HUAWEI MA5822 Multi Service Access Equipment User Guide

HUAWEI MA5822 Multi Service Access Equipment

MA5821/MA5822 Multi-service Access Equipment

Specifications

• Device Type: Multi-service Access Equipment
• Model: MA5821/MA5822
• Dimensions: 1U (1U = 44.45mm) high
• Configurations:
  • MA5821: 8FE, 16FE, 24FE, 8GE, 16GE, 24GE, 24GE with PoE
  • MA5822: 8FE+8POTS, 16FE+16POTS, 24FE+24POTS, 8GE+8POTS, 16GE+16POTS, 24GE+24POTS

Precautions
To use the device properly and safely, please read and strictly observe the following precautions:

1. Do not look directly into the optical port without eye protection.
2. Keep the device out of the reach of children to prevent swallowing of components or accessories.
3. Install the device in strict compliance with the requirements of the supplier.
4. Ensure the device is far away from large heat sources, naked fire, and large power equipment such as electric heaters, candles, and hair dryers to avoid safety risks.
5. Replace aging or damaged power lines, cables, plug boards, and other facilities to avoid safety risks.

Appearance
The MA5821/MA5822 is a box-type device that is 1U (44.45mm) high. The appearances of devices using different configurations are as follows:

Installing the MA5821/MA5822
The MA5821/MA5822 can be installed in a 19-inch cabinet,  chassis, or network cabinet. Follow the instructions below forinstallation:

Installation in the 19-inch cabinet

1. Step 1: Install the mounting ears.
2. Step 2: Install the chassis.

Installation in the network cabinet
The modes of installing the MDU (Multi-service Access Equipment) in the network cabinet may vary depending on the specifications of the customer’s network cabinet. The following section provides common installation modes for MDU in a natural heat dissipation network cabinet (without a fan):

Mode 1: MA5821/MA5822 horizontally installed (with the panel facing the front)

Mode 2: MA5821/MA5822 vertically installed (with the panel facing the front)

Mode 3: MA5821/MA5822 vertically installed (with the panel facing downwards)

Mode 4: MA5821/MA5822 vertically installed (with the panel facing the right)

CAUTION
Do not stack multiple installations of the MA5821/MA5822.

FAQ

• Q: Can I look directly into the optical port without eye protection?
  A: No, it is recommended to always use eye protection when dealing with the optical port to avoid any potential harm.

• Q: Can I install the MA5821/MA5822 near large heat sources?
  A: No, it is important to keep the device far away from large heat sources, naked fire, and large power equipment to prevent safety risks.

• Q: Can I stack multiple installations of the MA5821/MA5822?
  A: No, stacking multiple installations is not recommended as it may affect the performance and safety of the device.

Precautions

To use the device properly and safely, read the precautions carefully before using the device and strictly observe these precautions when using the device.

Security warning and Precautions

• Do not look directly into the optical port without eye protection.
• Keep the device out of the reach of children as the components or accessories may be swallowed.
• Install the device in strict compliance with the requirements of the supplier. Reserve a space of at least 10 cm above and around the device for heat dissipation. During the installation, keep the device away from electric appliances that generate strong magnetic or electric fields, such as microwave ovens, refrigerators, and mobile phones.
• The power supply voltage of the device must meet the requirements on the input voltage of the device.
• Do not use any power adapters that are not in the standard configuration. Otherwise, the device may be abnormal or unsafe.
• Dry your hands before connecting or disconnecting cables. Stop the device and switch off the power before connecting or disconnecting cables.
• Do not place any object on the device, so that the device will not be damaged due to overheating or deformation.
• Prevent objects, such as metal, from entering the device through the heat dissipation hole.
• Switch off the power and disconnect all cables, including the power cable, optical fiber, and network cable, during periods of lightning activities.
• Do not lead the strength member of the optical fiber or other metal parts indoors. Do not install telephone lines, network cables, power adapters or power adapter cables outdoors. Adopting these measures will help prevent device damage and bodily injuries which are especially prone during thunderstorms.
• If an abnormality occurs, for example, liquid entering the device, smoke, unusual sound, and smell, stop the device immediately, switch off the power, disconnect all cables (such as the power cable, optical cable, and network cable) to the device, and contact the authorized service center.
• Do not disassemble the device without permission. In the case of a device fault, contact the authorized service center.
• Dispose of the packing materials, expired batteries, and old or abandoned devices in accordance to local laws and regulations (recycling them is strongly recommended).
• Do not change the structure, safety design, or performance design of the device without prior authorization.

Fire Warning and Precautions

• The equipment needed to be far away from the large heat source, naked fire, and large power equipment, such as electric heater, candles, hair dryer, avoid introducing safety risk.
• Near power lines – equipment or equipment, such as aging or aging cable plug board and other facilities, please timely replacement, to avoid the introduction of safety risk.

