automation systems but the main use is for SubstationMonitoring Systems SMS.IEC 60870-5-103 communication protocolA single glass or plastic port is provided for the IEC60870-5-103 standard. This allows design of simple substationautomation systems including equipment from differentvendors. Disturbance files uploading is provided.DNP3.0 communication protocolAn electrical RS485 and an optical Ethernet port is available forthe DNP3.0 communication. DNP3.0 Level 2 communicationwith unsolicited events, time synchronizing and disturbancereporting is provided for communication to RTUs, Gateways orHMI systems.Multiple command and transmitWhen IEDs are used in Substation Automation systems withLON, SPA or IEC 60870-5-103 communication protocols, theEvent and Multiple Command function blocks are used as thecommunication interface for vertical communication to stationHMI and gateway, and as interface for horizontal peer-to-peercommunication (over LON only).IEC 62439-3 Parallel Redundancy ProtocolRedundant station bus communication according to IEC62439-3 Edition 1 and IEC 62439-3 Edition 2 parallelredundancy protocol (PRP) are available as options whenordering IEDs. Redundant station bus communicationaccording to IEC 62439-3 uses both port AB and port CD onthe OEM module.18. Remote communicationAnalog and binary signal transfer to remote endThree analog and eight binary signals can be exchangedbetween two IEDs. This functionality is mainly used for the linedifferential protection. However it can be used in other productsas well. An IED can communicate with up to 4 remote IEDs.Binary signal transfer to remote end, 192 signalsIf the communication channel is used for transfer of binarysignals only, up to 192 binary signals can be exchangedbetween two IEDs. For example, this functionality can be usedto send information such as status of primary switchgearapparatus or intertripping signals to the remote IED. An IED cancommunicate with up to 4 remote IEDs.Line data communication module, short, medium and longrange LDCMThe line data communication module (LDCM) is used forcommunication between the IEDs situated at distances <110km/68 miles or from the IED to optical to electrical converterwith G.703 or G.703E1 interface located on a distances < 3km/1.9 miles away. The LDCM module sends and receivesdata, to and from another LDCM module. The IEEE/ANSIC37.94 standard format is used.Galvanic X.21 line data communication module X.21-LDCMA module with built-in galvanic X.21 converter which e.g. canbe connected to modems for pilot wires is also available.Galvanic interface G.703 resp G.703E1The external galvanic data communication converter G.703/G.703E1 makes an optical-to-galvanic conversion for connectionto a multiplexer. These units are designed for 64 kbit/s resp2Mbit/s operation. The converter is delivered with 19” rackmounting accessories.19. Hardware descriptionHardware modulesPower supply module PSMThe power supply module is used to provide the correct internalvoltages and full isolation between the IED and the batterysystem. An internal fail alarm output is available.Binary input module BIMThe binary input module has 16 optically isolated inputs and isavailable in two versions, one standard and one with enhancedpulse counting capabilities on the inputs to be used with thepulse counter function. The binary inputs are freelyprogrammable and can be used for the input of logical signalsto any of the functions. They can also be included in thedisturbance recording and event-recording functions. Thisenables extensive monitoring and evaluation of operation of theIED and for all associated electrical circuits.Binary output module BOMThe binary output module has 24 independent output relaysand is used for trip output or any signaling purpose.Static binary output module SOMThe static binary output module has six fast static outputs andsix change over output relays for use in applications with highspeed requirements.Binary input/output module IOMThe binary input/output module is used when only a few inputand output channels are needed. The ten standard outputchannels are used for trip output or any signaling purpose. Thetwo high speed signal output channels are used for applicationswhere short operating time is essential. Eight optically isolatedbinary inputs cater for required binary input information.mA input module MIMThe milli-ampere input module is used to interface transducersignals in the –20 to +20 mA range from for example OLTCposition, temperature or pressure transducers. The module hassix independent, galvanically separated channels.Optical ethernet module OEMThe optical fast-ethernet module is used for fast andinterference-free communication of synchrophasor data overIEEE C37.118 and/or IEEE 1344 protocols. It is also used toconnect an IED to the communication buses (like the station1MRK 505 346-BEN -Line differential protection RED670 2.1 IECProduct version: 2.1ABB 43