Huawei MA5833 User manual

MA5833-DD60
Hardware Commissioning Guide
Issue 01
Date 2018-12-26
HUAWEI TECHNOLOGIES CO., LTD.

Copyright © Huawei Technologies Co., Ltd. 2019. All rights reserved.
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Huawei Technologies Co., Ltd.
Address: Huawei Industrial Base
Bantian, Longgang
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People's Republic of China
Website: http://www.huawei.com
Email: [email protected]
Issue 01 (2018-12-26) Copyright © Huawei Technologies Co., Ltd. i

Contents
1 Measuring the 60 V AC Output Voltage...................................................................................1
2 Checking Upstream Optical Port Optical Power.....................................................................3
3 Commissioning the Optical Power of the Optical Receiver................................................. 5
4 Commissioning the Output Optical Power of the Optical Transmitter............................. 7
5 Adjusting the Signal Level.......................................................................................................... 9
5.1 Adjusting the CATV Signal Level..................................................................................................................................9
5.2 Adjusting the Downstream DOCSIS Signal Level.......................................................................................................11
5.3 Adjusting the Upstream DOCSIS Signal Level........................................................................................................... 12
6 Checking Device Running.........................................................................................................15
MA5833-DD60
Hardware Commissioning Guide Contents
Issue 01 (2018-12-26) Copyright © Huawei Technologies Co., Ltd. ii

1 Measuring the 60 V AC Output Voltage
NOTE
lIf the MA5833 needs to transmit power to a lower-layer device, check the 60 V power pass-through
indicator to identify whether the 60 V output power supply is available. The indicator is on
when power is transmitted through a port.
lCheck the 12 V DC and 34 V DC power supply indicator .The indicator is on when the power
supply is within the specified range.
lAlternatively, test whether the voltage on the test point of the 12 V DC and 34 V DC power
supply meets requirements. To do so, adjust the multimeter for the DC voltage test, connect the
black probe of the multimeter to the metal place on the front panel, and connect the red probe to the
test point of the 12 V DC and 34 V DC power supply.
MA5833-DD60
Hardware Commissioning Guide 1 Measuring the 60 V AC Output Voltage
Issue 01 (2018-12-26) Copyright © Huawei Technologies Co., Ltd. 1

