FiberHome AN6000-17, Hardware Description

Page: 15 / 88

2 Subrack
exhausted from the upper part of the subrack.
u The fan unit is configured with a fan monitoring board, which can detect the
working status of the fans. The monitoring board provides interfaces for
communication with the core switch card of the equipment, and sends the
monitoring information to the core switch card regularly.
u The fan unit provides seven speed choices: 1 to 7, in the ascending order of
speed. The fan speed can be regulated in two modes: the manual mode and
the intelligent mode.
4
In the manual mode, the fan unit operates at the speed set in the network
management system.
4
In the intelligent mode, the core switch card of the equipment automatically
selects a speed for the fan unit according to the card temperature detected,
and the fan unit will operate at the selected speed.
Indicator LEDs
Identifier
Meaning
Color Status
Description
ACT
Working
indicator LED
Green
ON
The fan is powered on normally.
OFF
The fan is not powered on
normally.
ALM
Alarm indicator
LED
Red
ON
The fan is faulty.
Blinking
The fan has its speed regulated
automatically.
OFF
The fan is working normally.
Version: A 7