo ao ar 9 wn Qo cC O mi Qo o z O E a STROBE CONTROL DBZ CIRCUITS DBS SERIAL DB4 DBS TO DBS PARALLEL DB CONVERSION O o pd qm pe jo py DBS BUSY POWER Harga PHPP gt O gt T CNO SUPPLY DIFFERENTIAL RJ11 CONNECTOR RECEIVER TRANSFORMER CONTROL CIRCUITRY TO TRANSMITTER PATTON ELECTRONICS Title MODEL 1225 RECEIVER DB2S VERSION Size A Document Number 104022BA STROBE CONTROL DBI CIRCUITS DBZ DBS SERIAL DB4 TO DBS DBE PARALLEL DBF CONVERSION o ja pe jo py DBS 10 BUSY 11 10 11 12 13 POWER 18 SUPPLY HorTadminZ unrzomazia o 16 17 DIFFERE
3. fasten the strain relief collar in place 1 Open the unit by gently inserting a screwdriver 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 O TiN E IED After you have opened the unit s case you will find the terminal block mounted at the rear of the PC board The terminals are labeled S for signal and G for ground 5 2 Strip the outer insulation from the twisted pairs about one inch from the end 3 Strip back the insulation on each of the 2 wires about 25 GO FO 4 Insert the two wire data line to the center signal and shield ground terminal posts then tighten the screws OOOO CACO AOA NOTE Make sure the twisted pair cable between the transmitter and receiver is wired straight through as shown below SIGNAL S S SIGNAL GROUND G G GROUND 4 Place the 2 halves of the strain relief assembly on either side of the telephone wire and press together very lightly Slide the assembly so that it is about 2 inches from the terminal posts and press together firmly 5 Insert the strain relief assembly and the wire into the slot in the bottom half of the modem case Set it into the recess in the case lf the telephone wire doe
4. the parallel interface no AC power or batteries are required The Model 1225 always works in pairs A transmitter unit is plugged into the PC parallel port and a receiver unit is plugged into the output device parallel port The connection between them is serial and functions at speeds high enough to allow real time parallel communication between the two parallel devices The Model 1225 has two unique features that allow it to operate in a wide variety of parallel applications First the Model 1225 transmitter is able to send DC power down the line to the receiver in order to compensate for low power parallel printer interfaces Second the Model 1225 can be configured for either BUSY or ACKNOWLEDGE flow control methods The Model 1225 receiver is available with either a DB 25 or Centronics parallel interface transmitter has DB 25 only Line connection options are RJ 11 RJ 45 or terminal block with strain relief 3 3 0 CONFIGURATION The Model 1225 is designed to be easy to use There are no internal jumpers or DIP switches to set so there is no need to open the case to configure the unit you may need to open the case for wire connection refer to Section 4 0 The only configuration necessary for operation is proper setting of the external BUSY ACKNOWLEDGE switch The diagram below shows the location of the BUSY ACKNOWLEDGE switch on the PC board as well as the location of the terminal block
5. NTIAL RECEIVER TRANSFORMER CONTROL CIRCUITRY RJ11 CONNECTOR PATTON ELECTRONICS Title MODEL 1225 RECEIVER CENTRONICS VERSION Size A Document Number 104021BA Copyright 1997 Patton Electronics Company All Rights Reserved 14 13
6. USER MANUAL MODEL 1225 ParaLink Parallel Short Range Modem PATTON ElecironicsTo E TE ISO Ea nMi mite SALES OFFICE oc j Revised 9 12 97 301 975 1000 A TECHNICAL SUPPORT 301 975 1007 An ISO 9001 Certified Company http www patton com 1 0 WARRANTY INFORMATION Patton Electronics warrants all Model 1225 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 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 1225 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
7. be accepted Patton Electronics technical staff is also available to answer any questions that might arise concerning the installation or use of your Model 1225 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 Support at 301 975 1007 2 1 FEATURES Extends parallel communication to 2000 feet Requires no AC power or batteries Operates over a single twisted pair Allows devices to communicate in real time Can be configured for BUSY or ACKNOWLEDGE flow control methods Compatible with most printer sharing devices Transmits DC power over the line to compensate for low power parallel printer interfaces DB 25 or Centronics parallel connections RJ 11 RJ 45 or terminal block line connections 2 2 DESCRIPTION The Patton Electronics Model 1225 ParaLink parallel short range modem allows a PC and a parallel output device printer sharing switch etc to communicate at distances to 2000 feet over a single unconditioned twisted pair Supporting parallel data rates to 5 Kbytes per second serial rates to 40 Kbps the Model 1225 derives all necessary operating power from
