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Patton electronic 2085 manual

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Table of contents for the manual

  • Page 1

    USER MANUAL SALES OFFICE (301) 975-1000 TECHNICAL SUPPORT (301) 975-1007 http://www .patton.com Part# 07M2085-D Doc# 047033UD Revised 4/15/97 MODEL 2085 High Speed RS-232 to RS-485 Interface Converter CERTIFIED An ISO-9001 Certified Company[...]

  • Page 2

    1.0 W ARRANTY INFORMA TION Patton Electronics warrants all Model 2085 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 [...]

  • Page 3

    2.0 GENERAL INFORMA TION Thank you for your purchase of this Patton Electronics product. This product has been thoroughly inspected and tested and is warranted for One Y ear parts and labor . If any questions or problems arise during installation or use of this product, please do not hesitate to contact Patton Electronics T echnical Support at (301[...]

  • Page 4

    3.1 SETTING THE DCE/DTE SWITCH For your convenience, the Model 2085 has an externally accessible DCE/DTE switch. If the device connected to the Model 2085 is a modem or multiplexer (or is wired like one), set the switch to “DTE”. This setting causes the Model 2085 to behave like Data T erminal Equipment and transmit data on pin 2. If the device[...]

  • Page 5

    3.4 CONFIGURA TION SWITCH APPLICA TIONS The switch settings generally needed to configure the Model 2085 for various applications are shown in the table below . Note: Do not change switch settings until you have carefully read Section 3.3. S1-4: Echo Mode The setting for switch S1-4 determines whether the Model 2085 echoes data back to the transmit[...]

  • Page 6

    4.0 INST ALLA TION Once you have properly set the configuration switches, you are ready to connect the Model 2085 to your system. This section tells you how to properly connect the Model 2085 to the RS-485 and RS-232 interfaces, and how to operate the Model 2085. 4.1 CONNECTION TO THE RS-485 INTERF ACE T o function properly , the Model 2085 must ha[...]

  • Page 7

    4.1.3 4-WIRE CONNECTION USING TERMINAL BLOCKS If your RS-485 application requires you to connect two pairs of bare wires to the Model 2085, you will need to open the case to access the terminal blocks. The following instructions will tell you how to open the case, connect the bare wires to the terminal blocks, and fasten the strain relief collar in[...]

  • Page 8

    9. Insert the strain relief assembly with the wire going through it into the slot in the bottom half of the modem case and set it into the recess in the case. 10. BEND the top half of the case as necessary to place it over the strain relief assembly . Do not snap the case together yet. 1 1. Insert one captive screw through a saddle washer and then [...]

  • Page 9

    4.2.2 DAISY CHAIN TOPOLOGY Using a daisy chain topology , you may connect several Model 2085s together in a master/slave arrangement. Maximum distance between the units will vary based upon the number of drops, data rate, wire gauge, etc. Call T echnical Support for specific distance estimates. Figure 8 (below) shows how to wire the two-pair cables[...]

  • Page 10

    APPENDIX B P A TTON MODEL 2085 RS-232 PIN CONFIGURA TIONS Copyright © Patton Electronics Company All Rights Reserved 1- (FG) Frame Ground 2- (TD) T ransmit Data T o Model 2085 3- (RD) Receive Data From Model 2085 4- (RTS) Request to Send T o Model 2085 5- (CTS) Clear to Send From Model 2085 6- (DSR) Data Set Ready From Model 2085 7- (SG) Signal Gr[...]