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Oct. 25 2007
HUAWEI TECHNOLOGIES Co., Ltd.
www.huawei.com
HUAWEI Confdential
Internal Use (Only)
GSM BSS Training Team
HUAWEI BSC6000
Hardware Structure and
System Description
ISSUE 30
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HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confdential Page 2
This course describes the hardware structure of
the U!"#I $%&'000 system board module
functions system oerating rinciles system
signal flows and O*+ flows. In addition this
course describes the rinciles of hardware
configuration and lists some tyical
configurations.
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HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confdential Page 3
!e"erence
HUAWEI BSC6000 Hardware Reference
HUAWEI BSC6000 System Description
HUAWEI BSC6000 Architecture and rincip!es
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HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confdential Page 4
#urpose
A"ter $earnin% t&is course' you s&ou$d understand
t&e "o$$owin% contents(
U!"#I $%&'000 function and features
U!"#I $%&'000 hardware structure U!"#I $%&'000 system rincile
U!"#I $%&'000 tyical configuration
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HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confdential Page 5
C&apter ) System Description
C&apter * Hardware Structure
C&apter 3 Wor+in% #rincip$e
C&apter , -ypica$ Con"i%uration
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HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confdential Page
!SC
PCU
GGSNSGSN
+%& ,-
"S
"S
"S
"S
!TS
!TS
!TS
A
P#
G#
G$
U" A#i$
The U!"#I $%&'000 is a new generation %+ $%& roduct after the U!"#I
$%&/2.
.ocation o" t&e BSC6000 in t&e GSM /etwor+
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eatures o" t&e BSC6000 System
.ar%e capacity' &i%& inte%ration
%uorting at most 201T-3
+a4imum of traffic 6/000 #rl3 $&! /5000003
ull8configuration subscriber '50 000
In case of using the #6 interface board a ma4imum of the system is four
rac9s
In case of using the %T+86 interface board a ma4imum of the system is
three rac9s
$e1i2$e con"i%uration
%uorting multile tyes of networ9ing between $%&s and $T%s
le4 !bis
%er:ice8oriented hardware configuration
+ultile cloc9 sources
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eatures o" t&e BSC6000 System
Compre&ensie "unctions4 adanced mana%ement a$%orit&m "or radio resource
The ser:ice functions is categori;ed into basic functions and otional functions. To rotect
in:estment the customer choose roer functions that are alied to a secified networ9
function and caacity.
"
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HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confdential Page '
eatures o" t&e BSC6000 System
Smoot& capacity e1pansion and up%rade
%uorting smooth in8ser:ice caacity e4ansion
%uorting in8ser:ice atching
Stron% per"ormance' adanced desi%n
%uorting 2+ signaling lin9
%uorting local multile signaling oints
%uorting T& resource ool
%uorting full8inde4 reort erformance statistics
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HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confdential Page ()
This chater describes the following contents
> ?esign mentality of the U!"#I $%&'000 system
> %ystem secifications> unctions and eatures
SummarySummary
Summary
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HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confdential Page ((
C&apter ) System Description
C&apter * Hardware Structure
C&apter 3 Wor+in% #rincip$e
C&apter , -ypica$ Con"i%uration
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HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confdential Page (2
C&apter * Hardware Structure
-ac9 and %ubrac9
$oard
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HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confdential Page (3
A22reiation
A22reiation u$$ /ame
GBC! %+ $%& &ontrol =rocessing -ac9
GBS! %+ $%& %er:ice =rocessing -ac9
GBAM %+ $ac9 !dministration +odule
GE#S %+ #4tended =rocessing %ubrac9
GM#S %+ +ain =rocessing %ubrac9
G-CS %+ Trans&oder %ubrac9
GIMS %+ Integrated +anagement %ystem
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HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confdential Page (4
Structure o" !ac+
Mode$( The $%&'000 uses U!"#I @'1822 rac9. The rac9 design
comlies with the I#&'02A7 and I### standards.
Structure
?imension '00mm (width) 4100mm (deth) 4 2200mm (height)
"eight #mty rac9 B 6509g3 full configuration B/509g
-ype
The $%&'000 rac9 is categori;ed into two tyes GBC!( %+ $%& &ontrol =rocessing -ac9
GBS!( %+ $%& %er:ice =rocessing -ac9
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HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confdential Page (5
!ac+55 GBC!
