Omega Products OM-EL-PANEL-IR Installation Manual

®

An OMEGA Technologies Company

OM-EL-PANEL-IR

PANEL MOUNT INFRARED COMMUNICATIONS MODULE

INSTRUCTION

SHEET

M-3147

The OM-EL-PANEL-IR moduleconverts serial data between electrical and InfraRed formats. Idealfor applications that require remote control or dangerous
environments where cables would be a safety risk, OM-EL-PANEL-IR employs the IrDA infra-red communications standard to achieve reliable transfer of
data. The snap-inintegral bezel makes installation quickand easy.

Panel mounted

Uses IrDA Communication Standard

Connects to Microcontroller, UART,

or EasyLog Module

Half-duplex Communications

10-Way Pin Header

Baud rate

Select the baudrateas shown inthe table below. Wherea "0"
is shown, either connect the pin to 0V or leave it
unconnected. Where a"1" is shown, connectthe pinto V+.

Pin6 Pin7 Pin8 Baud

0 0 0 9600
0 0 1 14400
0 1 0 19200
0 1 1 28800
1 0 0 38400
1 0 1 57600
1 1 0 115200

InfraRed Module OM-EL-PANEL-IR

Specification Min Typ Max Unit

Power supply 3 5 5.5 V
Current consumption Receive 3 5 6 mA

Transmit 7 12 25 mA
Communication cone ±15 °
Communication distance 0 1/3.3 m/ft
Data rate ( ) 9600 115200 bps
Infra-red pulse duration 1.6 s
Latency 10 ms

Note 1: Depending on transmission duty cycle
Note 2: Under normal lighting conditions
Note 3: This is the time delay between receive and transmit operations

bits per second

3

1

2

Model No

µ

DIMENSIONS All dimensions in mm (inches)

20.0 (0.79)

12.7 (0.50)

17.5 (0.69)

40.0 (1.57)

27.3 (1.07)

e

fg

5

3

2

4

1

37.5 (1.78)

6

10

9

8

7

abcd

h

a. 2.00 (0.08)
b. 6.00 (0.24)
c. 1.60 (0.06) max
d. 6.00 (0.24)
e. 2.54 (0.10)
f. 0.50 (0.02)
g. 6.00 (0.23)
h. 2.00 (0.08)

Pin Name

1. Polarity

2. Disable

3. N/C

4. 0V

5. V+

6. Baud 3

7. Baud 2

8. Baud 1

9. RxD

10. TxD

Panel cut-out

38.0 x 18.0 (1.50 x 0.71)

Panel thickness

1.0 to 2.5 (0.04 to 0.1)

PANELFITTING

Locate the module by passing it through the front of the panel cut-out and gently push until the rear of the bezel is flush with the panel.
DO NOT PUSH ON THE SCREEN. The snap-in lugs will now automatically hold the module firmly in position.

PIN FUNCTION

1. Polarity Selects whether the transmit/receivelines usepositive ornegative logic.

2. Disable Disablesthe receiver/transmitter. Connect to0V todisable.

3. N/C Noconnection. Do not connectanything tothis pin.

4. 0V 0V Powersupply.

5. V+ 5V Powersupply.

6. Baud3

7. Baud2 Baud rate select (seetable overleaf).

8. Baud1

9. RxD Receive data - receiveddataappears on this pin.

10. TxD Transmitdata -apply datatobe transmitted to this pin.

Connect to 0V forpositive logic. Connect toV+ orleave unconnectedfornegative logic.

Connect to V+ orleave unconnectedto enable.

If the PANEL-IRis solely used for receivingdata thenTxD shouldbeconnected to V+ viaa 47kresistor.

APPLICATIONNOTES

Communication can take place atdistances from0m(i.e. "nose-to-nose") to1m. Theredwindow of the OM-EL-PANEL-IR module should bepointed atthe
window of the device atthe other endof the InfraRedlink. The InfraRed light beamspans approximately 30°,so the twodevices do nothave tobe directly
aligned. Thereshould however be a clear line of sight between the twodevices. At closerange, communicationis more forgiving and small obstacles will
not affect the link.

1m (3.3ft)

1m (3.3ft)

30°

OM-EL-PANEL-IR

OM-EL-PANEL-IR

OM-EL-PANEL-IR

Protocol

The OM-EL-PANEL-IR module acts as a "transparent" data translator i.e.: there is no built-in communications protocol to adhere to. The deviceworks by
transmitting anIR pulse for "Low" bits,and not transmitting anything for"High" bits.Since the first bit ofthe serialbyte (the start bit) isalways "Low", this
marks the start of thebyte. Subsequent bits are synchronized from there. Take care to set the Polarity pin (pin 1) correctly. For more detailed application
advice, contact OMEGA.

