Fan And Heat Dissipation - Huawei OptiX OSN 8800 Hardware Description

OptiX OSN 8800/6800/3800
Hardware Description
Subr
ack
Type
ral
Gene
ral
Gene
ral
a: In enhanced OptiX OSN 8800 T32 subrack, the maximum OTN service cross-connect
capacity of a single slot can be smoothly increased from 40 Gbit/s to 100 Gbit/s by
replacing the cross-connect board. In general OptiX OSN 8800 T32 subrack, the maximum
OTN service cross-connect capacity of a single slot can be smoothly increased from 40
Gbit/s to 80 Gbit/s by replacing the cross-connect board.
b: k = 0, 1, 2, 2e, 3, 4, or flex. Only the UXCH or UXCM supports ODU4 granularities.
c: Theoretically, the enhanced subrack supports grooming of a maximum of 1.6 Tbit/s
packet services. In practice, however, the packet service grooming capability of the
enhanced subrack is determined by packet boards. The current version provides a packet
service grooming capability up to 1.28 Tbit/s.
d: All service slots share a bandwidth of 80 Gbit/s.

4.3.5 Fan and Heat Dissipation

Each OptiX OSN 8800 T32 subrack has two fan tray assemblies, each of which includes three
independent fans. In each subrack, the lower fan tray assembly has an air filter, but the upper
fan tray assembly does not have 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, TN51.
Functions and Features
Table 4-22
Table 4-22 Functions of a fan tray assembly
Function
Basic function
Commissioning control
Issue 01 (2016-03-10)
Cros Maximum Cross-Connect
s-Co Capacity of Each Slot
nnec
ODU VC-4
t
k
b
Boar
d
M Gbit/s Gbit/s
XCH 40 40
Gbit/s Gbit/s
XCM 40 40
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.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Maximum Cross-Connect
Capacity of Subrack
a
VC-3/ Packe ODU
VC-12 t k
c b
d
Gbit/s Gbit/s Tbit/s
N/A N/A 1.28
Tbit/s
40 N/A 1.28
Gbit/s Tbit/s
4 OptiX OSN 8800 Subrack
c
VC-4 VC-3/ Packe
VC-12 t
c
Tbit/s Gbit/s Gbit/s
1.28 N/A N/A
Tbit/s
1.28 80 N/A
Tbit/s Gbit/s
36