GBC! GSM BSC Contro$ #rocessin% !ac+ 7(
It must be configured with main rocessingsubrac9 and $!+ ser:er. It rocesses the
$%&'000 ser:ices and erforms oerations and
maintenance.
In the $&- a I+% and at most two
subrac9s can be configured .
GIMS( %+ Integrated +anagement %ystem
consists of the following comonents
One CD+ (9eyboard :ideo and mouse)
One ,!@ %witch
One $!+ (%+ $ac9 !dministration
+odule) ser:er
$!+
?ummy
anel
,!@
%witch
CD+
&abling
subrac9 !ir
defence
subrac9
=ower
distribution
bo4
%ubrac9
%ubrac9
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HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confdential Page (
#ower Distri2ution Bo1
The ower distribution bo4 has the following configurations
&hec9ing two channels of 8 1 D inut :oltage ?etecting one route of e4ternal temerature sensor3 detecting one route of e4ternal humidity
sensor3 detecting two lightning rotection comonents3 detecting the status of si4 distributed8
ower outut switches
#mitting audio and :isual alarms
&ommunicating with the %&U and reorting the status of the ower distribution bo4 and
e4changing O*+ information with the %&U
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HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confdential Page (%
an Bo1 The ==U board and the =&U board are configured in the fan bo4.
The ==U is inserted in the rear art of the fan bo4. It ro:ides ower suly for nine fans 9ees
the :oltage stable through a stabili;ing tube and ensures normal oerations of the fans.
The =&U is inserted in the front art of the fan bo4. It has the following functions
+onitoring the running status of the fans in the fan bo4
&ommunicating with the %&U and reorting the wor9ing status of the fan bo4
?etecting the temerature of the fan bo4 collecting temerature data with a temerature sensor
%howing the current status of fan bo4 and ro:iding alarms through ,#?
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HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confdential Page (&
89M
The CD+ is a de:ice integrating a 9eyboard a
dislay and a mouse. It is the oeratinglatform of the $!+.
?& inut ower soc9et
=ower switch
=ort for dislay cable =ort for 9eyboard
cable =ort for mouse cable
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HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confdential Page ('
GBAM
The $!+ is a ser:er installed with O+U software which is used to erform oeration and
maintenance for the $%&'000.
It has the following functions
&ontrolling the communications between the ,+T and boards suorting data configuration
for boards through the ,+T3 collecting and filtering erformance and alarm data
-esonding to the commands from the ,+T rocessing the commands and then forwarding
the commands to the boards in the $%&'000
iltering the results from boards and then returning the results to the ,+T
Front of GBAM
Rear of GBAM
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HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confdential Page 2)
!ac+ 55GBS!
GBS! GSM BSC Serice #rocessin% !ac+ 7( It is only
configured with subrac9s. It erforms ser:ice rocessing
functions of the $%&'000.
One ser:ice rac9 can be configured with three
subrac9s.
!ccording to the reEuirement of ser:ice Euantity
each $%&'000 system contains a ma4imum of three
ser:ice rac9s.
?ummy
anel
插框插框subrac9
!ir defence
subrac9
=ower
distributionbo4
!ir
defence
subrac9
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HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confdential Page 2(
Su2rac+
Su2rac+( The subrac9 comlies with the
I#&'02A7 standard. The width of it is 6A inches.
! bac9lane is in the middle of the subrac9 and
boards are inserted from the front and the rear
of the subrac9. $oth the front subrac9 and the
rear subrac9 ro:ide 6 slots. The slots are
numbered 00F27 from the front to the rear.
The $%&'000 contains three subrac9s
+=% main rocessing subrac9
#=% e4tension rocessing subrac9
T&% :oice rocessing subrac9
$oard
an bo4
&ablingTrough
前插单板
后插单板
背板
00 6/
276
0'
20
Serviceboard
Interfaceboard
Motherboard
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Su2rac+55GM#S
+=% It erforms the basic ser:ice rocessing and oeration maintenance functions. In addition
it ro:ides system cloc9. The +=% is configured in the $&-. &omared with the #=%
subrac9 the +=% also is configured with the &U board.
