HUAWEI OptiX OSN 8800 T64/T32 Intelligent Optical Transport Platform. Product Description - part 6
Figure 4-16 OptiX OSN 8800 T32 subrack structure diagram
3
6
1
5
2
3
4
1. Board area
2. Fiber cabling area
3. Fan tray assembly
4. Air filter
5. Fiber spool
6. Mounting ear
l Board area: All the boards are installed in this area. 50 slots are available.
l Fiber cabling area: Fiber jumpers from the ports on the front panel of each board are routed
to the fiber cabling area before being routed on a side of the open rack.
l Fan tray assembly: Fan tray assembly contains three fans that provide ventilation and heat
dissipation for the subrack. The front panel of the fan tray assembly has four indicators that
indicate subrack status.
NOTE
For detailed descriptions of the fan tray assembly, see 4.2.3.3 Fan.
l Air filter: It protects the subrack from dust in the air and requires periodic cleaning.
l Fiber spool: Fixed fiber spools are on two sides of the subrack. Extra fibers are coiled in
the fiber spool on the open rack side before being routed to another subrack.
l Mounting ears: The mounting ears attach the subrack in the cabinet.
Table 4-13 Mechanical specifications of the OptiX OSN 8800 T32
Item
Specification
Dimensions
498 mm (W) × 295 mm (D) × 900 mm (H)
(19.6 in. (W) × 11.6 in. (D) × 35.4 in. (H))
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Item
Specification
Weight (empty subracka)
35 kg (77.1 lb.)
a: An empty subrack means no boards are installed in the board area, and no fan tray assembly
or air filter is installed.
4.2.3.2 Slot Description
The board area and interface area of the OptiX OSN 8800 T32 subrack provide 50 slots.
Slots of the OptiX OSN 8800 T32 subrack are shown in Figure 4-17.
Figure 4-17 Slots of the OptiX OSN 8800 T32 subrack
IU51
AUX
STG
STG
EFI1
PIU
PIU
PIU
PIU
EFI2
STI
ATE
IU37
IU38
IU39
IU40
IU41
IU42
IU43
IU44
IU45
IU46
IU47
IU48
SCC
IU20
IU21
IU22
IU23
IU24
IU25
IU26
IU27
IU29
IU30
IU31
IU32
IU33
IU34
IU35
IU36
IU28
IU9
IU10
IU1
IU2
IU3
IU4
IU5
IU6
IU7
IU8
IU12
IU13
IU14
IU15
IU16
IU17
IU18
IU19
IU11
IU50
l
: houses service boards and supports service cross-connections.
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l IU9 and IU10 are reserved for the cross-connect board (XCH/XCM).
l IU43 is reserved for future use.
l The following table provides the slots for housing active and standby boards of the subrack.
Board
Slots for Active and Standby Boards
PIU
IU39 & IU45 and IU40 & IU46
SCC
IU28 & IU11
STG
IU42 & IU44
XCH/XCM
IU9 & IU10
4.2.3.3 Fan
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 4-14 describes the functions of a fan tray assembly.
Table 4-14 Functions
Function
Description
Basic function
Dissipates the heat generated by a network element (NE), so that
the NE can operate normally within the designated temperature
range.
Commissioning control
l Auto Speed Mode: Implements automatic fan speed
regulation, depending on the subrack temperature.
l Adjustable Speed Mode: You can manually adjust the fan
speed.
Partitioned heat
Each subrack is divided into three partitions to help provide
dissipation
efficient heat dissipation. The fan speed in each partition is
independently regulated.
Hot swapping
Provides the hot swapping function for the fan tray assembly.
Alarming
Reports alarms of the fans, and reports the in-service information.
Status checking
Checks and reports on the fan status.
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Working Principle
Air flow from the subrack is bottom intake top exhaust.Figure 4-18 shows the heat dissipation
and ventilation system in the OptiX OSN 8800 T32.
Figure 4-18 Subrack heat dissipation and ventilation system
Air outlet
Fan tray assembly
Board
Area
Optical fiber
laying area
Fan tray assembly
Air inlet
The OptiX OSN 8800 supports two fan speed modes, as described in Table 4-15. The partitioned
speed regulating function is available in Auto Speed Mode. It is recommended that you operate
fans in Auto Speed Mode by default.
Table 4-15 FAN speed mode
FAN Speed
Description
Mode
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.
l Lower than 47°C (116.6°F): the fans intelligently adjust their speeds
to ensure stable heat dissipation for boards while ensuring low noise
and energy consumption.
l Higher than 47°C (116.6°F): the fans in the partition where services
boards are running will rotate at a high speed.
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 fails, the other fans run at full speed.
Adjustable Speed
Six fan speed modes are available: Stop, Low Speed, Medium-Low
Mode
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.
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Each OptiX OSN 8800 T32 subrack is divided into three partitions in terms of heat dissipation.
The subrack adopts two fan tray assemblies to implement partitioned heat dissipation. See
Figure 4-19.
