Mercury BR20 Instruction Manual

Mercury Security Corporation, ©2008 BR20 Doc. 10107-0024 rev. 1.03 10/2008 Page 1
Informationsubjecttochangewithoutnotice.
1. General:
TheBR20magneticstripecardreaderisdesignedforreadingstandardorhigh-coercivitymagneticstripecards.The
BR20alsoprovidesa12-keykeypadforPINentryandprovidesaTTLinterface. Thefollowingparagraphsdescribe
instructions for installing and maintaining the card reader. The BR20 does not support the tamper switch option.
2. Mounting the Reader:
Findasuitablelocationtoanchorthereadermountingbracket. Thereadermaybemountedverticallyorhorizontally.
Seerecommendedorientation. Themountingofthereaderdoesnotrequireajunctionbox. However,rigidconduit
isrequired foroutdoor application. Asingle gangjunction boxmay be usedto providea transitionto rigidconduit.
Ifasinglegangjunctionboxisused,awallplate(optional)maybeusedtocoverthejunctionbox. Thereaderisthen
securedtothemountingbracketusingascrew. Refertofiguresforreaderdimensionsandtypicaljunctionboxusage.
BR20 Magnetic Card Reader
InstallationandMaintenance
www.mercury-security.com
2355 MIRA MAR AVE. LONG BEACH, CA 90815-1755, [phone] FAX [phone]
CAUTION:DONOTDISCONNECT
KEYPADWITHOUTDISENGAGING
THECONNECTOR!
3. Reader Wiring:
ThereaderhasaRJ-11modularjackforeasyfieldconnection. Ashortpieceofpre-terminatedcableissuppliedwith
eachstandardreaderforfieldwiring. Thepre-terminatedcablehasnonstandardcolor. Refertopinnumberifthepre-
terminatedcable isnot used. Cable withwires of24AWG or larger are recommendedfor fieldwiring.
4. Connecting the Keypad:
TheBR20 providesa12-keykeypadforPINentry.Theflextailofthekeypadisconnectedtotheelectronicboardvia
a ZIF (zero insertion force) connector. The contacts are engaged/disengaged by a moving slide. Care must be
exercisedwhenconnectinganddisconnectingthekeypad.Whenconnectingthekeypadtotheboard,opentheslide
asshown.InserttheelectronicsintothehousingandinsertflextailintheZIFconnector.Then,closetheslidetoengage
the contacts. To disconnect the keypad, follow the previously described steps in reverse.
5. Weather Proofing the Reader:
CONFIDENTIAL: Forinstallationandmaintenanceuseonly. DO NOT distribute.
This device complies with part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference,
and (2) this device must accept any interference
received, including interference that may cause un-

Mercury Security Corporation, ©2008 BR20 Doc. 10107-0024 rev. 1.03 10/2008 Page 2
Informationsubjecttochangewithoutnotice.
The reader is rated to operate over an extended
temperaturerangeandtheelectronicsareconformal
coatedagainstmoisture. Ifthereaderisexpectedto
beexposedtoweather,usethedielectricgreaseto
coat the field connections. After field connection/
configurationismade,thegreaseistobeappliedon
the DIP switch slides, keypad connection, and the
RJ-11 jack to seal out moisture.
Do not use sealant to seal reader case to the
wall.Doingsowilltrapwaterinthereaderandmay
causedamagetothereader.
6. TTL Interface:
TheTTLinterfacehasthestandard5-wireinterfacewidelyusedintheaccesscontrolapplication.Inaddition,aninput
to control the buzzer is provided. Cable with minimum of 24AWG wires should be used.
Pin # Wire Signal Description
1 Red Vin Powersupply input,5Vdc or12Vdc, Modeldependent
2 Green /Data(Mag)or Readerdataoutput
/Data0 (Wieg)
3 White /Clock(Mag)or Readerdataoutput
/Data1 (Wieg)
4 Brown LED LEDinput
1-wirecontrol: 0V turns on the green LED
5V turns on the red LED
2-wire control: 0V turns on the red LED
5 Orange Buzzer/LED Buzzer/LEDinput
1-wire control: 0V turns on the buzzer
2-wirecontrol: 0V turns on the green LED
6 Black SignalGround Powersupplyreturn,DCground
7. Grounding the Reader:
Toavoid havingESD(electrostaticdischarge)interferingwiththeoperationofthereader,thereadercasingshallbe
grounded.Thiscanbeaccomplishedbytyingthemountingbrackettoearthgroundlocally(e.g.grounded conduit).