Appearance

The MA5821/MA5822 is a box-type device 1U (1U = 44.45mm) high. The appearances of devices using different modes are different.
Table 2-1 shows the appearances of the MA5821/MA5822.

Table 2-1 MA5821/MA5822 appearances

CAUTION
This is a Class A product. This product may cause radio interference, in which case the user may be required to take practical precautions interference.

Installing the MA5821/MA5822

The configuration of MA5821/MA5822 can be installation in the 19-inch cabinet, chassis and network cabinet.

Installation in the 19-inch cabinet

• Step1 Install mounting ears
• Step2 Install the chassis Installation in the network cabinet

Note

1. The air intake vent and the air exhaust vent of the network cabinet should keep expedite for the MDU heat dissipation.
2. If the network cabinet is installed indoors or in a corridor that is out of rain, the network cabinet must meet the requirements of IP31 class protection.(The first number “3” means the solid particle with a diameter equal to or larger than 2.5 mm can be prevented from entering the cabinet. The second number “1” means the drips fallen vertically cannot damage the device. )
3. If the network cabinet is installed outdoors or in a corridor that is exposed to rain, the network cabinet must meet the requirements of IP55 class protection. ( “IP” refers to International Protection. The first number “5” refers to the class for preventing the solid particle from entering the device. That is, the network cabinet cannot completely prevent dust from entering the device, but the amount of dust that enters the network cabinet does not damage the device. The second number “5” refers to the class for preventing water from entering the network cabinet. That is, the water sprayed from different directions to the network cabinet does not damage the device. )

CAUTION
Don’t stack installation of the MA5821/MA5822.
The modes of installing the MDU in the network cabinet of the customer vary with the specifications for the network cabinet of the customer. The following section describes the common modes to be taken for installing the MDU in the natural heat dissipation network cabinet (The network cabinet is without fan) of the customer. This can serve as a guide for hardware engineers to install the MDU (fix the rack-mounting ears on the front, side or back).

1. MA5821/MA5822ontally installed (with the panel facing the front)
2. MA5821/MA5822 vertically installed (with the panel facing the front)
3. MA5821/MA5822 vertically installed (with the panel facing downwards, fix the rack-mounting ears on the side)
4. MA5821/MA5822 vertically installed (with the panel facing the right, fix the rack-mounting ears on the side)

CAUTION
For better heat dissipation, avoid using the installation mode of placing the MDU vertically (with the panel facing upwards) in the network cabinet.

Guide for grounding the network cabinet

1. MA5821/MA5822
2. MDF
3. ODF
4. Grounding bat
5. AC lightning protection bar
6. AC power distribution cabinet

• In the case of the TN-C-S and TN-S AC power distribution systems, it is recommended that you use the PE wire of the AC power cable for the MA5821/MA5822 grounding connection. The prerequisite is that the PE wire of the AC power cable for the corridor of the building is already grounded properly.
• Use the ground cable (the cross-sectional area of the ground cable should be equal to or greater than 6 mm2) to connect the grounding bar and all the internal devices, and the grounding bar to the network cabinet in an equipotential manner through a metallic structure.
• Connect the grounding point of the reinforcing rib of the optical fiber to the ground bar through a ground cable, or connect this grounding point to the network cabinet in an equipotential manner through a metallic structure.

CAUTION

1. The network cabinet must be grounded through an external ground cable (PGND cable).

2. The network cabinet must be grounded through an external ground cable (PGND cable).

3. A power cable with 3-5 m must be used for decoupling between the surge protector and ONU power supply.

4. MA5821/MA5822

5. MDF

6. ODF

7. Grounding bar

8. ACPDU

9. AC power distribution cabinet

• In the case of the TT power distribution system, it is recommended that an external grounding device be adopted. For example, use the dedicated grounding device of the building
  (such as the grounding flat steel sheet, grounding stud, and grounding bar) or the base steel bar of the reinforcement concrete of the building, or deploy a new earth screen.

• Use the ground cable (the cross-sectional area of the ground cable should be equal to or greater than 6 mm2) to connect the grounding bar and all the internal devices, and the grounding bar to the network cabinet in an equipotential manner through a metallic structure.

• Connect the external ground cable (PGND cable) of the network cabinet to the external grounding device. As specified by the national grounding standard, the cross-sectional area of the external ground cable should be equal to or greater than 16 mm2.