It can rocess the ser:ices of a ma4imum of 562 T-s in full configuration.
&onfiguration Tye !&onfiguration Tye $
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HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confdential Page 23
Su2rac+55GE#S #=% It erforms basic ser:ice rocessing function of the $%&'000. #ach $%&'000 has 0F/
#=% that can be configured in the $&- or $%-.
It can rocess the ser:ices of a ma4imum of 562 T-s in full configuration.
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HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confdential Page 24
Su2rac+55G-CS G-CS( ! T&% (%+ Trans&oder %ubrac9 ) erforms transcoding rate adatation and sub8
multile4ing.
"hen the $%&'000 uses #6 transmissions on the ! interface a T&% ro:ides a ma4imum of
/10 seech channels.
"hen the $%&'000 uses %T+86 transmissions on the ! interface a T&% ro:ides a ma4imum of
7'10 seech channels.
6/00 06 02 0/ 070'050 01 0A 60 6266
.?
=
U
&
.%
&
U
.%
&
U
.T
@
U
.T
@
U
276 65 6' 67 26206A61 22 2/ 2 2'25
.#
I
U
T
.#
I
U
T
.#
I
U
!
.#
I
U
!
.#
I
U
!
.#
I
U
!
.
#
I
U
!
.#
I
U
!
-ear
board
ront
board
$ac9)lane
.#
I
U
!
.#
I
U
!
.?
=
U
&
.?
=
U
&
.?
=
U
&
.?
=
U
&
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HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confdential Page 25
Dip switc& o" Su2rac+s
O@6 1
Bit Meanin%
) Su2rac+ num2er contro$ 2it
* Su2rac+ num2er contro$ 2it
3 Su2rac+ num2er contro$ 2it
, Su2rac+ num2er contro$ 2it
: Su2rac+ num2er contro$ 2it
6 ;dd parity c&ec+ 2it
< It is unde"ined' and is %enera$$y set as=0>
?
-&e automatic DI# 2it o" t&e GSCU2oard in t&e centra$ su2rac+ is( 0' t&e startin% o" 2oards is &i%&$ydependent on t&e GBAM serer' name$yt&at t&e 2oards $oad "rom t&e serera"ter startin%
)' t&e startin% o" 2oards is $essdependent on t&e GBAM serer' name$yt&at t&e 2oards c&ec+ t&e a$idity o" t&e$as& "i$e w&en startin%' and $oad "romt&e $as& "i$e i" t&e $as& "i$e is a$id or$oad "rom t&e serer i" t&e $as& "i$e isina$id
-&e switc& state =;/> means 0 and =;>
means ) -&e &i%&est 2it o" DI# corresponds
wit& t&e &i%&est 2it o" t&e 2yte -&e odd parity c&ec+ is used "or DI# In t&e
ei%&t DI# 2its' t&e @uantity o" =)> must 2e
odd
Use t&e "o$$owin% met&od to set( irst set t&e
DI# 2it ): and ? DI# 2it < is %enera$$y =0>
-&en count t&e @uantity o" =)> in t&e current
DI# 2its I" t&e @uantity is een' set DI# 2it 6
as =)> I" t&e @uantity is odd' set DI# 2it 6 as
=0>
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HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confdential Page 2
C&apter * Hardware Structure
-ac9 and %ubrac9
$oard
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HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confdential Page 2%
A22reiation
A22reiation u$$ name
GGCU %+ eneral &loc9 Unit
GSCU %+ %witching and &ontrol Unit
G0MU O+U (%+ Oeration and +aintenance Unit)
G-/U %+ T?+ %witching Unit
G#U- %+ e4tensible =rocessing Unit for Transmission
G#UM %+ e4tensible =rocessing Unit for +ain ser:ice
GD#U %+ ?ata =rocessing Unit for &% ser:ice
GEIUA %+ #6GT6 Interface Unit for !
GEIUB %+ #6GT6 Interface Unit for !bis
GEIU# %+ #6GT6 Interface Unit for =b
GEIU- %+ #6GT6 Interface Unit for !ter
G;IUA %+ Otic Interface Unit for !