Voltage Test Points and Indicators on MA5833
MA5833-DD60
Hardware Commissioning Guide 1 Measuring the 60 V AC Output Voltage
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2 Checking Upstream Optical Port Optical
Power
lWhen measuring upstream optical port optical power, do not stand close to or look into the
optical port without eye protection.
lThe Rx optical power of the upstream optical port on the MA5833 must be within the Rx
optical power range. Otherwise, the optical module will be damaged (excessively high Rx
optical power) or cannot receive signals properly (excessively low Rx optical power).
lWhen the receive optical power is close to the critical value, the MA5833 can be
functional for a short period of time. To ensure that the MA5833 is functional for a long
period of time, adjust the receive optical power.
Step 1 Set the wavelength of an optical power meter to 1490 nm and use it to measure the output
power on optical fibers.
Step 2 If the test result exceeds the preceding range, use an optical attenuator on the OLT side to
decrease the input optical power of the MA5833.
Step 3 Measure and verify that the input optical power of the MA5833 is within the supported range.
MA5833-DD60
Hardware Commissioning Guide 2 Checking Upstream Optical Port Optical Power
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Upstream Mode Range of the Rx Optical Module
GPON -8 dBm to -27 dBm
10G GPON -8 dBm to -28 dBm
GE -3 dBm to -19.5 dBm
10GE -1 dBm to -11.1 dBm
lRanges of the Rx optical power of the upstream port may be different according to
optical modules of different types used in the same upstream direction. Specifications of
the actual optical module prevail.
lIf the test result exceeds the upper limit of the Rx optical power, optical attenuator can be
added on the ONU side to reduce the input optical power of the MA5833.
----End
MA5833-DD60
Hardware Commissioning Guide 2 Checking Upstream Optical Port Optical Power
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3 Commissioning the Optical Power of the
Optical Receiver
NOTE
The following introduces how to use a multimeter to measure the optical power. You can also use an
optical power meter to measure the optical power of the optical receiver.
Step 1 Adjust the multimeter for the DC voltage test. Connect the black probe of the multimeter to
the screw on the front panel and connect the red probe to the optical power test point of the
optical receiver to measure the DC voltage. Obtain the optical power from the following table
based on the measured voltage.
Figure 3-1
Step 2 The input optical power ranges from -8 dBm to 3 dBm.
lIf the input optical power is greater than 0 dBm, add a fixed optical attenuator to
decrease the receive optical power of the optical receiver.
lIf the input optical power is less than -6 dBm, check the output optical power of the
optical transmitter and whether the physical connection between the optical transmitter
and optical receiver is functional.
MA5833-DD60
Hardware Commissioning Guide
3 Commissioning the Optical Power of the Optical
Receiver
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Table 3-1
Input Optical Power
(dBm)
V DC (or mW) Recommended or Not
(Yes/No)
3 2 No
2 1.58 No
1 1.26 No
0 1 Yes
-1 0.79 Yes
-2 0.63 Yes
-3 0.5 Yes
-4 0.4 Yes
-5 0.32 Yes
-6 0.25 Yes
-7 0.2 No
-8 0.16 No
----End
MA5833-DD60
Hardware Commissioning Guide
3 Commissioning the Optical Power of the Optical
Receiver
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4 Commissioning the Output Optical Power
of the Optical Transmitter
NOTE
The following introduces how to use a multimeter to measure the optical power. You can also use an
optical power meter to measure the optical power.
Step 1 Adjust the multimeter for the DC voltage test. Connect the black probe of the multimeter to
the screw on the front panel and connect the red probe to the optical power test point of the
optical transmitter to measure the DC voltage. Obtain the optical power from the following
table based on the measured voltage.
Step 2 The output optical power ranges from 2 dBm to 4 dBm. If the input optical power is out of
this range, replace the optical transmitter.
Output Optical Power (dBm) V DC (or mW)
4 2.51
3 2
MA5833-DD60
Hardware Commissioning Guide
4 Commissioning the Output Optical Power of the Optical
Transmitter
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Output Optical Power (dBm) V DC (or mW)
2 1.58
----End
MA5833-DD60
Hardware Commissioning Guide
4 Commissioning the Output Optical Power of the Optical
Transmitter
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5 Adjusting the Signal Level
5.1 Adjusting the CATV Signal Level
5.2 Adjusting the Downstream DOCSIS Signal Level
5.3 Adjusting the Upstream DOCSIS Signal Level
5.1 Adjusting the CATV Signal Level
Step 1 Test the CATV output level on RF OUT test points.
Step 2 Adjust the attenuation brackets to enable the CATV output level to meet the requirement.
lAdjust the CATV output level through the attenuation bracket on the optical receiver.
lAlternatively, adjust the CATV output level through the attenuation bracket for the level
of the combined DS and CATV signals on the combiner.
NOTE
When the attenuation bracket for the level of the combined DS and CATV signals on the combiner
is adjusted, the DS output level is adjusted.
----End
The following figure shows the location of the test points and attenuation brackets.
MA5833-DD60
Hardware Commissioning Guide 5 Adjusting the Signal Level
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For details, see the following table.
Bracket to Be
Adjusted
Parameter to Be Adjusted Default value
(dB)
ATT5 Level of CATV signals. (Main) 0
ATT4 Level of combined CATV and downstream
DOCSIS signals.(Main)
0
ATT0 Level of combined CATV and downstream
DOCSIS signal of the RF OUT0.
4
ATT1 Level of combined CATV and downstream
DOCSIS signal of the RF OUT1.
4
ATT2 Level of combined CATV and downstream
DOCSIS signal of the RF OUT2.
4
ATT3 Level of combined CATV and downstream
DOCSIS signal of the RF OUT3.
4
No. Test point Function
TP.1 Tests level of the RF OUT0
port signal.
TP.8 Tests level of the RF OUT1
port signal.
TP.9 Tests level of the RF OUT2
port signal.
MA5833-DD60
