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USER
MANUAL

SALES OFFICE
(301) 975-1000
TECHNICAL SUPPORT
(301) 975-1007
http://www.patton.com

Part# 07M2085-D
Doc# 047033U,
Rev. E
Revised 1/22/08

MODEL 2085

High Speed RS-232
to RS-485 Interface
Converter

C E R T I F I E D

An ISO-9001

Certified Company

Dear Valued Customer,

Thank you for purchasing Patton Electronics products!   We do appreciate

your business.  I trust that you find this user manual helpful.  

We manufacture one of the widest selections of data communications

products in the world including CSU/DSU's, network termination units,
powered and self-powered short range modems, fiber optic modems, interface
converters, baluns, electronic data switches, data-line surge protectors,
multiplexers, transceivers, hubs, print servers and much more.  We produce
these products at our Gaithersburg, MD, USA, facility, and can custom
manufacture products for your unique needs.

We would like to hear from you.  Please contact us in any of the following

ways to tell us how you like this product and how we can meet your product
needs today and in the future.  

Web:               

http://www.patton.com

Sales E-mail:      

[email protected]

Support E-mail:    [email protected]
Phone - Sales      

(301) 975-1000

Phone - Support  

(301) 975-1007

Fax:                   

(301) 869-9293

Mail:               

Patton Electronics Company
7622 Rickenbacker Drive
Gaithersburg, MD  20879   USA

We are committed to a quality product at a quality price.  Patton

Electronics is ISO 9001 certified.  We meet and exceed the highest standards
in the industry (CE, UL, etc.).

It is our business to serve you.  If you are not  satisfied with any aspect of

this product or the service provided from Patton Electronics or its distributors,
please let us know.  

Thank you.

Burton A.Patton
Vice President

P.S.  Please tell us where you purchased this product.

Summary of Contents for 2085

Page 1: ...CE 301 975 1000 TECHNICAL SUPPORT 301 975 1007 http www patton com Part 07M2085 D Doc 047033U Rev E Revised 1 22 08 MODEL 2085 High Speed RS 232 to RS 485 Interface Converter C E R T I F I E D An ISO...

Page 2: ...d used properly that is in strict accordance with the manufacturer s instructions may cause interference to radio and television reception The Model 2085 has been tested and found to comply with the l...

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Page 4: ...relief RJ 11 or RJ 45 Silicon Avalanche Diode surge protection 2 2 DESCRIPTION The Model 2085 High Speed RS 232 to RS 485 Interface Converter provides exceptional versatility in a compact package Requ...

Page 5: ......

Page 6: ...he Model 2085 to behave like Data Communications Equipment and transmit data on pin 3 3 2 DIP SWITCH CONFIGURATION The eight switches on switch set S1 see Figure 3 above configure the Model 2085 for e...

Page 7: ......

Page 8: ...etting On Controlled by RTS Off Constantly On S1 6 Receive Impedance The setting for switch S1 6 selects the impedance of the input receiver You may select either a low impedance of 120 Ohms or a high...

Page 9: ......

Page 10: ...available with several different physical interfaces on the RS 485 side DB 25 following the RS 520 standard RJ 11 jack RJ 45 jack and terminal blocks with strain relief 4 1 1 4 WIRE CONNECTION USING T...

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Page 12: ...n Section 3 2 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 twisted pair wires about 25 4 Connect one pair of wires to XM...

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Page 14: ...ptive screw through a saddle washer and 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 o...

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Page 16: ...e DB 25 port of the RS 232 device Remember to insert and tighten the two captive connector screws Note If you must use a cable to connect the Model 2085 to the RS 232 device make sure it is a straight...

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Page 18: ...From Model 2085 7 SG Signal Ground 8 DCD Data Carrier Detect From Model 2085 To Model 2085 Data Term Ready DTR 20 DIRECTION DCE SETTING DIRECTION 1 FG Frame Ground 2 TD Transmit Data From Model 2085 3...

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