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WARRANTY/DISCLAIMER

OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and
workmanship for a period of 

13 months

from date of purchase. OMEGA’s WARRANTY adds an

additional one (1) month grace period to the normal 

one (1) year product warranty

to cover

handling and shipping time. This ensures that OMEGA’s customers receive maximum
coverage on each product. 

If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer
Service Department will issue an Authorized Return (AR) number immediately upon phone or
written request. Upon examination by OMEGA, if the unit is found to be defective, it will be
repaired or replaced at no charge. OMEGA’s WARRANTY does not apply to defects resulting
from any action of the purchaser, including but not limited to mishandling, improper interfacing,
operation outside of design limits, improper repair, or unauthorized modification. This 
WARRANTY is VOID if the unit shows evidence of having been tampered with or shows evidence
of having been damaged as a result of excessive corrosion; or current, heat, moisture or vibra-
tion; improper specification; misapplication; misuse or other operating conditions outside of
OMEGA’s control. Components in which wear is not warranted, include but are not limited to
contact points, fuses, and triacs.

OMEGA is pleased to offer suggestions on the use of its various products. However, 
OMEGA neither assumes responsibility for any omissions or errors nor assumes liability
for any damages that result from the use of its products in accordance with information
provided by OMEGA, either verbal or written. OMEGA warrants only that the parts 
manufactured by the company will be as specified and free of defects. OMEGA MAKES
NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER,
EXPRESSED OR IMPLIED, EXCEPT THAT OF TITLE, AND ALL IMPLIED WARRANTIES
INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF LIABILITY: The remedies of pur-
chaser set forth herein are exclusive, and the total liability of OMEGA with respect to this
order, whether based on contract, warranty, negligence, indemnification, strict liability or
otherwise, shall not exceed the purchase price of the component upon which liability is
based. In no event shall OMEGA be liable for consequential, incidental or special damages.

CONDITIONS:  Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as
a “Basic Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity;
or (2) in medical applications or used on humans. Should any Product(s) be used in or with any
nuclear installation or activity, medical application, used on humans, or misused in any way,
OMEGA assumes no responsibility as set forth in our basic WARRANTY/DISCLAIMER language,
and, additionally, purchaser will indemnify OMEGA and hold OMEGA harmless from any liability
or damage whatsoever arising out of the use of the Product(s) in such a manner.

RETURN REQUESTS/INQUIRIES

Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department.
BEFORE RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN
AUTHORIZED RETURN (AR) NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT
(IN ORDER TO AVOID PROCESSING DELAYS). The assigned AR number should then be
marked on the outside of the return package and on any correspondence.
The purchaser is responsible for shipping charges, freight, insurance and proper packaging to
prevent breakage in transit. 

FOR 

WARRANTY

RETURNS, please have

the following information available BEFORE 
contacting OMEGA:
1. Purchase Order number under which 

the product was PURCHASED,

2. Model and serial number of the product

under warranty, and

3. Repair instructions and/or specific 

problems relative to the product.

FOR 

NON-WARRANTY

REPAIRS, consult

OMEGA for current repair charges. Have the
following information available BEFORE 
contacting OMEGA:
1.  Purchase Order number to cover the 

COST of the repair,

2. Model and serial number of the

product, and

3. Repair instructions and/or specific problems 

relative to the product.

OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. 
This affords our customers the latest in technology and engineering.

OMEGA is a registered trademark of OMEGA ENGINEERING, INC.

© Copyright 2005 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied,
reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without
the prior written consent of OMEGA ENGINEERING, INC.

Summary of Contents for A1000 Series

Page 1: ...omega com e mail info omega com For latest product manuals omegamanual info User sGuide A1000 and A2000 Series Converter Boxes MADE IN Shop online at ...

Page 2: ...e Tel 33 0 1 61 37 2900 FAX 33 0 1 30 57 5427 Toll Free in France 0800 466 342 e mail sales omega fr Germany Austria Daimlerstrasse 26 D 75392 Deckenpfronn Germany Tel 49 0 7056 9398 0 FAX 49 0 7056 9398 29 Toll Free in Germany 0800 639 7678 e mail info omega de United Kingdom One Omega Drive River Bend Technology Centre ISO 9002 Certified Northbank Irlam Manchester M44 5BD United Kingdom Tel 44 0...

