| gptkbp:instanceOf | gptkb:serial_communication_standard 
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                                | gptkbp:allows | long distance communication multi-drop network
 
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                                | gptkbp:alsoKnownAs | gptkb:EIA-485 
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                                | gptkbp:application | gptkb:BACnet industrial automation
 building automation
 modbus
 
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                                | gptkbp:connectorType | gptkb:DB9 gptkb:terminal_block
 gptkb:RJ45
 
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                                | gptkbp:dataRate | 10 Mbps (short distances) 
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                                | gptkbp:definedIn | gptkb:Electronic_Industries_Alliance 
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                                | gptkbp:doesNotSpecify | gptkb:network_protocol 
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                                | gptkbp:heldBy | asynchronous communication standard balanced line standard
 
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                                | gptkbp:maximumLength | 1200 meters 
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                                | gptkbp:maximumNumberOfDevices | 32 drivers and 32 receivers 
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                                | gptkbp:operatingSystem | -7V to +12V 
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                                | gptkbp:physicalLayer | gptkb:OSI_Layer_1 
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                                | gptkbp:predecessor | gptkb:RS-422 
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                                | gptkbp:relatedStandard | gptkb:RS-422 gptkb:RS-232
 
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                                | gptkbp:requires | termination resistors 
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                                | gptkbp:specifies | electrical characteristics only 
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                                | gptkbp:standardizedBy | 1983 
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                                | gptkbp:supports | half-duplex communication full-duplex communication (with two pairs)
 multipoint communication
 
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                                | gptkbp:usedIn | SCADA systems CCTV systems
 remote data acquisition
 
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                                | gptkbp:uses | gptkb:Cyclops differential signaling
 
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                                | gptkbp:bfsParent | gptkb:Honeywell_Galaxy_security_systems gptkb:PJON
 
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                                | gptkbp:bfsLayer | 7 
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                                | https://www.w3.org/2000/01/rdf-schema#label | RS485 
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