Huawei OptiX OSN 8800 User Manual

OptiX OSN 8800/6800/3800
Hardware Description
4 OptiX OSN 8800 Subrack
Issue 01 (2016-03-10)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
61
Table 4-41 FAN speed mode
FAN Speed
Mode
Description
Auto Speed Mode
Fan speed in each partition is regulated automatically according to the
temperature of the boards in the partition where the fans are installed.

Lower than 25°C (77°F): the fans run at low speed.

Higher than 45°C (113°F): the fans run at high speed.

25°C to 45°C (77°F to 113° F): The fans automatically adjust their
rotation speeds. This mode can reduce noise and is power-saving.
Fan speed in each partition is independently regulated.
The fans run at full speed if the speed regulating signals are abnormal.
If one of the fans in each partition fails, the other fan runs at full
speed.
Adjustable Speed
Mode
Five fan speed modes are available: Low Speed, Medium-Low
Speed, Medium Speed, Medium-High Speed, and High Speed. You
can set the fan speed manually. In Adjustable Speed Mode, the fans in
all partitions run at the same speed and do not support the partitioned
manual fan speed adjustment.
Each OptiX OSN 8800 T16 subrack is divided into five partitions in terms of heat dissipation.
The subrack adopts one fan tray assembly to implement partitioned heat dissipation. See
Figure 4-24.
Figure 4-24 Partitioned heat dissipation of the OptiX OSN 8800 T16 subrack
IU19
EFI
IU20
PIU
IU21
AUX
IU22
IU24
ATE
IU23
PIU
IU10IU9
IU
1
IU
2
IU
3
IU
4
IU
5
IU
6
IU
7
IU
8
IU
11
IU
12
IU
13
IU
14
IU
15
IU
16
IU
17
IU
18
A
Fan tray
assembly
B C D E
In the OptiX OSN 8800 T16, there are five partitions (A, B, C, D, and E) in each subrack.
Two fans in each partition dissipate heat generated by the boards in the partition where the
fans reside.

Huawei OptiX OSN 8800 Specifications

General

Brand	Huawei
Model	OptiX OSN 8800
Category	Network Hardware
Language	English