Huawei DSLAM MA5616 Power Distribution Principle and Working Principles

Power Distribution Principle

Huawei MA5616 can be powered by a DC or AC power source through a DC or AC power board. The power board outputs -48 V DC, +3.3 V DC, and +12 V DC power to the backplane. Then the backplane provides the -48 V DC and +3.3 V DC power for the service board and control board, and provides the +12 V DC power for the fan monitoring board.

Power distribution principle of the MA5616 chassis(DC-powered H831PDIA /H832PDIA /H832PDVA/ H832PDVAA) 

Power distribution principle of the MA5616 chassis (AC-powered by H831PAIA/H831PAIC) 

Power distribution principle of the MA5616 chassis (AC-powered with power backup by H831PAIB) 

Working Principles

Huawei MA5616 supports GPON, 10G GPON or GE upstream CCUE transmission by using its control board and provides broadband and narrowband access services by using different service boards.

Working principles of the MA5616 chassis 

The working principles of Huawei DSLAM MA5616 chassis are as follows:

• The control board transmits services upstream and subtends device through subboards and manages service boards.
• The power board outputs DC power to the backplane and then the backplane transmits the power to the fan tray, service boards, and control board.
• The broadband or narrowband service board is connected to a user-side device by using a subscriber cable, and then the control board puts the user-side device through to the IP network. In this way, broadband or narrowband access service is provisioned to the user-side device.
• The fan monitoring board monitors the fan tray and transmits the monitoring signal to the control board through the backplane.

Do you know Huawei small-size DSLAM MA5616 and the Highlights? (1)

Huawei DSLAM SmartAX MA5616 Multi-service Access Module (MA5616 for short) is a 2-U high and 19-inch wide board-inserted device. It provides four service slots for flexible board configurations.

The MA5616 applies in fiber to the building (FTTB) and fiber to the curb (FTTC) scenarios. It can also function as a mini-digital subscriber line access multiplexer (DSLAM) or multiservice access node (MSAN). The MA5616 can be installed in corridors or cabinets (indoor or outdoor).

Each MA5616 provides user-to-network interfaces (UNIs), such as ADSL2+, VDSL2, SHDSL, POTS, FE, P2P, ISDN, or combo ports, and two network-to-network interfaces (NNIs) that support autonegotiation among GPON, EPON

Product Display

The following figure shows the appearance of the MA5616 equipped with a CCUE control board and PAIC power board.

CCUE control board

Hardware Structure

Commissioning serial port/Environment monitoring port

For the CON port: supports local and remote maintenance, which allows users to configure the MA5616 using software, such as HyperTerminal, through CLI. The default baud rate is 9600 bit/s.

For the ESC port: connects to an environment monitoring unit (EMU), which sends monitored environment monitoring parameters to the MA5616.

Uplink optical port

Supports auto-negotiation among GPON, EPON, and GE. Provides GPON, EPON, and GE upstream transmission or GE cascading. When this uplink optical port is used as a GE port, it is an alternative to the GE electrical (RJ45) port.

Maintenance network port

A 100M Base-T commissioning network port, which is a front-access-cabled FE port and supports 100 Mbit/s full-duplex in auto-negotiation mode.

Clock port

Outputs 2 MHz clock pulse signals.

Environment parameter monitoring port

Can be connected to a sensor to monitor environment parameters.

GE electrical port

Supports 1000 Mbit/s full-duplex upstream transmission or cascading in auto-negotiation mode. It is an alternative to the uplink optical (SFP) port.

What is the positioning and network applications of Huawei SmartAX MA5600T/MA5603T/MA5608T series devices?

Huawei MA5600T/MA5603T/MA5608T is a series of integrated fiber-copper access devices. They support ADSL2+, VDSL2, SHDSL, POTS, GPON, 10G GPON, and P2P access modes and provide Internet access, voice, and video services to subscribers. As a series of large-/medium-/small-capacity devices, they share the same software platform and service boards.