Guide to ground the strength member

Engineering responsibilities

Grounding solution 1: The fiber strength member is isolated from the network box and grounded outside the network box.
This solution prevents the introduction of sudden heavy currents into the network box, thereby protecting the device inside the network box against heavy currents. (A long-distance armored optical cable may introduce sudden heavy currents into the network box if the outer insulation layer is broken and connects to a heavy-current power line.) Solution 1 is implemented as follows:

1. Strip the outer insulation layer and armored tube from the fiber strength member at the ground point. Then, clean bare optical fibers and use a protection tube to protect them. (Use outdoor tubes in outdoor scenarios and common tubes in indoor or corridor scenarios. Use waterproof tape produced by 3M or COTRAN.)
2. Use a piece of sandpaper to polish burrs at the stripped position of the optical cable. Then, use insulation tape to wrap the stripped optical cable. When wrapping the waterproof tape, ensure that fiber cores are force-free.
3. Cut excess fiber strength member for grounding.

| Fiber| Exterior wall Waterproof tape

__

3 m

__

| CAUTION
---|---|---|---
During onsite operations, ensure that optical fibers are force-free and the bend radius is greater than 40 mm. Otherwise, services may become abnormal or even fail due to degraded signal transmission.
The fiber strength member must be securely grounded. In addition, the ground point of the fiber strength member must be at least 3 meters above the ground (which prevents manual touching), and no combustible materials are around the ground point within a distance of 0.3 m. If the fiber strength member fails to be securely grounded, it must be insulated. Otherwise, the fiber strength member may introduce heavy currents if it connects to a heavy- current power line, threatening human safety.

Grounding solution 2: The fiber strength member is grounded inside a network box.
The fiber strength member must be connected to a ground bar at the ground point using a ground cable. The ground point can connect to the network box using a metal in an equipotential manner. When the fiber strength member connects to a heavy-current power line, heavy currents may be discharged inside the network box using the ground bar. If this happens, sparks may occur at the contact point between the fiber strength member and the ground bar, which may burn the device and the network box. To prevent this issue from occurring, use solution .

| | CAUTION
---|---|---
If the ground bar of the network cabinet fails to securely ground, ensure that the fiber strength member is disconnected from the ground bar and that the fiber strength member is properly insulated. Otherwise, heavy currents may be discharged using the network ports on the local and peer devices, which may damage these network ports.

Routing cables

Step1 Routing PGND cable and power cable

CAUTION
Correct ground cable connection ensures surge and interference protection. Therefore, ensure that the device connects to the ground properly. If the device does not connect to the ground properly, the device may be damaged due to lightning strikes, services carried on the device may become abnormal, and even personal safety is threatened.

Step2 Routing network cable

CAUTION
Network cables cannot be directly used to connect FE or GE ports between the MA5821 and MA5822.
If they are directly connected, FE or GE ports will be deactivate when the ring check function is enabled.

If FE or GE ports are deactivated, perform the following to activate them:

1. Run the display ring check record command to query whether a ring network is formed on ports.
2. Disconnect the network cable if a ring network is formed on ports.
3. Run the undo shutdown command to activate the port or run the ring check resume-interval command to set the automatic port activation time to activate the port.

Step3 Routing POTS cable （Only MA5822 support） Step4 (Optional) Route the GE splitter cable.
When the MA5822 needs to be used with the GE splitter, connect the cable as shown in the following figure.

Note
On the device side, cores of the POTS cable need to be crimpted by using the RJ11 connector.
Step5 Routing optical fiber

Description of LEDs

The MA5821/MA5822 provides a variety of indicators on its panel to help users learn about the running status of the device.

Table 5-1 Indicators on the MA5821/MA5822

Table 5-1 describes the indicators on the MA5821/MA5822

RUN/ALARM：

running status indicator

| Red blinking 0.25s on and 0.25s off| The device is starting up.
green blinking 1s on and 1s off| The device is functioning properly.
Green on| The device is faulty.
Indicator| Description
---|---
LINK: uplink status indicator| Green on| The optical port is receiving optical signal.
green blinking 0.25s on and 0.25s off| The optical port is working in continuous mode.
Green off| The optical port is not receiving optical signal or no connection is set up.
AUTH: Certification indicator| green blinking 0.25s on and 0.25s off| The device is registering.
green blinking 1s on and 1s off
When the LINK and AUTH lights at the same time the green blinking 1s on and 1s off , indicating that the MA5821/MA5822

device is a rogue ONU state.

| The mode being used on the port is incorrect.
Green on| The optical port has successfully registered with the upper layer device.
Green off| No optical fiber is connected to the device/
GE: Electrical interface status indicator| Green on| A connection is set up on the port.
Green off| No connection is set up on the port.
Yellow on| The port is transmitting or receiving data.
Yellow off| No data is transmitted or received on the port.
Indicators of the POTS port (only the MA5822 supports this port and LED)| Green: on| A minimum of one service port is busy.
Green: off| All the ports are idle.
PoE: Ethernet power| Green: on| Power over Ethernet is power on.
Indicator| Description
---|---

• status indicator(only the MA5821 24GE
• POE supports this port and LED)

| Green: off| Power over Ethernet is power off.

References

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