Page 3: ...ww omega com The information in this publication has been carefully checked and is believed to be accurate however no responsibility is assumed for possible inaccuracies or omissions Applications information in this manual is intended as suggestions for possible use of the products and not as explicit performance in a specific application Specifications may be subject to change without notice ...

Page 4: ...A1000 A2000 USERS MANUAL 2 ...

Page 5: ...3 A1000 A2000 USERS MANUAL ...

Page 6: ...rnal handshaking signals from the host Therefore host software written for RS 232 may be used without modification RS 485 bus control is completely transparent to the user The A1000 and A2000 can also operate as RS 485 repeaters Repeaters are required to extend communications bus lengths or allow more than 32 RS 485 devices to be connected to a communications bus A repeater simply reamplifies or b...

Page 7: ...ons 8 08 W x 2 50 H x 6 25 D A1000 7 06 W x 1 53 H x 5 30 D A2000 RS 485 Connectors Phoenix screw terminal barrier plug supplied Replace with Phoenix MSTB 2 5 4 ST 5 08 or equivalent Warranty 12 months on workmanship and materials CONNECTIONS The A1000 and A2000 have three connectors located on the rear panel two RS 485 connectors and one RS 232 connector The RS 485 connectors are 4 position screw...

Page 8: ...ROUND 6 DSR DATA SET READY 7 NC NO CONNECTION 8 CTS CLEAR TO SEND 9 NC NO CONNECTION The RS 232 connector is left open when the A1000 or A2000 is used as an RS 485 Repeater The only connections normally required for proper A1000 operation are pins 2 3 and 5 of the DB 9 connector DB 9 to DB 25 adapters can be made using the connections below DB 9 Pin DB 25 Pin 2 3 3 2 5 7 A1000 2000 RS 485 IN CONNE...

Page 9: ...S 485 converter A1000 2000 RS 485 OUT CONNECTOR The A1000 and A2000 converters contain a four pin screw terminal plug labelled RS 485 OUT This connector is the RS 485 output for the A1000 and A2000 when used as either a converter or repeater Figure 1A Connections for A1000 Figure 1B Connections for A2000 ...

Page 10: ...e the 3 pin strip on the PC board directly behind the LEDs Lift the jumper bar from the pin strip and place it over the two pins located closest to LEDS OFF written on the PC board The POWER A1000 and PWR A2000 LEDs are pilot lights that indicate adequate power supply voltage is applied to the converter The TRANSMIT A1000 and TX A2000 LEDs illuminate as data is transmitted from a host computer ont...

Page 11: ... of a RS 485 system The resistors are enabled or disabled via two 3 position DIP switches located on the A1000 rear panel One three position switch enables termination resistors for the RS 485 IN HOST data lines and the other switch enables termination of the RS 485 OUT data lines The three positioned DIP switches are located to the left of each RS 485 connector on the A1000 backpanel The three po...

Page 12: ...e a resistor insert a jumper into the jack position adjacent to the resistor nomenclature written on the A2000 printed circuit board NOTE The RS 485 IN 1K and 1K jumpers should be installed when the A2000 is used as a RS 232 RS 485 converter FACTORY RS 485 TERMINATION SETTINGS A1000 300 BAUD 1K 1K on RS 485 IN RS 485 OUT connectors enabled all other switches off A2000 300 BAUD 1K 1K on RS 485 IN R...

Page 13: ...e wiring diagrams for both the A1000 and A2000 used as RS 232 RS 85 converters and RS 485 repeaters Figure 4a Wiring diagram for RS 232 RS 485 converter with host DB 9 connector Figure 4a Wiring diagram for RS 232 RS 485 converter with host DB 25 connector ...

Page 14: ...A1000 A2000 USERS MANUAL 12 Figure 4c Wiring diagram for RS 232 RS 485 converter and RS 485 repeater ...

Page 15: ... otherwise shall not exceed the purchase price of the component upon which liability is based In no event shall OMEGA be liable for consequential incidental or special damages CONDITIONS Equipment sold by OMEGA is not intended to be used nor shall it be used 1 as a Basic Component under 10 CFR 21 NRC used in or with any nuclear installation or activity or 2 in medical applications or used on human...

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