8. DIP Switch Setting:
TheDIP switch on the BR20reader is used to selecta preset format, the functionsfor the LED and buzzer,and the
outputsignalformat,etc.Thepresetformatdetermineshowthecardisinterpreted.Refertotheformatspecification
fordetail. The settings are for STANDARD modelsONLY. The BR20 does not support the tamperswitch option.
MODULAR PLUG
1 (RED) +5 or +12Vdc
2 (GRN) DATA 0/DATA
3 (WHT) DATA 1/CLOCK
4 (BRN) LED
5 (ORG) BUZZER/LED
6 (BLK) GND
depends on model
FORMAT SW-4 SW-3 SW-2 SW-1 OUTPUT LED BUZZER TAMPER
0 ON ON ON ON DATA 1/DATA 0 1-WIRE LED YES NO
1 ON ON ON OFF CLOCK/DATA 1-WIRE LED YES NO
2 ON ON OFF ON CLOCK/DATA 1-WIRE LED YES YES
3 ON ON OFF OFF CLOCK/DATA 1-WIRE LED YES NO
4 ON OFF ON ON DATA 1/DATA 0 1-WIRE LED YES NO
5 ON OFF ON OFF DATA 1/DATA 0 1-WIRE LED YES NO
6 ON OFF OFF ON DATA 1/DATA 0 1-WIRE LED YES NO
7 ON OFF OFF OFF DATA 1/DATA 0 1-WIRE LED YES NO
12 OFF OFF ON ON CLOCK/DATA 2-WIRE LED NO NO
13 OFF OFF ON OFF DATA 1/DATA 0 2-WIRE LED NO NO
15 OFF OFF OFF OFF CLOCK/DATA 1-WIRE LED YES YES

Mercury Security Corporation, ©2008 BR20 Doc. 10107-0024 rev. 1.03 10/2008 Page 3
Informationsubjecttochangewithoutnotice.
9. BR20 Standard Format Code Summary:
Thefollowingformatsare supportedinstandardmodels(31002-8000/31012-8000).
Unless otherwise indicated, the LED input line controls both LEDs (low=green, high=red); the BUZZER input
controls the buzzer (low = activate); a good read is signaled by a flash of the green LED; a bad read is signaled
by a flash of the red LED and a double beep of the buzzer.
Format 0 - 32-bitWiegandcompatibleoutputfromstandardNorthernComputermagcard.16-bitfacilitycode
and16-bituserID. Reversereadand errorfilterisenabled. Tampermonitordisabled.
Format 1 - Basicmag-stripedataoutput:sendtrack2datawithoutanyverificationorformattingusingCLOCK/
DATA signaling. All reads are "good", card data sent as is. Tamper monitor disabled.
Format 2 - Mag-stripe data output with zero trim using CLOCK/DATA signaling. All reads are "good", trims
excess zero bits, otherwise send data as is. Tamper monitor enabled.
Format 3 - Mag-stripedataoutputwithzerotrim,reversereadcorrection,anderrorfilterenabledusingCLOCK/
DATAsignaling. Tampermonitordisabled.
Format 4 - 26-bitWiegand (8-bitfac.and 16-bitID)compatibleoutput fromcardswith 8ormoredigits orAMC
encoding. SeeFormat 5 for digitusage. Tamper monitor disabled.
Format 5 - 34-bitWiegand(12-bitfac.and20-bitID)compatibleoutputfromcardswith8ormoredigits orAMC
encoding. Tampermonitordisabled.
