Optex Fiber SenSys Terrain Defender TD 100 Installation Manual page 35

RX
TX
Ground Rod
Figure 27. Trenches and Grounding Rod between BSEs
Figure 28. Sensor cables and lead-in cables in place Start-Up Module Assembly locations
In this example, the SUMAs have sensor cables entering from both directions, requiring two
SUMs inside each for the TX and RX cables. The ground rod or plate should have 10 Ω
resistance maximum; see Grounding 10 for additional information.
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