Patton 2086 Series USER MANUAL

USER
MANUAL

SALES OFFICE
[phone]
TECHNICAL SUPPORT
[phone]
http://www.patton.com

Part# 07M2086-C
Doc# 055051UC
Revised 05/11/99

MODEL 2086 Series

Optically Isolated
RS-232 to RS-485
Interface Converter

An ISO-9001

Certified Company

CERTIFIED

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1.0 WARRANTY INFORMATION

Patton Electronics warrants all Model 2086 Series 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 2086 Series 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 2086 Series 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
interference will not occur in a particular installation. If the Model 2086
Series does cause interference to radio or television reception, which
can be determined by disconnecting the RS-232 interface, 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 Technical
Support.

1.3 SERVICE

All warranty and nonwarranty 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
Services at:

Tel: [phone]

Email: [e-mail]

www: http://www.patton.com

Patton Electronics' technical staff is also available to answer any
questions that might arise concerning the installation or use of your
Patton Model 2086 Series. Technical Service hours: 8AM to 5PM

EST, Monday through Friday.

NOTE: Packages received without an RMA number will not be

accepted.

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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 [phone].

2.1 FEATURES

• Operates asynchronously, point to point or multipoint,
over 2 or 4 wires

• Up to 32 multipoint device drops in a polling environment

• Data rates to 115.2 Kbps

• Passes transmit & receive data

• Operates off 5V power supply

• Operates without “echo”

• Driver controlled as “constantly on”, “controlled by RTS”, or

“controlled by DTR”

• Compact size ( 3.8” x 2.10” x 0.8”)

• Twisted pair connection via strain relief, RJ-11 or RJ-45

• 2500 Vrms Optical Isolation

2.2 DESCRIPTION
The Model 2086 Series High Speed RS-232 to RS-485 Interface

Converter provides exceptional versatility in a compact package.The

Model 2086 Series supports asynchronous RS-232 data rates to 115.2
Kbps over one or two unconditioned twisted pair.

The Model 2086 Series can handle up to 32 terminal drops in a

multipoint polling environment. Carrier may be set to “constantly on” or
“controlled by RTS”, or “controlled by DTR” and the unit operates with­out “echo”.

The Model 2086 Series is equipped with a DB-25 for the RS-232

connection. Options for twisted pair connection include RJ-11, RJ-45,
or Terminal Block. 2500Vrms optical isolators provide isolation
between the RS-232 and RS-485 interfaces.

3.0 CONFIGURATION

The Model 2086 Series is configured using a four position DIP
switch and two headers.Figure 1 (below) shows the location of the DIP
switch and the two headers on the board.

3.1 DIP SWITCH CONFIGURATION

The DIP switches control the transmit/receive signals on the Model
2086 Series.The table below shows the default configuration of the
switches. Following the default table is a chart showing the different
switch and jumper combinations that the Model 2086 Series has to
offer. Also included in this section is a description of the switches.

ON

OFF

Figure 1. Top View of Model 2086 Series board, showing Dip switch and jumpers

A

A
B

B

DIP SWITCH

JP4

JP3

Power

DIP SWITCH DEFAULT SETTING TABLE

Position Function

S1 RTS Control

S2 DTR Control
S3

Reserved

S4 Transmitter Control

Default

Switch

Function

off

no RTS control

of transmitter

off

no DTR control

off

n/a

ON

Constantly ON

1

2

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