Huawei MA5833-BS60 User manual

MA5833-BS60
Hardware Commissioning Guide
Issue 01
Date 2018-12-12
HUAWEI TECHNOLOGIES CO., LTD.

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Issue 01 (2018-12-12) Copyright © Huawei Technologies Co., Ltd. i

Contents
1 Checking Upstream Optical Port Optical Power.....................................................................1
2 Commissioning the Optical Power of the Optical Receiver................................................. 3
3 Commissioning the Output Optical Power of the Optical Transmitter............................. 5
4 Configuring the Output of the RF Ports................................................................................... 7
5 Adjusting the Signal Level........................................................................................................ 13
6 Configuring Intelligent RF Adjustment................................................................................. 16
6.1 Configuring Manual Intelligent RF Adjustment (MA5833-BS60).............................................................................. 16
6.2 Configuring Automatic Intelligent RF Adjustment (DOCSIS 3.1)..............................................................................23
6.3 Configuration Example (Automatic Adjustment, DOCSIS 3.1).................................................................................. 24
6.4 Configuration Example (Manual Adjustment, MA5833-BS60).................................................................................. 26
7 Checking Device Running.........................................................................................................30
MA5833-BS60
Hardware Commissioning Guide Contents
Issue 01 (2018-12-12) Copyright © Huawei Technologies Co., Ltd. ii

1 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-BS60
Hardware Commissioning Guide 1 Checking Upstream Optical Port Optical Power
Issue 01 (2018-12-12) Copyright © Huawei Technologies Co., Ltd. 1

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-BS60
Hardware Commissioning Guide 1 Checking Upstream Optical Port Optical Power
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2 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.
MA5833-BS60
Hardware Commissioning Guide
2 Commissioning the Optical Power of the Optical
Receiver
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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.
Table 2-1
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-BS60
Hardware Commissioning Guide
2 Commissioning the Optical Power of the Optical
Receiver
Issue 01 (2018-12-12) Copyright © Huawei Technologies Co., Ltd. 4

3 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.
MA5833-BS60
Hardware Commissioning Guide
3 Commissioning the Output Optical Power of the Optical
Transmitter
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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
2 1.58
----End
MA5833-BS60
Hardware Commissioning Guide
3 Commissioning the Output Optical Power of the Optical
Transmitter
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4 Configuring the Output of the RF Ports
After pluggable components JUMPER/SPL/TAP-8/TAP-12 are inserted into a combiner on
the MA5833, output ports and the level difference between the ports can be adjusted.
J1/J2/J3 on the combiner of the MA5833 can be configured as pluggable components
JUMPER/SPL/TAP-8/TAP-12. You can run the display cable rf-power downstream
command to query the type of a pluggable component remotely.
The MA5833 provides 4 RF output ports, which are logically divided into 2 groups. RF
OUT0 and RF OUT1 are in group 0, and RF OUT2 and RF OUT3 are in group 1.
Figure 4-1shows the appearance of JUMPER/SPL/TAP-8/TAP-12.
MA5833-BS60
Hardware Commissioning Guide 4 Configuring the Output of the RF Ports
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Figure 4-1 Appearance of the JUMPER/SPL/TAP-8/TAP-12
Generally, you are advised to perform the configuration as follows.
Component Type
Supported by J1
Component Type
Supported by J2
Component Type
Supported by J3
Output Port
SPL/
TAP-8/TAP-12
SPL SPL 4 RF output ports
SPL/
TAP-8/TAP-12
JUMPER JUMPER RF OUT3
RF OUT1
JUMPER JUMPER Default RF OUT3
After pluggable components JUMPER/SPL/TAP-8/TAP-12 are inserted, the insertion loss
parameters of primary and secondary paths are as follows.
Component
Type
Insertion Loss
on the Primary
Path (Default)
Insertion Loss on the
Secondary Path
(Default)
Difference Between
the Primary and
Secondary Paths
JUMPER 0.5 dB N/A N/A
SPL 4 dB 4 dB 0 dB
TAP-8 2 dB 8 dB 6 dB
TAP-12 1.5 dB 12 dB 10.5 dB
MA5833-BS60
Hardware Commissioning Guide 4 Configuring the Output of the RF Ports
Issue 01 (2018-12-12) Copyright © Huawei Technologies Co., Ltd. 8