Hardware Commissioning Guide 5 Adjusting the Signal Level
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No. Test point Function
TP.4 Tests level of the RF OUT3
port signal.
TP.2 Tests level of output signals
of RX0.
TP.3 Tests level of output signals
of RX1.
TP.7 Tests level of combined
CATV and downstream
DOCSIS signals. (Main)
5.2 Adjusting the Downstream DOCSIS Signal Level
Step 1 Test the downstream DOCSIS signal level at the test point of the RF OUT port.
Step 2 Adjust the level of the downstream DOCSIS signal through the attenuation bracket.
----End
The following figure shows the location of the test points and attenuation brackets.
For details, see the following table.
Bracket to Be Adjusted Parameter to Be
Adjusted
Default value (dB)
ATT4 Level of combined CATV
and downstream DOCSIS
signals.(Main)
0
MA5833-DD60
Hardware Commissioning Guide 5 Adjusting the Signal Level
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Bracket to Be Adjusted Parameter to Be
Adjusted
Default value (dB)
ATT0 Level of combined CATV
and downstream DOCSIS
signal of the RF OUT0.
4
ATT1 Level of combined CATV
and downstream DOCSIS
signal of the RF OUT1.
4
ATT2 Level of combined CATV
and downstream DOCSIS
signal of the RF OUT2.
4
ATT3 Level of combined CATV
and downstream DOCSIS
signal of the RF OUT3.
4
No. Test point Function
TP.1 Tests level of the RF OUT0
port signal.
TP.8 Tests level of the RF OUT1
port signal.
TP.9 Tests level of the RF OUT2
port signal.
TP.4 Tests level of the RF OUT3
port signal.
TP.7 Tests level of combined
CATV and downstream
DOCSIS signals. (Main)
5.3 Adjusting the Upstream DOCSIS Signal Level
Step 1 Confirm the CM-side output level of the RF OUT port and record it as A. Run the display
cable modem extended-tx-power command to query Extended US TX Power. A =
Upstream TX Power - cable line attenuation.
Step 2 Run the cable upstream command to configure the upstream receive level of DOCSIS
module (B). The default value is 6 dBmV.
Step 3 Input single-tone signals (20 MHz and 40 MHz) into the test points of the RF OUT port,
respectively. Set the signal level to A+20 dBuV.
MA5833-DD60
Hardware Commissioning Guide 5 Adjusting the Signal Level
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Step 4 Test the levels of the two test signals at the test point for upstream combined test signals.
Adjust the upstream attenuation tab to configure the upstream receive level to B.
----End
You can skip steps 3 and 4. Connect the CM to the RF OUT test point, enable the CM to go
online or lock the frequency in the upstream direction, and then adjust the upstream
attenuation bracket to enable the upstream Tx level of the CM to be A + 20.
The following figure shows the location of the test points and attenuation brackets on a
combiner.
Bracket to Be Adjusted Parameter to Be
Adjusted
Default value (dB)
ATT9 Level of upstream DOCSIS
signal of the RF OUT3.
0
ATT6 Level of upstream DOCSIS
signal of the RF OUT0.
0
ATT8 Level of upstream DOCSIS
signal of the RF OUT2.
0
ATT7 Level of upstream DOCSIS
signal of the RF OUT1.
0
No. Test point Function
TP.5 Tests level of input signals
of TX0.
TP.6 Tests level of input signals
of TX1.
TP.10 Tests level of upstream
signals in RF OUT3.
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Hardware Commissioning Guide 5 Adjusting the Signal Level
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No. Test point Function
TP.11 Tests level of upstream
signals in RF OUT0.
TP.12 Tests level of upstream
signals in RF OUT2.
TP.13 Tests level of upstream
signals in RF OUT1.
MA5833-DD60
Hardware Commissioning Guide 5 Adjusting the Signal Level
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6 Checking Device Running
NOTE
After commissioning the MA5833, check indicators on the MA5833 to determine whether the MA5833
is properly working.
Indicators on the MA5833-DD60 and Indicator Descriptions
Indicator Name Color Status Description
PWR Power supply
status indicator
Green On The device is
powered on.
- Off The device is
powered off.
MA5833-DD60
Hardware Commissioning Guide 6 Checking Device Running
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Indicator Name Color Status Description
RUN/ALM Running status
indicator
Red Blinking (on for
0.25 s and off
for 0.25 s
repeatedly)
The device is
starting up.
Red On The device is
faulty.
Green Blinking (on for
1 s and off for 1
s)
The device is
functioning
properly
DOCSIS_RUN D-CMTS board
status indicator
Green On The device
board
malfunctions.
Green Blinking (on for
1 s and off for 1
s)
The device
board is
functioning
properly.
DOCSIS_ACT CM status
indicator
Green On A CM is online.
- Off No CM is
online.
EQAM EQAM status
indicator
Green On EQAM is
functional.
- Off EQAM is
faulty.
LINK/
ACT(PON)
lLINK: link
status
indicator
lACT:
authenticati
on or data
status
indicator
- Off The uplink port
does not receive
optical signals
or an optical
fiber is
disconnected
from the device.
Green lLINK: On
lACT:
Blinking (on
for 0.25 s
and off for
0.25 s
repeatedly)
The device is
registering with
an OLT.
Green lLINK: On
lACT: On
The device has
registered with
an OLT.
MA5833-DD60
Hardware Commissioning Guide 6 Checking Device Running
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Indicator Name Color Status Description
Green lLINK:
Blinking (on
for 0.25 s
and off for
0.25 s
repeatedly)
lACT: Off
The optical
module of the
uplink port is
incorrect.
Green lLINK:
Blinking (on
for 0.25 s
and off for
0.25 s
repeatedly)
lACT:
Blinking (on
for 0.25 s
and off for
0.25 s
repeatedly)
The uplink port
is working in
continuous
mode.
Red lLINK: On
lACT: On
The input
optical power
of uplink port is
excessively
low.
Orange lLINK: On
lACT: On
The input
optical power
of uplink port is
excessively
high.
LINK(GE) Link status
indicator
Green On The uplink
optical port is
receiving
optical signals.
- Off The uplink port
does not receive
optical signals
or an optical
fiber is
disconnected
from the device.
ACT(GE) Authentication
or data status
indicator
Green Blinking (on for
0.25 s and off
for 0.25 s
repeatedly)
The port is
transmitting or
receiving data.
MA5833-DD60
Hardware Commissioning Guide 6 Checking Device Running
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