1ISSUE 2.2
Upon completion of this course, you will be able to:
Understand the concepts of hardware configuration
Perform the procedures of hardware configuration
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Chapter 3 Cascading Relationship
Chapter 4 Configure Clock
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Methods for Data Configuration
Execute Man-Machine Language (MML) commands. This is the most
common method and is applicable for all data configuration.
Use graphic interface provided by equipment panel for data
configuration. This method is mainly applicable for data
configuration of hardware (frames and boards). Its advantage is
direct viewing and disadvantage is that it is applicable only for
part of data configuration.
Execute data configuration scripts. Huawei compiles data
configuration into a script file and you only need to execute the
script file to complete data configuration.
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Hardware and software installation
Before configuration, make sure that equipment powers on and
operates normally, and that correct software version is
loaded.
2
Equipment panel configuration diagram
Providing information about the type, position and number of a
cabinet, frame and board
3
4
5
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This chapter emphasis on procedures for data configuration and
methods for data configuration.
Summary
Chapter 3 Cascading Relationship
Chapter 4 Configure Clock
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2.2 Configure Boards
Frame Configuration in Cabinets
The Nos. of cabinets start from 0. Frames are numbered according to
their locations in a cabinet, from bottom to top. Namely, the three
frames from bottom to top in cabinet 0 are numbered 0, 1 and 2
respectively; the three frames from bottom to top in cabinet 1 are
numbered 3, 4 and 5 respectively. Frames in other cabinets follow
the same numbering order.
Each cabinet can hold three frames at most. If all the TDM
interface boards in frames use E1 or T1 interfaces, each cabinet
can hold two service frames at most for the convenience of
installation and cabling.
The central switching frame and control frame have no TDM service
interface. Therefore, the cabinet where the central switching frame
or control frame is located can hold three frames, which does not
affect the installation and cabling.
The frames in a cabinet are usually placed and numbered from bottom
to top. If there is only one frame in a cabinet, the frame shall be
placed in the middle of the cabinet for the convenience of
monitoring the power distribution system.
The main control frame is configured by default. It manages and
maintains the whole UMG8900 while providing services. The main
control frame is always numbered 1 and cannot be assigned with any
other No.
The configured frame No. must be the same with the No. decided by
the DIP switch. Otherwise, loading software and data to the frame
will fail.
The main control frame is configured by default and its No. is
fixed as “1”. You cannot add or delete it.
If the networking requires an independent central switching frame,
its frame No. is 0.
The control frame is needed only for large capacity configuration.
Its frame No. is 8.
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Reset a frame
The Nos. of cabinets start from 0. Frames are numbered according to
their locations in a cabinet, from bottom to top. Namely, the three
frames from bottom to top in cabinet 0 are numbered 0, 1 and 2
respectively; the three frames from bottom to top in cabinet 1 are
numbered 3, 4 and 5 respectively. Frames in other cabinets follow
the same numbering order.
Each cabinet can hold three frames at most. If all the TDM
interface boards in frames use E1 or T1 interfaces, each cabinet
can hold two service frames at most for the convenience of
installation and cabling.
The central switching frame and control frame have no TDM service
interface. Therefore, the cabinet where the central switching frame
or control frame is located can hold three frames, which does not
affect the installation and cabling.
The frames in a cabinet are usually placed and numbered from bottom
to top. If there is only one frame in a cabinet, the frame shall be
placed in the middle of the cabinet for the convenience of
monitoring the power distribution system.
The main control frame is configured by default. It manages and
maintains the whole UMG8900 while providing services. The main
control frame is always numbered 1 and cannot be assigned with any
other No.
The configured frame No. must be the same with the No. decided by
the DIP switch. Otherwise, loading software and data to the frame
will fail.
The main control frame is configured by default and its No. is
fixed as “1”. You cannot add or delete it.
If the networking requires an independent central switching frame,
its frame No. is 0.
The control frame is needed only for large capacity configuration.
Its frame No. is 8.
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2.2 Configure Boards
Limitation on front and back boards :
front board: OMU, MPU, RPU, ASU, FLU, TCU, ECU, SPF and MCMF in the
CMU.
back board: NET, CLK, TNU, TCLU, PPU, E8T, E1G, P4L, P1H, A4L, EAC,
TAC, BLU, E32, T32, S2L and MCMB in the CMU.
Limitation on opposite positions :
Rules for Configuring Boards
Limitation on fixed positions :
OMU, It is inserted in front slot 7 or 8 in main control
frame.
