Installation ManualH3C S7500 Series Ethernet Switches Chapter 1 Product Overview1-101.3.5 System Status LEDsNote:When two SRPUs are configured on an S7506R Ethernet switch, all the other LEDs onthe standby SRPU are constantly OFF except the LEDs of the SRPG.I. Board LEDsSRPG: The LEDs of the SRPG show the status of the SRPU.LPU1, LPU2, LPU3 (LPU4, LPU5, LPU6): The LEDs of these LPUs respectively showthe status of three LPUs (for the S7503), or six LPUs (for the S7506 or S7506R).Table 1-8 Description of board LEDsLED DescriptionRUN (Green) z ON or OFF: The board is faulty or the board is not in position.z Blinking (0.5 Hz): The board operates normally.ALM (Red)z OFF: The board operates normally or the board is not inposition.z ON: The board is faulty.Note:If the RUN LED blinks fast, the board is booting but does not operate normally. Duringthe initialization of the system, the ALM LED will be on for a while, but this does notmean that the board is faulty.II. Power LEDs (PWR1, PWR2 and PWR3)PWR1, PWR2 and PWR3: The LEDs of the PWR1, PWR2 and PWR3 respectivelyshow the status of the three (AC or DC) power modules.Table 1-9 Description of the power LEDsLED DescriptionOK (Green) z ON: The power module operates normally.z OFF: The power module is faulty or not in position.FAIL (Red) z ON: The power module is faulty.z OFF: The power module operates normally or is not in position.