NOTE
To enable the output levels of RF output ports to be different, you are advised to configure J1 as TAP-8
or TAP-12. In this case, RF OUT2 and RF OUT3 (in group 1) are on the primary path, and RF OUT0
and RF OUT1 (in group 0) are on the secondary path. The level of the primary path is higher than that of
the secondary path.
Suggestions on Configuring the Output Ports and Level Difference of the MA5833
Based on the level planning and application of an HFC network and the design of a traditional
optical receiver amplifier, you can perform configuration in the following scenarios.
lIf 4 RF output ports are required, configure J2/J3 as SPL by default. The reference
configuration of J1 is as follows.
Level Difference Between Group 0
and Group 1
J1 J2 J3
0–3 dB SPL SPL SPL
4–8 dB TAP-8 SPL SPL
9–12 dB TAP-12 SPL SPL
NOTE
The level of Group 1 is higher than that of Group 0
lIf 2 RF output ports are required and the output levels are high, configure J2/J3 as
JUMPER. The output ports are RF OUT3 and RF OUT1. (After this configuration, the
maximum level is 3.5 dB higher than that of 4 output ports.) The reference configuration
of J1 is as follows.
Level Difference
Between RF
OUT3 and RF
OUT1
J1 J2 J3
0–3 dB SPL JUMPER JUMPER
4–8 dB TAP-8 JUMPER JUMPER
9–12 dB TAP-12 JUMPER JUMPER
NOTE
The level of RF OUT3 is higher than that of RF OUT1.
Suggestions on Configuring the MA5833 in Typical Replacement Scenarios
a. Replacing a Fiber Node or Amplifier with the MA5833
MA5833-BS60
Hardware Commissioning Guide 4 Configuring the Output of the RF Ports
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An HFC network device, such as a fiber node or amplifier, adjusts output ports and
the level difference between the ports using JUMPER/SPL/TAP-8/TAP-12.
The procedure is as follows:
i. Obtain the output module (JUMPER/SPL/TAP-8/TAP-12) configuration of a
fiber node or amplifier in advance.
ii. Configure J1 on the MA5833 to the same as that of fiber nodes or amplifiers
on the live network.
iii. On the MA5833, configure J2/J3 as 2 SPLs to obtain 4 RF output ports, or
configure J2/J3 as 2 JUMPERs to obtain 2 high-level RF output ports.
iv. Remotely adjust the values of EQ2 and ATT3, and set the levels of RF output
ports to the planned target value.
b. Replacing the MA5633 with the MA5833
MA5833-BS60
Hardware Commissioning Guide 4 Configuring the Output of the RF Ports
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nThe MA5833 and MA5633 provide 4 RF output ports, which can be divided
into group 0 and group 1. Two ports (J2 and J3) in a group can be configured
as pluggable component SPL or JUMPER. The MA5633 does not support
TAP-8 or TAP-12.
nThe output levels of 2 groups on the MA5633 can be adjusted using ATT3 and
ATT4. The levels of RF ports in 2 groups on the MA5833 can be adjusted
using ATT3. The level difference between the 2 groups can be adjusted only
by configuring J1 as pluggable component SPL/TAP-8/TAP-12.
nThe procedure is as follows:
1) Obtain the MA5633 configuration in advance. You can run a command to
query the actual value of ATT3/ATT4.
2) The value difference between ATT3 and ATT4 can be used to calculate
the level difference between group 0 and group 1.
3) Configure J1 on the MA5833 based on the level difference. (For details,
see the configuration suggestions of J1.) (Note: The MA5633 is installed
to replace a fiber node or amplifier on the live network. Based on the
network design, the level difference between 2 groups is generally 0, 6, or
10 dB.)
MA5833-BS60
Hardware Commissioning Guide 4 Configuring the Output of the RF Ports
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4) Remotely adjust the values of EQ2 and ATT3 on the MA5833 and set the
RF port levels to the planned target value.
MA5833-BS60
Hardware Commissioning Guide 4 Configuring the Output of the RF Ports
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5 Adjusting the Signal Level
The MA5833 supports intelligent RF adjustment. You can use the CLI or NMS to set the
following adjustment items remotely.
The downstream output power can be adjusted manually and automatically.
lIn automatic adjustment, the expected output power of an RF port needs to be configured
first. Then, the system measures the actual output power of the RF port and
automatically adjusts the attenuator and equalizer of the combiner.
lIn manual adjustment, the attenuator and equalizer of the combiner can be configured
directly.
NOTE
lOne of these two adjustment modes can be used in actual configurations.
lIt is recommended that you use the manual adjustment mode.
Only manual adjustment is supported in the upstream direction. You can directly set the
attenuation and equalization values in the upstream direction of the frequency mixer.
For details about Configuring Intelligent RF Adjustment , see the "6 Configuring Intelligent
RF Adjustment".
After intelligent RF adjustment on the MA5833, the RF indicator on the combiner turns
green.
MA5833-BS60
Hardware Commissioning Guide 5 Adjusting the Signal Level
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Furthermore, you can see the following test points to measure the level of upstream and
downstream signals.
No. Test
point
Function Test point relative level
and precision
1 RX TP. Tests levels of CATV signals. -20±0.75 dB
NOTE
The value is the attenuation
value of the test point relative
to the Rx output.
5 TX0 TP. Tests levels of input signals of TX0. -20±0.75 dB
NOTE
The value is the attenuation
value of the test point relative
to the Tx input.
4 TX1 TP. Tests levels of input signals of TX1.
2 FWD
TP.0
Tests levels of combined DOCSIS
downstream and CATV signals in RF0
and RF1 channels.
l-20±0.75 dB (using
jumper)
l-16.5±0.75 dB (using
splitter by default)
NOTE
The value is the attenuation
value of the test point relative
to the RF OUT port.
3 FWD
TP.1
Tests levels of combined DOCSIS
downstream and CATV signals in RF2
and RF3 channels.
6 REV TP.
0
Tests levels of upstream signals in RF0
and RF1 channels.
l-20±0.75 dB (using
jumper)
MA5833-BS60
Hardware Commissioning Guide 5 Adjusting the Signal Level
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No. Test
point
Function Test point relative level
and precision
7l-23.5±0.75 dB (using
splitter by default)
NOTE
The value is the attenuation
value of the test point relative
to the RF OUT port.
REV TP.
1
Tests levels of upstream signals in RF2
and RF3 channels.
8 12V
TP.
12V DC amplifier power supply test
point
-
9 34V
TP.
34V DC amplifier power supply test
point
-
10 60V
TP.
60 V input power test point -
MA5833-BS60
Hardware Commissioning Guide 5 Adjusting the Signal Level
Issue 01 (2018-12-12) Copyright © Huawei Technologies Co., Ltd. 15