Facility Code UserID
Digitsinmagcard Digits 26-bit Range 34-bitRange Digits 26-bitRange 34-bitRange
8 1-3 000-255 000-999 4-8 00000-65535 00000-99999
9 1-3 000-255 000-999 4-9 000000-065535 000000-999999
10 1-4 0000-0255 0000-4097 5-10 000000-065535 000000-999999
11ormore 1-5 00000-00255 00000-04097 6-11 000000-065535 000000-999999
AMCcard 1-6 000000-000255 000000-004097 7-12 000000-065535 000000-999999
Format 6 - 26-bitWiegandcompatibleoutputfromstandardNorthernComputer32-bitmag-stripecard.Thelower
8bitsofthe16-bitfacilitycodeisusedasfacilitycode. The16-bituserIDisunaltered.Reverseread
anderrorfilterisenabled. Tampermonitordisabled
Format 7 - Mag-stripedataoutputwithzerotrimandreversereadcorrectionusingDATA1/DATA0signaling.
Tampermonitordisabled.
Format12 - Mag-stripedataoutput:sendtrack2datawithoutanyverificationorformattingusingCLOCK/DATA.
Allreadsare"good",carddataissent asis. 2-wireLEDcontrol. Nobuzzercontrol. Tampermonitor
disabled.
Format13 - Mag-stripedataoutputwithzerotrimandreversereadcorrectionusingDATA1/DATA0signaling.
2-wireLED control. Nobuzzer control. Tampermonitor disabled.
Format15 - (factorytest)mag-stripedataoutput:verifytrack2dataandsendtrack2datawithoutformattingusing
CLOCK/DATAsignaling. Zerotrim,reverseread,badcardfilter,andtampermonitorenabled.
10. Keypad Data Signaling:
Keypad data is transmitted on the data lines as 8-bit blocks. They are encoded and sent using the same signaling
methodasselectedforthecarddataoutput(clock/dataordata1/data0). IfDorado8-bitkeypaddataformatisrequired
orderthe-K1option. Carddata,andkeypaddatablocksareseparatedbyaminimumof100milliseconds.Seefollowing
forcodes:
10110000 - 0 (ASCII '0', odd parity, MSB first) 00110001 - 1 (ASCII '1', ...)
00110010 - 2 (ASCII '2', ...) 10110011 - 3 (ACSII '3', ...)
00110100 - 4 (ASCII '4', ...) 10110101 - 5 (ASCII '5', ...)
10110110 - 6 (ASCII '6', ...) 00110111 - 7 (ASCII '7', ...)
00111000 - 8 (ASCII '8', ...) 10111001 - 9 (ASCII '9', ...)
00101010 - * (ASCII '*', ...) 00100011 - # (ASCII '#', ...)
11010011 - SAFE (ASCII 'S', ...) 01010100 - ALARM (ASCII 'T', ...)

Mercury Security Corporation, ©2008 BR20 Doc. 10107-0024 rev. 1.03 10/2008 Page 4
Informationsubjecttochangewithoutnotice.
11. Reader Verification:
Thereaderperformsaself-testwhenpowerisfirstappliedtotheunit.Ifpower-ontestissuccessfullycompleted,the
readerwillturnon both LEDsforapproximately1 second andsoundthebuzzer for 1shortbeep.Then thereaderis
readyfornormaloperation.
Iffurtherverificationofthereaderhardwareisneeded,thereadermaybetemporarilysettoformat3.Withthisformat
selected,thereader willreadand verifystandardANSI track2encoded card.Ifno readerroris detected,the green
LEDwill flash. Otherwise, the redLED will flashand the buzzer will soundtwo short beepsto indicate an error. The
LEDinput can beused toverify the LEDfunction; andthebuzzer inputfor thebuzzerfunction. Thereader willecho
a key press with a brief flash of both LEDs and a short beep of the buzzer. Reset to the required format for normal
operationaftertest.
12. Maintenance:
Thereaderisdesignedtoprovidecontinuousservicewithminimalroutinemaintenance.However,contaminants(such
as magnetic oxides from badges and dirt) tend to accumulate on the read head. Without regular cleaning, these
contaminantswillshortenthereadheadlifeandincreasetheprobabilityofcardreaderror.Amaintenanceschedule
shouldbedevelopedbaseonthecardreaderenvironment (dirtyorclean)andtheusagefrequency(lighttrafficorheavy
traffic). Extreme case may require daily cleaning.
