PowerWalker Remote Panel - Manual (Page 4)

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Power LED: Red LED, when the Power LED is turned on, it shows the
power of the remote panel is OK.
Signal LED: Green LED, when the Signal LED is flashing, it shows the
communication between the UPS and the remote panel is OK, and if the
LED is turned on constantly, it shows that the communication is failed.
EPO: In emergency case, If the EPO connector be pulled out, UPS will
cut off the output emergency. the short-circuit between the two pin of the
EPO connector is cleared or the EPO connector on right side of the
Panel Interface is pulled out directly, EPO function is active and the UPS
will cut off the output
RJ45: Connect the straight-through CATEGORY 4 or 5 network cable
from the Remote Card.