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MA5600T, MA5603T, and MA5608T Hardware Description 25

This manual describes the Huawei MA5600T, MA5603T, and MA5608T hardware specifications, such as dimensions, weight, power consumption, capacity, structure, chassis, slots, boards, power modules, and optical modules.
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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
MA5600T ETSI Fan Tray (FCBB)

MA5600T ETSI Fan Tray (FCBB)

A fan tray functions heat dissipation, monitoring, and fan speed adjustment, which ensures that the device works at a stable temperature.

Appearance

Four fans are configured in the MA5600T ETSI fan tray (FCBB) of the MA5600T.

Specification

Item

Specification

Dimensions (W x D x H)

486.00 mm x 245.20 mm x 44.00 mm

Weight

2.90 kg

Power consumption

  • Static: 23 W
  • Maximum: 65 W

Function

The functions of the fan tray are as follows:

  • Heat dissipation

    The fan tray is at the top of the service subrack and exhausts hot air for heat dissipation. The cool air flows to the subrack from the bottom of the subrack and then is exhausted from the top of the subrack after passing the boards.

  • Monitoring

    The fan tray is configured with the fan monitoring board to detect whether the fans are working in the normal state. The fan monitoring board also provides the port for communication with the control board. The detected information is transmitted to the control board through the fan monitoring board periodically.

  • Speed adjustment

    The rotating speed of the fans can be adjusted according to the detected temperature automatically or be adjusted by setting the related data manually.

LED

Indicator

Color

Status

Meaning

Operation Description

STATUS

Yellow

Blinking quickly (on for 0.3 s and off for 0.3 s repeatedly)

The fan tray is not registered or is being loaded.

No action is required.

The communication between the host and the fan tray is interrupted.

Check communication between the fan tray and device.

Green

Blinking

The fan tray works in the normal state.

No action is required.

Yellow

Blinking slowly (on for 1 s and off for 1 s repeatedly)

The fan tray generates alarms that do not affect services.

Handle it based on the corresponding alarm.

Red

Blinking

The fan tray is faulty or the fan tray generates an over-temperature alarm.

  • Increase the fan speed to lower the temperature.
  • Replace the faulty fan tray.
NOTE:

When only one power board is configured, the LED turns yellow and blinks. The services are not affected.

DIP Switches

The fan tray uses the FCBB monitoring board, which supports the -48 V / -60 V input voltage and provides a set of DIP switches SW2. The following figure shows the layout of DIP switches and default settings.

Table 2-5 describes the settings of SW2.

Table 2-5  Settings of SW2

DIP Switch

Indication

Default Settings

SW2-1

It is used to set the subnode address of the fan tray that maps the data configuration.
  • ON: The address bit is 0.
  • OFF: The address bit is 1.
By default, the address bit is 1.

OFF

SW2-2

ON

SW2-3

ON

SW2-4

ON

The baud rate of the communication between the fan tray and the control board is 19200 bit/s.

ON

OFF

The baud rate of the communication between the fan tray and the control board is 9600 bit/s.

SW2-5

It is used to set the quantity of fans.

ON

SW2-6

OFF

SW2-7

It is used to set the mode of adjusting the fan speed.

ON

SW2-8

OFF

Table 2-6, Table 2-7, and Table 2-8 describe the settings of the DIP switches of SW2.

Table 2-6  Settings of SW2-1, SW2-2, and SW2-3

SW2-3

SW2-2

SW2-1

Address Value

ON

ON

ON

0

ON

ON

OFF

1

ON

OFF

ON

2

ON

OFF

OFF

3

OFF

ON

ON

4

OFF

ON

OFF

5

OFF

OFF

ON

6

OFF

OFF

OFF

7

NOTE:

When SW2-1, SW2-2, and SW2-3 are used to set the subnode address, make sure that the DIP switch settings are consistent with the data configuration. But the subnode address value cannot be the same as that of the environment monitoring board.

Table 2-7  Settings of SW2-5 and SW2-6

SW2-6

SW2-5

Fan Quantity

ON

ON

6

ON

OFF

8

OFF

ON

4

OFF

OFF

10

NOTE:
Four fans are configured in the MA5600T ETSI fan tray (FCBB) of the MA5600T.
Table 2-8  Settings of SW2-7 and SW2-8

SW2-8

SW2-7

Speed Adjustment Mode

Adjustment Strategy

ON

ON

Temperature measurement at the air intake vent (reserved)

Strategy 1

ON

OFF

Temperature measurement at the air exhaust vent

Strategy 2

OFF

ON

Temperature measurement at the air intake vent

Strategy 3

OFF

OFF

Temperature measurement at the air intake vent (the fan stops rotating)

Strategy 4

NOTE:
The MA5600T ETSI fan tray (FCBB) of the MA5600T must use speed adjustment policy 3.

Fan Speed Adjustment

Set the fan speed adjustment mode to "automatic" or "manual" in the command line interface (CLI). After the fans are installed, they work in automatic mode by default.

  • Automatic mode
    • Control-system-triggering: The control system automatically adjusts fan speed according to the board temperatures for energy conservation.
    • Monitoring-board-triggering: Electric switches 7 and 8 of the SW2 DIP switch on the monitoring board are set in four different ways to achieve four speed adjustment policies (the MA5600T ETSI subrack supports only the third policy).
    NOTE:

    The automatic mode has two variants (automatically selected by the system): control-system-triggering and monitoring-board-triggering.

  • Manual mode

    Commands are executed to adjust fan speed. The levels range from 0 to 6, level 0 being the lowest speed and level 6 being the highest speed.

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Updated: 2019-03-18

Document ID: EDOC1000060621

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