6 Configuring Intelligent RF Adjustment
The MA5833 supports intelligent RF adjustment. You can use the CLI or NMS to set the
following adjustment items remotely.
The downstream output power can be adjusted manually and automatically.
lIn automatic adjustment, the expected output power of an RF port needs to be configured
first. Then, the system measures the actual output power of the RF port and
automatically adjusts the attenuator and equalizer of the combiner.
lIn manual adjustment, the attenuator and equalizer of the combiner can be configured
directly.
NOTE
lOne of these two adjustment modes can be used in actual configurations.
lIt is recommended that you use the manual adjustment mode.
Only manual adjustment is supported in the upstream direction. You can directly set the
attenuation and equalization values in the upstream direction of the frequency mixer.
6.1 Configuring Manual Intelligent RF Adjustment (MA5833-BS60)
6.2 Configuring Automatic Intelligent RF Adjustment (DOCSIS 3.1)
This topic describes how to configure automatic intelligent radio frequency (RF) adjustment
on the command-line interface (CLI), to provide expected output signal transmit power for the
device based on the configuration and automatically adjust the equalization and attenuation
values. This topic is applied to DOCSIS 3.1 device.
6.3 Configuration Example (Automatic Adjustment, DOCSIS 3.1)
This topic describes an example for configuring automatic intelligent radio frequency (RF)
adjustment. This topic is applied to DOCSIS 3.1 device.
6.4 Configuration Example (Manual Adjustment, MA5833-BS60)
This section provides an example to describe how to manually adjust RF.
6.1 Configuring Manual Intelligent RF Adjustment
(MA5833-BS60)
This topic describes how to manually adjust the equalization and attenuation values of
upstream and downstream signals for a combiner.
MA5833-BS60
Hardware Commissioning Guide 6 Configuring Intelligent RF Adjustment
Issue 01 (2018-12-12) Copyright © Huawei Technologies Co., Ltd. 16

Suggestion
When running the cable downstream rf-power command to configure the Tx power of the
downstream coaxial media converter (CMC) channels, set this Tx power to its maximum
value. For example, the Tx power under full spectrum is 34 dBmV.
Context
The following figure shows the functional modules required for intelligent RF adjustment.
Figure 6-1 Functional modules
Table 6-1 describes the functional modules.
Table 6-1 Functions of the modules
Module Function Description
ATT1 Indicates the adjustable attenuator of
downstream DOCSIS signals.
ATT2 Indicates the adjustable attenuator of
downstream CATV signals.
MA5833-BS60
Hardware Commissioning Guide 6 Configuring Intelligent RF Adjustment
Issue 01 (2018-12-12) Copyright © Huawei Technologies Co., Ltd. 17