Connection to EasyLog Data Logging Modules

Connect as shown below to give your OM-EL-1 InfraRed communication capability. The flying leads should be soldered into the two PCB holes on the
OM-EL-1 module,at the lefthand end of the10-way pin header. A1K resistor mustbe fitted asshown if aserial communication cableis used inaddition to
the InfraRed link, otherwiseit canbeomitted.

10

TxD

RxD

5V

0V

OM-EL-PANEL-IR

V+

1K

1

+

LITHIUM
BATTERY

OM-EL-1

-

V-

Typical application: industrial controller

The OM-EL-PANEL-IRmoduleforms part of anInfraRed communicationslink betweentwo totallyisolatedsystems.
The OM-EL-PANEL-IRmodulewillcommunicate with any computer featuringan IrDAcompatible serialport, orany otherPCfittedwith a OM-EL-LINK-IR adapter.

Microcontroller

OMEGAnet On-Line Service

http://www.omega.com

USA:

ISO 9001 Certified

Canada:

For immediate technical or application assistance:

USA and Canada:

Mexico and
Latin America:

Benelux:

Czech Republic:

France:

Germany/Austria:

United Kingdom:

ISO 9002 Certified

OM-EL-PANEL-IR

1

UART

omega.com

SM

RxD

TxD

10

TM

®

Internet e-mail

@

info omega.com

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OM-EL-PANEL-IR

10

TxD

RxD

RS232 driver

1

e.g. MAX232

Isolation

barrier

OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of
from date of purchase. OMEGA Warranty adds an additional one (1) month grace period to the normal

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

warranty

product.
Ifthe unit should malfunction, itmust be returned tothe factory for evaluation.OMEGA’sCustomerService Department willissue
anAuthorizedReturn (AR) number immediatelyupon phone or writtenrequest.UponexaminationbyOMEGA,ifthe 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
actionofthe purchaser,includingbutnot limited to mishandling, improperinterfacing,operationoutsideof design limits, improper
repair,orunauthorizedmodification.This WARRANTY is VOIDif the unit showsevidenceof having been tampered withor shows
evidence of being damaged as a result of excessive corrosion; or current, heat, moisture or vibration; improper specification;
misapplication; misuse or other operating conditions outside of OMEGA’s control. Components which wear are not warranted,
includingbutnotlimitedtocontactpoints,fuses,andtriacs.

OMEGA is pleased to offer suggestions on the use of its various products. However, OMEGA neither assumes
responsibilityfor any omissions or errorsnor assumes liability forany 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 it will be specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR
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Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE RETURNING ANY
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CUSTOMERSERVICEDEPARTMENT(INORDERTOAVOIDPROCESSING DELAYS).The assignedAR number should then
bemarkedontheoutsideofthereturn package and on any correspondence.
Thepurchaserisresponsibleforshippingcharges,freight,insuranceandproperpackagingtopreventbreakageintransit.

WARRANTY NON-WARRANTY

FOR RETURNS,pleasehavethefollowing FOR REPAIRS,consultOMEGAfor
informationavailableBEFORE contacting OMEGA: currentrepaircharges.Havethefollowinginformation

1.P.O.numberunderwhichtheproductwasPURCHASED, availableBEFORE contacting OMEGA:

2.Modelandserialnumberoftheproductunderwarranty, 1. P.O.numbertocovertheCOSTofrepair,
and 2. Modelandserialnumberofthe product, and

3.Repairinstructionsand/orspecificproblemsrelativeto 3.
theproduct. theproduct.

OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords our
customersthelatestintechnologyandengineering.
OMEGAisaregisteredtrademarkofOMEGA ENGINEERING, INC.
© Copyright 1996 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied,
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consentofOMEGAENGINEERING,INC.

Itisthepolicyof OMEGA to comply with all worldwide safety and EMC/EMI regulations that apply.OMEGAisconstantlypursuingcertification of
itsproductstotheEuropeanNew Approach Directives.OMEGAwilladd the CE mark to every appropriate deviceuponcertification.

The information contained in this document is believed to be correct but OMEGA Engineering, Inc.acceptsno liability for any errors it contains,
andreservestherighttoalterspecificationswithout notice.

Theseproductsarenotdesignedfor use in, and should notbeusedfor,patient connected applications.WARNING:

WARRANTY/DISCLAIMER

RETURNREQUESTS/INQUIRIES

LT1081

one (1) year product

Repairinstructionsand/orspecificproblemsrelativeto

13 months