MPU, It is inserted in front slot 7 or 8 of a frame except the main
control frame.
NET, It is inserted in back slot 7 or 8.
CLK It is inserted in back slot 0 or 1 in main control frame.
FLU, BLU, It is inserted in a back slot of the central
switching
TNU, It is inserted in back slot 6 or 9.
TCLU, It is inserted in back slot 6 or 9 of main control frame or
service frame.
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Default configuration :
The OMU and NET in the main control frame and the MPU and NET in
other frames are configured by default. You do not need to
configure these boards and cannot delete them.
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Work modes :
1+1 backup :OMU, MPU, NET, CLK, TNU, TCLU, CMU, RPU, ASU, BLU
Load sharing :PPU, E8T, E1G, P4L, P1H, A4L, EAC, TAC, TCU, ECU,
SPF, E32, T32, FLU
Load sharing or 1+1 backup :S2L
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Rules for Configuring Boards
Limitation on board No. :
All OMU, MPU and CMU boards are numbered uniformly. number for all
OMU and MPU boards are generated automatically. The OMU board
number is 0. The MPU board in frame 0 is numbered 1. The board
numbers for other MPUs are the same with the numbers of the frames
where they are located, ranging from 2 to 28. CMU boards are
numbered from 31 to 61.
For a board in the 1+1 backup mode, its board type and number must
be the same with those of the board in the paired slot. For
example, if an FLU board in the 1+1 backup mode is in slot 12, the
board in slot 13 must also be FLU and the numbers. of the two
boards must be the same.
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Rules for Configuring Boards
Limitation on board No. :
Paired slots refers to slots 0 and 1, slots 2 and 3, slots 4 and 5,
slots 6 and 9, slots 7 and 8, slots 10 and 11, slots 12 and 13 as
well as slot 14 and 15.
You do not need to specify the master board in the two boards
working in the 1+1 backup mode. When the system starts up, the
master is determined through the contention mechanism. Usually the
board that is started first is the master and the other one the
slave.
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summary
Chapter 3 Cascading Relationship
Chapter 4 Configure Clock
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TDM, GE connection is for transferring service data
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summary
Chapter 3 Cascading Relationship
Chapter 4 Configure Clock
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CLOCK SYSTEM
The UMG8900 clock system provides can provide gateway exchange and
local exchange with Stratum-3 or Stratum-2 Clock
The CLK board can extract CLK Source from:
Two-channel 8 kHz line clock
TDM interface boards, PCM
from BITS, Building Integrated Timing Supply System
GPS/GLONASS:
GPSGlobal Positioning System
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Manual selection. In manual selection mode,
the CLK board only traces primary reference source specified.
Automatic selection
without SSM control.
SSM
SSM code consist of 4 bit, one multi-frame consist of 8 odd frame
and 8 even frame. Each odd frame provide one bit to transfer SSM
code and one multi-frame can transfer 2 SSM code. In fact , the
first 4 odd frame repeat the first 4 odd frame SSM code.
Priority: PRCTNCLNCSECSTUDUS
SSM Code
GPSGlobal Positioning System
Extract line clock reference source 1 from TDM interface board
Connect 8K_OUT interface of TDM interface board (including
E32/T32/S2L/P4L/P1H) with 8K-IN1 interface of master and standby
CLK board through 8K clock cable (X1 plug of 8K clock cable
connects TDM interface board side and X2/X3 plug connects the CLK
board side)
Extract line clock reference source 2 from TDM interface board Same
as above
Extract external synchronous reference source from BITS equipment
Connect 2M_IN interface of the CLK board with clock output
interface of BITS equipment through 2M clock cable
Extract reference source from GPS Connect ANT interface of the CLK
board with GPS satellite antenna through GPS clock cable (satellite
card needs to be inserted in the CLK board)
Clock distribution to frames except main control frame Connect
CLK-OUT interface of the CLK board with CLK-IN interface of the NET
board through clock distribution cable (CLK0_IN and CLK1_IN
interfaces of the NET board correspond the CLK_OUT interfaces of
master and standby CLK board respectively; X1 plug of clock
distribution cable connects the CLK board side and X2-X7 plugs
connect the NET board side)
Clock output Connect 2M_OUT interface of the CLK board with clock
input interface of clock receiving equipment through 2M clock
cable
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End
No
No
No
Yes
Yes
Yes
Start
Before configuring clock, you need to determine the networking mode
of clock synchronization. For example, whether the system adopts
clock signals from the CLK board or extracts clock signals from
reference source. If the system extracts clock signals from
reference source, you need to determine the mode of reference
source selection and clock output to other equipment. Only after
you decide the networking mode of clock synchronization and connect
physical cables according to the networking mode, you can start to
configure clock.