Figure 4-19 Partitioned heat dissipation of the OptiX OSN 8800 T32 subrack
FAN1
FAN2
FAN3
IU51
IU37
IU38
IU39
IU40
IU41
IU42
IU43
IU44
IU45
IU46
IU47
IU48
IU20
IU21
IU22
IU23
IU24
IU25
IU26
IU27
IU28
IU29
IU30
IU31
IU32
IU33
IU34
IU35
IU36
IU9
IU10
IU1
IU2
IU3
IU4
IU5
IU6
IU7
IU8
IU11
IU12
IU13
IU14
IU15
IU16
IU17
IU18
IU19
FAN4
FAN5
FAN6
IU50
Partition 1
Partition 2
Partition 3
NOTE
If any one of the six fans in the two fan tray assemblies fails, the system can keep on operating for 96
consecutive hours in an environment with temperatures between 0°C to 45°C (32°F to 113°F).
Replace the fan tray assembly in either of the following two situations:
l Two or more fans fail in one of the two fan tray assemblies.
l One or more fans fail in each of the two fan tray assemblies.
In a system that is operating normally, the two fans in the same partition (such as FAN1 and FAN4) run
at the same speed.
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The fan tray assembly consists of fans and fan control unit. Figure 4-20 shows the functional
blocks of the fan tray assembly.
Figure 4-20 Functional block diagram of the fan tray assembly
Speed adjusting
Speed adjusting
signal
signal
SCC
Fan control unit
Status signal
Status signal
FAN
External power
External power
supply 1
supply 2
l FAN: dissipates heat generated by normal operation of the subrack. FAN is the core of the
fan tray assembly.
l Fan control board:
- Controls the fan speed according to the fan speed regulating signals.
- Detects faults. After a fault is detected, the fan control unit reports an alarm. In this case,
the SCC board issues commands to instruct the other fans to run at the full speed.
- Monitors speed regulating signals, the fan status, and the online/offline state of the fan
tray assembly.
- Receives and carries out commands from the SCC board to shut down the fans on the
fan tray assembly if necessary.
Appearance
Figure 4-21 shows a fan tray assembly.
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Figure 4-21 Fan tray assembly
3
2
1
1. Air filter
2. Operating status indicators
3. Fans (three in total)
NOTE
An air filter is installed on the lower fan tray assembly to prevent dust from entering the subrack.
Valid Slots
The fan tray assembly occupies one slot. The valid slots for the fan tray assembly are IU50 and
IU51 in the OptiX OSN 8800 T32 subrack.
Specifications of the Fan Tray Assembly
Table 4-16 lists the technical specifications of the fan tray assembly.
NOTE
For the transport equipment, heat consumption and power consumption are similar and can be taken as the
same. Heat consumption (BTU/h) = Power consumption (W) x Time (h)/0.2931(Wh).
Table 4-16 Technical specifications of the fan tray assembly
Item
Specification
Dimensions
493.7 mm (W) x 280.5 mm (D) x 64.0 mm (H) (19.4 in. (W) x
11.0 in. (D) x 2.5 in. (H))
Weight
3.6 kg (7.9 lb.)
Power Consumptiona
l Low Speed: 60 W
l Medium-Low Speed: 80 W
l Medium Speed: 110W
l Medium-High Speed: 170W
l High Speed: 270W
a: Rotating speed of fans is controlled intelligently. When the system is typically configured,
rotating speed of fans is automatically adjusted to a low level. When the system is fully
configured with boards of high power consumption, and the system is running in a high
ambient temperature, rotating speed of fans may be adjusted to a high level. When rotating
at the maximum speed, power consumption of fan tray assembly may reach 270 W.
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4.2.3.4 Power Consumption
This section describes the maximum and typical subrack power consumption specifications.
Table 4-17 describes the power consumption of an OptiX OSN8800 T32 subrack.
NOTE
For the transport equipment, heat consumption and power consumption are similar and can be taken as the
same. Heat rate (BTU/h) = Power consumption (W) x Time (h)/0.2931(Wh).
Typical configuration power consumption indicates the average power consumption of the equipment with
the typical configuration and the equipment runs at the room temperature. Maximum power consumption
indicates the possible maximum power consumption when the equipment runs in an environment with
extreme conditions.
Table 4-17 Power consumption of an OptiX OSN 8800 T32
Item
Value
Maximum subrack power consumptiona
3500 W
Recommended typical configuration power
less than 2000 W
consumption (OTN)
Recommended typical configuration power
less than 2250 W
consumption (OCS)
a: The maximum subrack power consumption refers to the theoretical power consumption
obtained when boards with the highest power consumption are installed in every slot on the
subrack.
Table 4-18 describes the power consumption of the subrack in typical configuration in an OptiX
OSN 8800 T32.
