Fan And Heat Dissipation - Huawei OptiX OSN 8800 Hardware Description

OptiX OSN 8800/6800/3800
Hardware Description
Table 4-39 Cross-connect capacity of OptiX OSN 8800 T16 subrack
Cross
-Con
nect
Boar
d
TN16
XCH
TN16
UXC
M
a: k = 0, 1, 2, 2e, 3, 4 or flex. Only the TN16UXCM supports ODU4 granularities.
b: All service slots share a bandwidth of 20 Gbit/s.
c: Theoretically, the subrack supports grooming of a maximum of 800 Gbit/s packet
services. In practice, however, the packet service grooming capability of the subrack is
determined by packet boards. The current version provides a packet service grooming
capability up to 640 Gbit/s.
The maximum OTN service cross-connect capacity of each slot can be expanded from 40
Gbit/s to 100 Gbit/s by replacing the cross-connect boards in the subrack.

4.4.5 Fan and Heat Dissipation

Each OptiX OSN 8800 T16 subrack has one fan tray assembly, which includes ten
independent fans and an air filter. The air filter can be drawn out, cleaned and replaced.
Version Description
Only one functional version of the fan tray assembly is available, that is, TN16.
Functions and Features
Table 4-40
Table 4-40 Functions of a fan tray assembly
Function
Basic function
Commissioning control
Partitioned heat
dissipation
Issue 01 (2016-03-10)
Maximum Cross-Connect
Capacity of Each Slot
ODU VC-3/
VC-4
k VC-12
a
40 N/A N/A
Gbit/s
100 40 20
Gbit/s Gbit/s Gbit/s
describes the functions of a fan tray assembly.
Description
Dissipates the heat generated by a network element (NE), so
that the NE can operate normally within the designated
temperature range.
Auto Speed Mode: Implements automatic fan speed

regulation, depending on the subrack temperature.
Adjustable Speed Mode: You can manually adjust the fan

speed.
Each subrack is divided into five partitions to help provide
efficient heat dissipation. The fan speed in each partition is
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Maximum Cross-Connect Capacity
of Subrack
Pack
ODUk
a
et
b c
N/A 640
Gbit/s
50 1.6 T
Gbit/s Gbit/s
4 OptiX OSN 8800 Subrack
VC-3/ Packet
VC-4
VC-12
c
N/A N/A N/A
640 20 800
Gbit/s Gbit/s Gbit/s
59