8. elect aie HIGH Printe aP sbEBE GEE z ERBRRERE Common Return Ground 24 12 Paper End Aotive HIGH Printer ANUP rie ee eB bs b fo ke fo ob p gt Common Return Ground 23 Ue Busy eee MAN orinter s e RF 5 ER E Common Return Ground 22 10 Acknowledge Active LOW Printer Common Return Ground 21 9 Data BE 8 MSB Computer lt Common Return Ground 20 e Dala E Computer 2 g 7 Data Bit 6 Computer EKI ommon Return Ground 19 Bed Common Return Ground 18 e Dale BIS Computer JE 5 Data Bit4 Computer g z 4 Data Bit 3 Computer i 2 3 Data Bit 2 Computer Printer Error Fault Active LOW 2 Data Bit 1 LSB Computer 1 Data Strobe Active LOW Computer g amp o s a 4 to DIRECTION RECEIVER CENTRONICS DIRECTION Sa E ag Zag dt p poi u g gt a F 7 18 5 Volts Printer E 17 Chassis Ground Common I 16 Logic Ground Common de lg 15 de l 3 Printer Fault Active Low 14 pe 3 i 13 Select Active HIGH Printer 3 h g 12 Paper End Active HIGH Printer p 2 k 5 11 Busy Active HIGH Printer 5 A e 10 Acknowledge Active High Printer 5 9 Data Bit 8 MSB Computer a 8 Data Bit 7 Computer E 8 7 Data Bit 6 Computer g bp ge 6 Data Bit 5 Computer ge 5 Data Bit 4 Computer gt E a 4 Data Bit 3 Computer 3 Data Bit 2 Computer 2 Data Bit 1 LSB Computer 1 Data Strobe Active LOW Computer 11 12 APPENDIX C continued APPENDIX C continued
9. he BUSY ACKNOWLEDGE setting on both units and try again If you still do not obtain satisfactory results call Patton Technical Support at 301 975 1007 APPENDIX A PATTON MODEL 1225 SPECIFICATIONS Parallel Interface Power Range Transmission Line Interface Data Rate Interface Signals Dimensions Transmitter DB 25 male Receiver DB 25 male or female 36 pin Centronics male Interface powered no AC power or batteries needed 2 000 feet Half duplex over a single shielded or unshielded twisted pair 19 26 AWG RJ 11 RJ 45 or terminal block with strain relief 5 Kbytes per second on parallel interface 40 Kbps on serial line Data bits 0 7 ground Busy or Acknowledge externally switch selectable 2 67 x 2 10 x 0 74 10 APPENDIX B APPENDIX C PATTON MODEL 1225 BLOCK DIAGRAM PATTON MODEL 1225 PARALLEL PIN CONFIGURATIONS Transmitter SOURCE TRANSMITTER RECEIVER DB 25 SOURCE t Q gt hy By tj 4 Z tj q gt my gt my oa to g D Common Return Ground 25 13 S
10. interference to radio and television reception The Model 1225 is 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 1225 does cause interference to radio or television reception which can be determined by disconnecting the Model 1225 from both parallel interfaces 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 Patton 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 container This number may be obtained from Patton Electronics Technical Service at 301 975 1007 http www patton com or support Opatton com NOTE Packages received without an RMA number will not
11. nd receiver you are ready to connect the units to your parallel hardware The following steps explain this process 1 Plug the DB 25 male connector on the Model 1225 transmitter directly into the parallel port of the sending device which is normally a PC terminal host or similar DTE Note If you cannot plug the transmitter directly into the parallel port use a straight through DB 25 parallel cable of the shortest possible length We recommend 6 feet or less The Model 1225 receiver is available with either a DB 25 male or female or 36 pin Centronics male only connector The DB 25 version is designed for direct connection to various print servers and switches The Centronics version is designed for direct connection to the Centronics port of a parallel printer Note If you cannot plug the receiver directly into the port use a straight through cable of the shortest possible length We recommend 6 feet or less 4 3 OPERATING THE MODEL 1225 Once the transmitter and receiver have been connected to each other and to their corresponding parallel input and output devices you are ready to operate the units Make sure that the BUSY ACK switch on both units are placed on the same setting Otherwise the units should function transparently just like a cable There is no ON OFF switch If your Model 1225 s are not operating properly double check all of your connections and try again If you still experience problems change t
12. s not fit into the strain relief assembly call Patton Electronics Technical Support at 301 975 1007 We have strain relief collars to suit a variety of cable diameters O i ss Ol 6 BEND the top half of the case as necessary to place it over the strain relief assembly Do not snap the case together yet mu e 7 Insert one captive screw through a saddle washer and then insert the entire piece 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 installation process 4 1 2 RJ 11 amp RJ 45 LINE CONNECTION When using the RJ 11 or RJ 45 modular jacks install straight through cabling between the transmitter and receiver as shown below RJ 11 JACKS SIGNAL PIN COLOR COLOR PIN SIGNAL DATA 3 Greent Green 3 DATA GND 4 Red Red 4 GND RJ 45 JACKS SIGNAL PIN COLOR COLOR PIN SIGNAL DATA 4 Redt Red 4 DATA GND 5 Green Green 5 GND 1 Blue 1 Blue 2 Orange 2 Yellow 3 Black 3 Green 4 Red 4 Red 5 Green 5 Black 6 Yellow 6 White 7 Brown 8 Slate Standard AT amp T color codes yours may be different 8 4 2 CONNECTING TO PARALLEL HARDWARE After connecting the twisted pair line to the Model 1225 transmitter a
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