G;IUB %+ Otic Interface Unit for !bis
G;IU# %+ Otic Interface Unit for =b
G;IU- %+ Otic Interface Unit for !ter
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HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confdential Page 2&
Board55GGCU
&U
=!-&
-U@ !,+ !&T
!T@8I@
1
A
&O+0
&O+6
0
6
2
/
5
'
7
& , C O U T
T # % T I @
T # % T O U T
& , C , I @ 6
& , C , I @ 0
#ort unction
Matc&in%
Connector
&,COUT0 ~
A
%ynchroni;ation signal outut ort used to
outut 1 9; cloc9 signals to the %&U
-H5
&O+0 ~ 6 %tandby -H5
T#%TOUT %tandby %+$ male connector
T#%TI@ %tandby %+$ male connector
&,CI@0 ~ 6 %ynchroni;ation cloc9 signal inut ort used to
inut one route of e4ternal 2.01 +; signal and
2.01 +bitGs code stream signals
%+$ male connector
The &U is the general cloc9 unit in the $%&'000. The acti:e &U and
the standby &U are configured in slots 62 and 6/ in the +=%. The &U
board ro:ides synchronous timing signals for the system
The &U has the following functions
enerating and 9eeing synchronous cloc9 signals
Ceeing the consistency of synchroni;ation information outut between
the acti:e and standby &Us
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HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confdential Page 2'
Board55GSCU
#ort unctionMatc&in%
#T0 ~ A 60+G600+G6000+ #thernet orts used to connect subrac9s -H5
#T60~
66
60+G600+G6000+ #thernet orts used to connect $!+
(Only the main subrac9 is connected with the $!+)
-H5
&O+ ?ebugging ort-H5
&,CI@&loc9 source ort used to recei:e the 1 9; cloc9 signals
from the anel of the &U
-H5
T#%TOUT &loc9 test signal ort used to outut cloc9 test signals %+$ connector
The %&U is the switching control unit in the $%&'000. The acti:e %&U and
the standby %&U are inserted in slots ' and 7 of the +=%G#=%GT&%. The%&U board ro:ides maintenance management of the subrac9 and #
switching latform for the subrac9.
The %&U has the following functions
=erforming maintenance management of the subrac9
=ro:iding a # latform for the boards in the subrac9
=ro:iding cloc9 information for the other boards in the same subrac9 e4cet
the &U=UT=U+
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HUAWEI TECHNOLOGIES Co., Ltd. HUAWEI Confdential Page 3)
Board 55G-/U
#ort unction
Matc&in%
connector
T?+0 ~ 5T?+ high8seed serial ort used to connect the T@Us
between subrac9s
?$6
G-/U
#A!C
-U@
!,+
!&T
- /
M
:
-
/
M
,
-
/
M
0
-
/
M
)
-
/
M
*
-
/
M
3
The T@U is the T?+ switching unit in the $%&'000. The acti:e T@U and the
standby T@U are inserted in slots and slot 5 of the +=%G#=%GT&%. The
T@U board erforms the T?+ switching function which is the T?+ switching
center of the system.
The T@U has the following functions
=ro:iding 621 C 621 C T?+ switching
!llocating T?+ networ9 resources establishing and releasing radio lin9s
- e a r ) l a n e
' 2
,D?% ,D?%T?+ switching
module
621CJ621C 7 r o n t ) l a n e
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Board55G#UM
GB#U
#A!C
-U@
!,+
!&T
6
0
G 6
0
0
G 6
0
0
0
$
!
%
#
8 T
!&T
,I@C
0
)
*
3
=aging control%ystem information management&hannel assignment$T% common ser:ice management
Doice call control=ac9et ser:ice controlando:er =ower control
#ort unctionMatc&in%
connector
60G600G6000$!%#8T0~ / #G# #thernet ort reser:ed -H5
The =U+ is the main ser:ice rocessing unit in the $%&'000. The acti:e=U+ and the standby =U+ are inserted in slots 0 and 6 of the +=% or
#=%. One =U+ has four built8in &=Us that erform central ser:ice
rocessing function.
The =U+ has the following functions
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Board55G#U-
GB#U
#A!C
-U@
!,+
!&T
6
0
G 6
0
0
G 6
0
0
0
$
!
