GearMo GM-1011-B is a serial interface photoelectric isolator designed to protect RS-232 devices from damage caused by grounding loops, surges, lightning induction, hot plugging, and electromagnetic interference. It supports asynchronous, full-duplex, and full-transparent transmission modes with a transmission rate of 300 bps to 57,600 bps.
GearMo GM-1011-B is a serial interface photoelectric isolator designed to protect RS-232 devices from damage caused by grounding loops, surges, lightning induction, hot plugging, and electromagnetic interference. It supports asynchronous, full-duplex, and full-transparent transmission modes with a transmission rate of 300 bps to 57,600 bps.
RS-232 Serial Interface Photoelectric
Isolator UserManual
Model No. GM-1011-B
III.Connectorandsignal
PindistributionatRS-232DTEend
PindistributionatRS-232DCEend
I.Summary
AstheelectricandgroundingloopbetweenthetwoendsofRS
-232devicesarecompletelyblockedbytheadvancedisolation
technologyadoptedbyus,therefore,theelectricsignalfromone
Withadoptionofadvancedphotoelectricisolationtechnology,
GM-1011-BSerialInterfacePhotoelectricIsolator,alsonamed
SerialIsolator,canofferbestprotectionforRS-232serialinterface
deviceswitheliminationofdamagespossiblycausedupbygrounding
loopvoltage,surge,lightinginduction,hotplug,etc.
Normally RS-232damagesarehardwaredamagesof
communicationdevices forwhichmorethan90%ofthereasons
arebadcircumstancesincludingnon-groundingatbothends ofthe
devices,variousofsurges,lightinginduction,staticinterference
hotplug,electromagneticinterference,etc.Forexample,ifdevice
AisconnectedtodeviceBwithRS-232interface,whenthereisa
voltagemarginofabove50Vbetweentheirgroundingwires,the
communicationwillgetsunstable.RS-232SerialInterface
PhotoelectricIsolatorcantolerateapeakvoltagemarginoftransient
2,500Vrmsfor500VDConacontinuousbase,andatthesametime,
itisabletoabsorbstaticandelectromagneticinterferencefor
protectionofRS-232devices.
humidity5%to95%.
endhasbeenturnedintoopticalsignalfortransmissiontotheother
end,andtheopticalreceivedbytheotherendwillbeconverted
backintoelectricsignalagain.Inthisway,thecommunication
devicesarewellprotectedfromtheinterferenceanddamages
possiblycaused bypowergroundinglooporsurge,therefore,
obviousimprovementofthereliabilityandstabilityofthecommunication
systemareachieved.
Our GM-1011-B products are now being widely used in the
applications of point-to-point RS-232 communication system, UNIX
multi-user system, monitor control system, program control exchanger
charging terminal, satellite receiver, ATM autoteller machine etc for the
industries of electricity, insurance, telecommunications, railway, post
office, financial, banking,s ecurities, program controlling, etc.
II.Technicalparameters
Interface:conformingtoEIARS-232andCCITTV2.4
asynchronicprotocols.
Connector:DB9connectorsforbothends.
Transmissionmode:asynchronic,fullduplex,fulltransparent.
Isolationvoltage:2,500Vrmsimpulseor500VDCcontinues.
Transmissionrate:300BPS-57,600BPS.
Power:fromRS-232interface(TXD,RTSorDTR)
Measurements:63mm*33mm*17mm
Weight:30g
Workingenvironments:-40degreesto85degrees relative
DB9Female
(PIN) RS-232C
InterfaceSignal
Protectiongroundingcable
SignalinSIN(RXD)
DataterminalreadyDTR
DatadevicereadyDSR
RequestsendingRTS
ClearsendingCTS
RingindicationRI
SignaloutSOUT(TXD)
SignalgroundingGND
DB9Female
(PIN)
1
2
3
4
5
6
7
8
9
RS-232C
InterfaceSignal
IVConnectorandsignal
ConformingtoEIARS-232andCCITTV2.4standards.
2-3pinfordatasendingandreceiving,7-8pinforRTSand
CTS,4-1pinforDTRandDCD,6pinforDSRand5pinfor
GND.RS-232interface(TODTE):Connector:DB-25/9
hole-shapedconnectortobeused.
Signal:interiorsignalcablesareseparated.
Connection method
GM-1011-Bcanbe connectedinseries withbetweentheserial
connectioncable ofthepreviousRS-232andthe RS-232
interface,andeitherendisOK butyouhaveto payattentionto
thedirectionindicatedbyTO DTEorTODCE.Generally
speaking,PC userand multi-userareDTEdevices,MODEMand
terminalareDCE devices,howeverthisgeneralruledosenot
apply toallsituations.To decide DTEorDCEdevices,youhave
tobaseyourconclusiononthe signalcableofyourdevices RS-
232interface.Forexample,itis DTEfor thesignaloutputfrom
DB25interface pin2,whileitsreceivinginputisDCE.
Therefore,ifcrossedRS-232 cableisused toconnect twoDTE
devices(e.g. terminaland multi-users),youhavetoconnectthe
TO DTE endtothedeviceandTO DCEendtothecable,no
matterwhichsideyour GM-1011-B isconnected.
V.Applicationareas
Variouskindofmulti-usersystemssuchasUNIX.
Protectionofmulti-userterminalandhost.
Protectionofsatellitereceiver.
Protectionofmulti-usercards.
ProtectionofATMautomatictellermachinesconnectedwith
RS-232deviceswithoutpubicgrounding.
ProtectionofMODEMandrouters.
Empty
SignaloutSOUT(TXD)
SignalS(XD)inINR
Empty
SignalgroundingGND
Empty
Empty
Empty
DB9Female
(PIN) RS-232C
InterfaceSignal
DB9Female
(PIN)
1
2
3
4
5
6
7
8
9
RS-232C
InterfaceSignal
RingindicationRI
1 2 3
-
1
GearMo GM-1011-B is a serial interface photoelectric isolator designed to protect RS-232 devices from damage caused by grounding loops, surges, lightning induction, hot plugging, and electromagnetic interference. It supports asynchronous, full-duplex, and full-transparent transmission modes with a transmission rate of 300 bps to 57,600 bps.
Ask a question and I''ll find the answer in the document
Finding information in a document is now easier with AI
Related papers
Other documents
-
Renkforce RS232 Owner's manual
-
Nortel Networks 553-3001-211 User manual
-
3com 3C8S5807 - PathBuilder S580 Switch User manual
-
Avaya Cable (308604-14.20 Rev 00) User manual
-
Moxa Technologies Computer Hardware C218 User manual
-
Moxa C320Turbo/PCI User manual
-
Paradyne COMSPHERE 3000 Series Installation guide
-
Patton electronic Marine Battery 2017P60 RS-232 to 60mA User manual
-
Moxa Technologies Computer Hardware C168P User manual
-
Nortel Networks Communication Server 1000 User manual