Table 4-18 Power consumption of the subrack in typical configuration in an OptiX OSN 8800
T32
Unit Name
Typical
Maximum
Remarks
Power
Power
Consumptio
Consumptio
n at 25°C (77°
n at 55°C
F) (W)a
(131°F) (W)a
Subrack
OTU
1633.4
2254.6
32 x LDX, 1 x SCC, 4 x PIU, 1
subrack
x AUX, 1 x EFI1, 1 x EFI2, 1 x
ATE, and 2 x fan tray assembly
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Unit Name
Typical
Maximum
Remarks
Power
Power
Consumptio
Consumptio
n at 25°C (77°
n at 55°C
F) (W)a
(131°F) (W)a
OTU
1641.6
2166.5
2 x XCH, 20 x NQ2, 1 x SCC,
electrical
4 x PIU, 5 x TQX, 5 x TOA, 1
cross-
x AUX, 1 x EFI1, 1 x EFI2, 1 x
connect
ATE, and 2 x fan tray assembly
subrack
OTM
792.5
1287.1
1 x M40V, 1 x D40, 1 x OAU1,
subrack
1 x OBU1, 12 x LDX, 1 x SCC,
4 x PIU, 1 x AUX, 1 x EFI1, 1
x EFI2, 1 x ATE, and 2 x fan
tray assembly
OLA
290.3
706
4 x OBU1, 4 x VA1, 1 x SC2, 1
subrack
x SCC, 4 x PIU, 1 x AUX, 1 x
EFI1, 1 x EFI2, 1 x ATE, and 2
x fan tray assembly
OADM
974
1497.2
2 x OAU1, 2 x MR8V, 16 x
subrack
LDX, 1 x SC2, 1 x SCC, 4 x
PIU, 1 x AUX, 1 x EFI1, 1 x
EFI2, 1 x ATE, and 2 x fan tray
assembly
378.2
811
2 x M40V, 2 x D40, 2 x FIU, 1
x SC2, 2 x RMU9, 2 x WSM9,
2 x OAU1, 2 x OBU1, 1 x SCC,
4 x PIU, 1 x AUX, 1 x EFI1, 1
x EFI2, 1 x ATE, and 2 x fan
tray assembly
373.1
306.6
2 x M40, 2 x D40, 2 x WSMD9,
2 x DAS1, 1 x SCC, 4 x PIU, 1
x AUX, 1 x EFI1, 1 x EFI2, 1 x
ATE, and 2 x fan tray assembly
OCS System
1281
1757
2 x XCMs, 10 x SLQ64, 8 x
SLO16, 2 x SLH41, 2 x EGSH,
2 x STG, 1 x STI, 2 x SCC, 4 x
PIU, 1 x AUX, 1 x EFI1, 1 x
EFI2, 1 x ATE, and 2 x fan tray
assembly
a: Indicates that the power consumption of the subrack and cabinet is the value in a certain
configuration. The value is for reference only. The actual power consumed by the chassis and
cabinet is a calculation based on the power consumption of each module.
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4.2.3.5 Power Requirement
This section describes the requirements on power supply.
Requirements on Voltage and Current
Table 4-19 provides the requirements on voltage and current of an OptiX OSN 8800 T32.
Table 4-19 Requirements on voltage and current of an OptiX OSN 8800 T32
Item
Requirement
Rated working current
100 A (Independent power supplies to two
sections of each subrack, with 50A for each
section)
Nominal working voltage
-48V DC/-60V DC
Working voltage range
-40V DC to -72V DC
PIU
The PIU board receives and provides DC power for equipment. For OptiX OSN 8800 T64/8800
T32, the PIU board can be TN16PIU or TN51PIU. For OptiX OSN , the PIU board must be
TN16PIU.
l Function
Accesses DC power in a range from -40 V to -72 V. Provides lightning protection and
power filtering functions. Unlike the TN51PIU, the TN16PIU supports intelligent ammeter
function, which enables the TN16PIU to detect the power consumption of the entire subrack
and report the power consumption to the system control unit.
NOTE
The overcurrent protection function for the access power supplies of each subrack is realized by the
magnetic circuit breaker of the PDU.
l Front Panel
Appearance of the Front Panel
Figure 4-22 Front panel of the TN51PIU board
PIU
PWR
RTN(+)
REG(-)
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PIU
PWR
RTN
-48V
Figure 4-23 Front panel of the TN16PIU board
PIU
PWR
RTN(+)
NEG(-)
Indicators: Power indicator (PWR) - green
l Valid Slots
Table 4-20 Valid slots for the TN51PIU board
Product
Valid Slots
OptiX OSN 8800 T64
IU69, IU70, IU78, IU79, IU80, IU81,IU88 and IU89
OptiX OSN 8800 T32
IU39, IU40, IU45, and IU46
Table 4-21 Valid slots for the TN16PIU board
Product
Valid Slots
OptiX OSN 8800 T64
IU69, IU70, IU78, IU79, IU80, IU81,IU88 and IU89
OptiX OSN 8800 T32
IU39, IU40, IU45, and IU46
OptiX OSN
IU20 and IU23
l Specifications
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