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+44(0) 151 220 2500 [email protected] www.brainboxes.com
+44(0) 151 220 2500 [email protected] www.brainboxes.com
NEW
ES-522 Ethernet Industrial 2xRS232/422/485
Software
Network Protocols ICMP,IP,TCP,UDP,DHCP,BOOTP,Telnet,HTTP,RFC2217
Connection to Network Ethernet10BaseT/100BaseTX
Configuration Options WindowsUtility,WebInterface
Performance
IndustryleadingPerformance
Throughputguaranteedminimumof95%oftheoreticalbi-directionfullduplexbandwidthat1MBaud
Input CTSFalsetoTransmitterstop:3charactersmax,1.5typical
XOFFrecievedtoTransmitterstop:3charactersmax,1.5typical
RS485AutogatingTurnaroundtime:<1bittime
Port Settings - Software Selectable as RS232, RS422/485 Full Duplex, or RS485 Half Duplex
Baud Rate AnycustomBaudratebetween60-1,000,000(1MegaBaud)canbeselected
Data Bits 5,6,7or8
Parity Odd,Even,None,MarkorSpace
Stop Bits 1,1.5or2
Flow Control XON/XOFFSoftwarehandshakeorRTS/CTShardwarehandshake
Tx/Rx Modes
RS232allowspointtopointcommunicationbetween2devices.
RS422allowsone transmitter andupto10receiverswithdata transmitter ratesupto10megabitsper
secondfordistancesupto40feetandupto100Kilobitspersecondfordistancesupto4,000feet(1219metres).Toachieve
goodlongdistancenoiseimmunity,2wiresareusedtocarryeachsignal,configuredasatwistedpairofcables.TheTXDpair
andRXDpairareusedtocarrythedatawhilsttheRTSpairandCTSpairlinesareusedforhandshaking.Thus2twistedpairs
areusedwithouthandshakingand4twistedpaircableisusedwithhandshakingboththeseschemesallowfullduplexdata
communications.
RS485,basedontheRS422standardallowsupto32driver/receiverspairsonastandardloador128low
loaddevicesperportcanbeconnected.Whilstonlyoneoftheseshouldbetransmittingdataatanytime,therestcanall
simultaneouslylistentothedata.Handshakingisperformedbysoftwareprotocol.Twotwistedpairsformafullduplexsystem.
Oftenonlyone twistedpaircableis used astheTXD and RXDlinesaretied together;thisisknown as halfduplexmode.
BrainboxesRS422/485productsimplementastateofthearthardwareautogatingcircuitensuringerrorfreecommunications
inhalfduplexconfigurations.
recieversare1/8
th
loadallowingupto256nodesonthebus.Failsafeopencircuitand
shortcircuitprotection,protectstheIndustrialEthernettoSerialagainstwiringfaults.
OnboardRS485lineterminationresistorcanbeenabledbyauserselectablejumper.TheRS422/485
lineterminatingresisterpreventssignalreflectionswhentheESdeviceisattheendoftransmissionline.
OnboardRS485HalfDuplexfailsafebiasresistorsenabledbyuserselectablejumpers.Thefailsafebiasing
resistorspullthelinetoaknowngoodstateduringidletimespreventingphantomcharacterdetection.
Port Settings - Ethernet
Data Rate 10/100Megabits/second
Cabling Normal/Crossoverauto-sensing(Auto-MDIX)
Port - Serial
Ports 2portSoftwareSelectableasRS232,RS422/485FullDuplex,orRS485HalfDuplex
Connector RemovableScrewterminalblockconnector-3.5mmpitch
Power Input RedundantDCDualPowerInputs,reversepolarityprotected+5VDCto+30VDC
Power Consumption 1.4Watttypical60mA@24V-2.9WattMax
Conductor Wire 28to16AWG,0.14mmto1.5mmMax
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