• Large-capacity device MA5600T
• Medium-capacity device MA5603T
• Small-capacity device MA5608T

Application

The MA5600T/MA5603T/MA5608T is a series of large-/medium-/small-capacity devices that support integrated fiber-copper access and access-aggregation integration.

Application network

MA5600T

The MA5600T is an integrated fiber-copper access device, and can serve as a DSLAM, OLT, or aggregation OLT.

• The MA5600T, if serving as a large-capacity DSLAM, supports ADSL2+, VDSL2, SHDSL, and POTS access modes.
• The MA5600T, if serving as a large-capacity OLT, supports GPON, 10G GPON, and P2P access modes.
• The MA5600T, if serving as an aggregation OLT, supports FTTB/FTTC/DSLAM aggregation access, which simplifies the network architecture, reduces types and number of devices, and minimizes the CO equipment room space and energy consumption.

MA5603T

The MA5603T is an integrated fiber-copper access device, and can serve as a DSLAM, OLT, or MDU.

• The MA5603T, if serving as an OLT, supports GPON and 10G GPON access modes. It can be installed at a residential district or a street side, which reduces the usage of ODN backbone optical cables, lowers the ODN deployment cost and difficulty, and minimizes the CO equipment room space.
• The MA5603T, if serving as a DSLAM, supports ADSL2+, VDSL2, SHDSL, and POTS access modes.
• The MA5603T, if serving as an MDU, supports ADSL2+, VDSL2, SHDSL, and POTS access modes and transmit packets upstream to the OLT through a GPON/10G GPON/GE/10 GE port.

MA5608T

The MA5608T is an integrated fiber-copper access device, and can serve as a mini-OLT or mini-DSLAM.

• The MA5608T, if serving as a mini-OLT, supports GPON and 10G GPON access modes. It can be installed at a residential district or a street side, which reduces the usage of ODN backbone optical cables, lowers the ODN deployment cost and difficulty, and minimizes the CO equipment room space.
• The MA5608T, if serving as a mini-DSLAM, supports ADSL2+, VDSL2, SHDSL, and POTS access modes and provides Internet access, voice, and video services

Decrease of 4 GB Available Physical Memory Caused by Poor Contact Between Memory Modules and Slots in the T5220

Issue Description

The U2000 HA system is used in a project and the hardware configuration of the server is as 

follws:
Sun T5220 Single, 4 core CPU, 1.2 GHz, 8 GB memory (4 x 2 GB), 4 X 146 GB hard disks, 1 x 1000M NIC (4 ports), 1 monitor card
The available physical memory of the active server is only 4 GB during installation. The message "MB/CMP0/MCU0 is not configured" is displayed during the system self-test. 

Alarm Information

MB/CMP0/MCU0 is not configured.

Handling Process

1. Log in to the system in the serial port mode and run the showcomponent command. It is found that the MB/CMP0/MCU0 component is in the disabled state.
2. Run the following commands to change the status of the MB/CMP0/MCU0 component:
     SC>enablecomponent MB/CMP0/MCU0
     SC>clearasrdb
3. The available physical memory of the active server is correct after the first restart. After the second restart, however, the available physical memory of the active server is incorrect.
4. Disassemble the active server. It is found that the memory module and the slot are in poor contact. Remove the memory module and reinsert it back to the slot, and restart the system. Then, the available physical memory of the active server becomes normal. 

Root Cause

Two memory modules are in poor contact with slots in the mother board. 

Suggestions

Null

The most popular Huawei OLT as below:

MA5683T Platinum Line

MA5683T Gold Line

Huawei MA5680T

Huawei MA5608T

Contact information:

Telephone: 852-30623083

Email: Sales@Thunder-Link.com

           Supports@Thunder-link.com            

Website: http://www.thunder-link.com

More related:

MA5600T Series Networking Protection Feature

MA5600T Series Maintenance Feature Glance

MA5600T&MA5603T&MA5608T 10G GPON Feature Glance

How to Configure the H.248-based Voice Service?

How to Login Huawei Equipment Through the Local Serial Port

How should we do when client doesn't start on server after installing U2000V100R001C00CP0202 for Linux?