Headcleaningmaybedonebyusingadisposable,pre-saturatedmagneticheadcleaningcard.Thesecardsarereadily
obtainable from a number of sources (e.g. Clean Team Co., www.cleanteam.com, 800-888-8830; KIC Products,
www.kicproducts.com,207-514-7030;SystemID,www.systemid.com,888-648-4452).
Thereaderexteriorsurface is coveredwithhigh strength polymerandpolyestermembrane. Itmaybecleaned with
a soft cloth and mild detergent if required.
13. Specifications:
The reader is for use in low voltage, class 2 circuits only.
Power: Voltage 5Volt Model: 5.8 Vdc (4.9 to 6.4 Vdc)
12Volt Model: 12 Vdc (10.2 to 13.8 Vdc)
Current 50mA (25mA typical.)
Dataoutput: Clock/data or data 1/0 pair
Timing clock/data: period1mS
setup/hold time 400uS, clock pulse width 200uS typical
data1/0: period, 1mS for Wieganddata, 1mS for magstripe data
pulse width 50uS typical
LEDinput: 1-wiremode inputnot driven: LEDsOFF
input > 3.5Vdc: RedLEDON
input < 0.8Vdc: GreenLEDON
2-wiremode input < 0.8Vdc: Red LED ON
Buzzer/LED: 1-wiremode input not driven or > 3.5Vdc: buzzer OFF
input < 0.8Vdc: buzzerON
2-wiremode input < 0.8Vdc: Green LED ON
Mechanical: Dimension 2.59" (66mm) W x 1.30" (33mm) H x 5.50" (140mm) L
Weight 11.3oz. (320g) nominal
Material Case,Die cast aluminum, gray powder coat standard.
Mounting, stainless steel
Wall plate, 18 CRS, gray powder coat standard
Card: 75 bpi, ANSI X4.16, Track 2 standard, Speed 3 to 50 ips
ReadHead: 1,000,000 passes typical.
Distance: 500' (152m) with 18 AWG wires.
Environmental: Temperature -55to +85 degreesC, storage
-40to+75degreesC,operating
Humidity 0-100%RHNC

Mercury Security Corporation, ©2008 BR20 Doc. 10107-0024 rev. 1.03 10/2008 Page 5
Informationsubjecttochangewithoutnotice.
Manual revision, See appropriate
manual for FORMAT information.
14. Product Identification:
Readerproductidentificationisprovidedon labels.TheselabelshaveinformationonprogramID,revision,productID,
supply voltage, and copyright notice. These labels are located on the circuit board and the back of the reader.
Optional Wall Plate (part# WP10)
Fitting Rigid Conduit to Junction Box
15. Reader Mounting Dimensions:
0.99 [25]
DIMENSION: INCH [mm]
MOUNTING HOLE
2X Ø.18 [4.5]
2.60 [66]
3.30 [84]
1.30 [33]
WALL STUD

Mercury Security Corporation, ©2008 BR20 Doc. 10107-0024 rev. 1.03 10/2008 Page 6
Informationsubjecttochangewithoutnotice.
Warranty
Mercury Security Corporation warrants the product is free from defects in material and workmanship under normal use and service with proper maintenance for
twoyearsfromthe date of factory shipment. Mercury Security Corporationassumesnoresponsibility for products damaged by improper handling or installation.
This warranty is limited to the repair or replacement of the defective unit.
There are no expressed warranties other than set forth herein. Mercury Security Corporation does not make, nor intends, nor does it authorize any agent or
representative to make any other warranties, or implied warranties, and expressly excludes and disclaims all implied warranties of merchantability or fitness for
aparticularpurpose.
Returnedunitsarerepairedorreplacedfromastockofreconditionedunits.Returnsmustbeaccompaniedbyareturnauthorizationnumber(RMA)obtainedfrom
customer service, and prepaid postage and insurance.
Liability
The card readers should only be used to control exits from areas where an alternative method for exit is available. This product is not intended for, nor is rated
foroperationinlife-criticalcontrolapplications.MercurySecurityCorporationisnotliableunderanycircumstancesforlossordamagecausedbyorpartiallycaused
by the misapplication or malfunction of the product. Mercury Security Corporation's liability does not extend beyond the purchase price of the product.