When the SLM connectors are viewed from the rear side of theIED, contact 4 is in the topmost position and contact 1 in the lowestposition.22.2.10.3 Technical data SEMOD117454-1 v1M12589-1 v4Table 638:SLM – LON portQuantity Range or valueOptical connector Glass fiber: type STPlastic fiber: type HFBR snap-inFiber, optical budget Glass fiber: 11 dB (1000m/3000 ft typically *)Plastic fiber: 7 dB (10m/35ft typically *)Fiber diameter Glass fiber: 62.5/125 mmPlastic fiber: 1 mm*) depending on optical budget calculationSEMOD117441-2 v5Table 639:SLM – SPA/IEC 60870-5-103/DNP3 portQuantity Range or valueOptical connector Glass fiber: type STPlastic fiber: type HFBR snap-inFiber, optical budget Glass fiber: 11 dB (1000m/3000ft m typically *)Plastic fiber: 7 dB (25m/80ft m typically *)Fiber diameter Glass fiber: 62.5/125 mmPlastic fiber: 1 mm*) depending on optical budget calculation22.2.11 Galvanic RS485 communication module SEMOD174899-1 v122.2.11.1 Introduction SEMOD158664-5 v3The Galvanic RS485 communication module (RS485) is used for DNP3.0 and IEC60870-5-103 communication. The module has one RS485 communication port.The RS485 is a balanced serial communication that can be used either in 2-wire or4-wire connections. A 2-wire connection uses the same signal for RX and TX andis a multidrop communication with no dedicated Master or slave. This variantrequires however a control of the output. The 4-wire connection has separatedsignals for RX and TX multidrop communication with a dedicated Master and therest are slaves. No special control signal is needed in this case.Section 22 1MRK 505 394-UEN AIED hardware840 Line differential protection RED650 2.2 IECTechnical manual
