Cooling system, Fan trays – H3C Technologies H3C SR8800 User Manual

Page 23

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13

Figure 13 NEPS3500-D DC power module

(1) Power input LED

(2) Power output LED

(3) Power fault LED

Table 6 DC power module LED description

LED Color

Status

Description

IN (input)

Green

Steady on

Power is being correctly input.

Off

The power module is absent or has input voltage error.

OUT (output) Green

Steady on

The power module is correctly outputting power.

Off

The power module has output voltage error or is absent.

FAIL (fault)

Red

Steady on

The power module is experiencing an overvoltage, overcurrent, or
over-temperature condition.

Off

The power module is operating correctly or absent.

Cooling system

Fan trays

The SR8800 routers use fan trays for heat dissipation. The fan trays are hot swappable, and you can

replace fan trays without powering off the router. The fan trays can monitor the operating status of fans,

automatically adjust fan rotation speed to decrease noise and improve energy efficiency, and display
alarms.

IMPORTANT:

The SR8802 and the SR8812 routers use the same type of fan trays. The SR8805 and the SR8808 routers
use chassis-specific fan trays, and you cannot interchange their fan trays with any other SR8800 routers.

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