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Under SSM control?
No
No
No
Yes
Yes
Yes
n this stage, you shall configure the priority among the four
reference sources of GPS, line clock 1, line clock 2 and external
synchronous reference source, the type of external synchronous
reference source, whether to force SSM level and SSM level of
external synchronous reference source.
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DSP CLK/LST CLK
Display/List CLK board configuration information
[Priority of GPS Reference Source], [Priority of External
Synchronous], [Priority of Line Clock 1], [Priority of Line Clock
2]: Specify the priority of the four reference sources according to
actual mode of clock synchronization networking to serve as the
basis of switching between reference resources. The value can be
“FIRST (The First Level)”, “SECOND (The Second Level)”, “THIRD (The
Third Level)” or “FOURTH (The Fourth Level)”, indicating priority
in descending order.
When independent CLK boards are adopted, all of the above reference
sources are supported. The sub board of the TNC supports only three
except the GPS reference source.
The first level has the highest priority, the second level lower,
and the others follow the same principle. Note that the four
reference sources must be configured with different
priorities.
By default, the above four parameters are set as “The First Level”,
”The Second Level”, “The Third Level” and “The Fourth Level”
respectively. That is, the GPS reference source has the highest
priority, the external synchronous reference source lower, and the
line clock 2 has the lowest priority.
[Type of External Synchronous]: Can be “Ext2MHz (2 MHz)” or
“Ext2MBit (2 Mbits/s)”.
[Force SSM Level or Not of External Synchronous]: Indicates whether
to force SSM level of external synchronous reference source
manually or extract SSM level from E1 time slot. Extracting SSM
level is valid only for “2 Mbits/s” external synchronous reference
source. When the type of external synchronous source is “2 MHz”,
this parameter value can only be “Forcing SSM level”.
[SSM Level of External Synchronous]: Configures the SSM level of
external synchronous reference source to serve as the basis of
selecting reference source. It is valid only when external
synchronous reference source is in “Forcing SSM level” mode. If
external synchronous reference source is in “Getting SSM level”
mode, the SSM level is extracted from E1 time slot instead of being
specified manually.
[SSM Time Slot of External Synchronous]: When external synchronous
reference source is “2 Mbits/s” and is in “Extracting SSM level”
mode, the system extracts SSM information from E1 time slot.
According to ITU-T G.704, the operator can select one of the five
bits from Sa4 to Sa8 of time slot 0 in even CRC4 frames for bearer
of SSM information. You can configure this parameter according to
actual selection of time slot.
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DSP CLK/LST CLK
Query external synchronous output clock signals
[Board Type]: Specify the board through which the clock reference
source is imported.
[Select Mode of Reference Source]: Indicates whether to select
automatically or specify manually the external clock reference
source.
Auto: The CLK board selects external clock reference source
automatically according to the configured priority. If error occurs
in master reference source, the CLK board can select standby
reference source according to the priority.
Manual: The CLK board can only select the external reference source
specified manually.
[Clock Level]: Needs to be configured only when the independent CLK
boards are adopted. It refers to the level of the clock that the
CLK board outputs to the frames within this equipment or to other
equipment. It can be “Level Two” or “Level Three”.
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SET LINECLK
Configure the port from which the CLK board extracts line clock
reference source
[Line Clock]: Refers to the line clock type on the CLK board. It
can be “LINE1” or “LINE2”.
[Board Type], [Board No.] and [Port No.]: Indicate from which port
and from which TDM interface board the CLK board extracts link
clock source.
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After clock configuration, you can query clock data configuration
including phase-lock status by the command DSP CLK. The value of
phase-lock status can be:
Free running: Indicates that the CLK board outputs free running
clock generated by its crystal.
Fast tracking: Indicates that the CLK board is tracking reference
source clock fast and is an instantaneous status usually when the
system just connects the reference source.
Locked: Indicates that the CLK board has locked primary reference
source and outputs clock signals aligned with reference
source.
Holdover: Indicates that the CLK board outputs clock signals based
on the locked status when reference source is missing.
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summary
Course summary
The course introduces some concepts of hardware data configuration
and the procedures, including adding frames, configuring boards and
configuring clock.
Hope everybody can make a good fundamental on data configuration
with this course.
summary
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