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TABLE OF CONTENTS

Section

Page

1.0 Warranty Information .............................................................2

1.1 Radio and TV Interference
1.2. CE Notice
1.3 Service 

2.0 General Information ...............................................................4

2.1 Features
2.2 Description

3.0 Configuration..........................................................................5

3.1 Front Card Configuration

3.1.1  Switch Setting - Modem A
3.1.2  Switch Setting - Modem B

3.2 Rear Card Configuration

3.2.1 Rear Card Strap Settings

4.0 Installation ...........................................................................14

4.1 The Model 1000R16 Rack Chassis

4.1.1  The Rack Power Supply

4.2 Installing the Model 1004ARC into the Chassis
4.3  RS-232 Connection
4.4  Twisted Pair Connection

4.4.1  Point-to Point Twisted Pair Connection
4.4.2  Multipoint Twisted Pair Connection

5.0 Operation .............................................................................19

5.1 LED Status Monitors
5.2 Power-Up

Appendix A - Specifications........................................................20

Appendix B - Cable Recommendations......................................21

Appendix C - Factory Replacement Parts ..................................22

Appendix D - Interface Pin Assignments ....................................23

1.0  WARRANTY INFORMATION

Patton Electronics warrants all Model 2085RC 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 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 Model 2085RC 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 2085RC 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 in a
commercial installation. However, there is no guarantee that interfer-
ence will not occur in a particular installation. If the Model 2085RC
does cause interference to radio or television reception, which can be
determined by turning the power off or disconnecting the       RS-232
interface, the user is encouraged to try to correct the interference by
one 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 com-
puting equipment and receiver are on different branches).
In the event the user detects intermittent or continuous product mal-
function due to nearby high power transmitting radio frequency equip-
ment, the user is strongly advised to take the following steps: use only
data cables with an external outer shield bonded to a metal or metal-
ized connector; and, configure the rear card as shown in section 3.2.1
of this manual.

Summary of Contents for 2085RC

Page 1: ...RS 232 to RS 485 Converter Dual Port Rack Mount Card SALES OFFICE 301 975 1000 TECHNICAL SUPPORT 301 975 1007 http www patton com Part 07M2085RC B Doc 047052UB Revised 05 11 99 C E R T I F I E D An IS...

Page 2: ...ges 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 de...

Page 3: ...evice drops in a polling environ ment Passes transmit receive data one control signal each direction Variable high low impedance settings Carrier can be set as constantly on or controlled by RTS Able...

Page 4: ...criptions of each switch s function SWITCH SET S1 DIP switch S1 is used to configure receive impedance RTS CTS delay carrier control operation and echo enable disable The summary table below shows the...

Page 5: ...Modes Switches S2 3 and S2 4 are set together to determine whether the Model 2085RC is in 2 wire or 4 wire operating mode Note 2 wire mode is half duplex only S1 2 S1 3 Setting On On 2 wire mode Off...

Page 6: ...ch S4 is used to configure transmit impedance and 2 wire 4 wire operations The summary table below shows the factory default settings for switch S4 Following the summary table is a detailed descriptio...

Page 7: ...e In the connected closed position the strap links RJ 11 pins 1 and 6 RJ 45 pins 2 and 7 to frame ground These pins can be used as connections for the twisted pair cable shield In the open disconnecte...

Page 8: ...000R16 RACK CHASSIS The Model 1000R16 Rack Chassis Figure 5 has card slots plus its own power supply Measuring only 3 5 high the Model 1000R16 is designed to occupy only 2U in a 19 rack Sturdy front h...

Page 9: ...RC is wired as a DCE Data Communications Equipment Therefore it wants to connect to a DTE Data Termination Equipment If your RS 232 output device is a DTE you may need to use a special cable such as a...

Page 10: ...ire SIGNAL PIN PIN SIGNAL XMT 3 3 XMT XMT 4 4 XMT RJ 45 Cable 2 Wire SIGNAL PIN PIN SIGNAL XMT 4 4 XMT XMT 5 5 XMT Connection to ground is optional 4 4 2 MULTIPOINT TWISTED PAIR CONNECTION The Model 2...

Page 11: ...rmat Asynchronous Data Rate 0 to 115 2 Kbps Control Signals DSR turns ON immediately after the terminal raises DTR DCD turns ON after recognizing the receive signal from the line CTS turns on after th...

Page 12: ...distance table as a general guideline only APPENDIX C PATTON ELECTRONICS MODEL 2085RC FACTORY REPLACEMENT PARTS The Patton Model 2085RC rack system features interchangeable rear half cards power cords...

Page 13: ...ire RJ 45 Contact Number Circuit Description 1 N A Not Used 2 125 DSR 3 109 Received Line Signal Indicator CD 4 108 2 DTE Ready DTR 5 102 Signal Common 6 104 Received Data 7 103 Transmitted Data 8 106...

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