Issue Description

Verion information:
OS: Linux Suse 10
Database: Sybase 12.5
NMS: U2000V100R001C00
Single System.
After install a patch U2000V100R001C00CP0202 we try to start the client on the server and we receive the next error, and the client doesn't start:
U2KT20001MA11:/opt/U2000/client/bin # sh U2KClient_linux.sh
U2KClient_linux.sh: line 11: @{UserRoot}/.profile: No such file or directory

Alarm Information

No alarm, but after execute the client, the server show the next error:
U2KT20001MA11:/opt/U2000/client/bin # sh U2KClient_linux.sh
U2KClient_linux.sh: line 11: @{UserRoot}/.profile: No such file or directory

Handling Process

For solve the problem we should modify the "U2KClient_linux.sh". If the problem appear is because the file have in the line 11 the next information:
    . @{UserRoot}/.profile
And we should modify to:
     . /nmsuser/.profile
After the modification the client can start on the server.

Root Cause

I check the file "U2KClient_linux.sh" and I have seen the problem. We should change the profile on the own file for have the correct one.

Suggestions

After finish the patch check the executable client file and check all is correct.

The most popular Huawei OLT as below:

MA5683T Platinum Line

MA5683T Gold Line

Huawei MA5680T

Huawei MA5608T

Contact information:

Telephone: 852-30623083

Email: Sales@Thunder-Link.com

           Supports@Thunder-link.com            

Website: http://www.thunder-link.com

More related:

MA5600T Series Networking Protection Feature

MA5600T Series Maintenance Feature Glance

MA5600T&MA5603T&MA5608T 10G GPON Feature Glance

How to Configure the H.248-based Voice Service?

How to Login Huawei Equipment Through the Local Serial Port

Introduction of Huawei MA5600 Service Shelf (2)

Huawei MA5600 Configuration – Service Shelf:
The MA5600 shelf provides 14 slots for service boards and 2 slots for control boards. This topic describes the board types and the related slots.
The MA5600 shelf uses the high-speed backplane with GE bus. It provides 16 slots, numbered 0-15.
Figure 1 shows the layout of the MA5600 shelf, and Table 1 lists the boards in the shelf.
Figure 1 Layout of the MA5600 shelf

Table 1 Boards in the MA5600 Shelf

Board Type	Silk Screen	Slot
Control board	SCUB	Slots 7-8(Insert control board in slot 7 when the control board was configured)
	SCUK
Service board	ADEF	Slots 0-6, 9-15
	ADBF
	ADEE
	SHEA
	SHEB
	VDEB
	VDBD
Interface board	ETHA	Slots 0-6, 9-15

Power Port:
This topic provides information about the functions of the power ports of the MA5600 shelf.
The power ports are located on the left side of the MA5600 shelf beside the fan tray, as shown in Figure 2.
Figure 2 Power ports of the MA5600 shelf

Table 2 describes the power ports of the shelf.

Port	Function
RTN(+)	-48 V return ground
NEG(-)	-48 V input terminal

Specifications:
This topic provides the dimensions, weight, and power consumption of the MA5600 shelf.
Table 3 lists the specifications of the MA5600 shelf.

Item	Specifications
Dimensions (W x D x H, excluding mounting brackets)	435.4 mm x 420 mm x 441.8 mm
Dimensions (W x D x H, including mounting brackets)	482.6 mm x 420 mm x 441.8 mm
Weight (empty shelf)	19.4 kg
Maximum power consumption (1 SCU + 14 ADEFs + fan tray)	1121 W
Typical power consumption (1 SCU + 14 ADEFs + fan tray)	659 W

 More related:

Introduction of Huawei MA5600 Service Shelf(1)

Introduction to MSTP_Prelude_Overview and History

How To Reset Huawei OLT MA5600T Series Equipment Password

Implementation of TR069 protocol in MA5600 series

Optical attenuation is too large lead to ONU recovery failure

Ethernet Basics_GFP, VCAT, and LCAS-V1.0