%
#
8 T
!&T
,I@C
0
)
*
3 #ort unctionMatc&in%
connector
60G600G6000$!%#8T0~ /#G# #thernet ort
reser:ed
-H5
The =UT is the transmission rocessing unit in the $%&'000. The
acti:e =UT and standby =UT are inserted in slots 2 and slot / in
the +=% or #=%. The =UT erforms the short message cell
broadcast and ,!=? lin9s rocessing function of the system.
The =UT has the following functions
&u0 rocess &ell $roadcast unction and cu6K/ rocess ,!=?
rotocol in +=%
&u0K/ rocess ,!=? rotocol in #=%
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Board 55GEIU G;IU
#IU
=!-&
-U@ !,+ !&T
T # % T O U T
2 + 0
2 + 6
OIU
=!-&
-U@ !,+ !&T
T # % T O U T
2 + 0
2 + 6
,O%
T
-
#6GT6(0K7)
#6GT6(6'K2/)
#6GT6(2K/6)
#6GT6(1K65)
Inter"ace unctionMatc&in%
connector
#6GT6(0 ~
/6)
#6GT6 ort used to transmit and recei:e #6GT6 signals on
routes 0F7
?$
2+0 ~ 62.01 +; cloc9 source outut ort used to outut the
e4tracted line cloc9 as the system cloc9 source
%+$ male
connector
T#%TOUT2.01 +; cloc9 outut ort used to outut the testing
cloc9 of the system
%+$ male
connector
The #IU G OIU can be categori;ed into the following tyes
The #IU$GOIU$ is the %+ #6GT6 Interface Unit for the !bis interface.
The #IU=GOIU= is the %+ #6GT6 Interface Unit for the =b interface.
The #IUTGOIUT is the %+ #6GT6 Interface Unit for the !ter interface.
The #IU!GOIU! is the %+ #6GT6 Interface Unit for the ! interface.
The #IUGOIU has the following functions
=rocessing the %%7 +T=2 rotocols
=rocessing the ,in9 !ccess =rocedure on the ? channel (,!=?) rotocols
=ro:iding maintenance lin9s when T&% subrac9s are configured at the
+%& side
=erforming inter8board Tributary =rotect %witching (T=%)
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Board55GEIU
?I=switch
$it ?escrition 75L 620L
%6 6 Used to select the imedance on #6GT6 lin9s 0F7 O@ O
2 Used to select the imedance on #6GT6 lin9s 1F65 O@ O
/ Used to select the imedance on #6GT6 lin9s 6'F2/
O@ O
Used to select the imedance on #6GT6 lin9s 2F
/6 O@ O
5~ 1 Unused O@ O
%/ 6~ 1 Used to set the rotection grounding of thetransmitting end of #6GT6 lin9s 0F7 O@ O
% 6~ 1 Used to set the rotection grounding of thetransmitting end of #6GT6 lin9s 1F65
O@ O
%5 6~ 1 Used to set the rotection grounding of thetransmitting end of #6GT6 lin9s 6'F2/
O@ O
%' 6~ 1 Used to set the rotection grounding of thetransmitting end of #6GT6 lin9s 2F/6
O@ O
The ?I= switches of the #IU board is set through the 758ohm coa4ial cable transmission mode. -eset
the ?I= switches of the #IU board if onsite engineers adot other transmission modes.
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Board55GD#U
The ?=U is the circuit ser:ice rocessing unit in the $%&'000. The
?=U board can be inserted in slot 0 to slot / slot 1 to slot 6/ of the
T&% subrac9. The board erforms the :oice and data ser:ice
rocessing functions. It wor9s in resource ool mode.
The ?=U has the following functions
#ncoding and decoding seech ser:ices
=erforming data ser:ice rate adatation
=erforming Tandem ree Oeration (TO)
=erforming :oice enhancement function
!utomatically detecting :oice faults
D#Ua
#A!C
-U@
!,+
!&T
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Board55G;MU
!s the O+ center of the $%& The O+Us are installed in slots 20F2/ in the
+=% and wor9 in acti:eGstandby mode. The O+U features high
comutation seed and outstanding data rocessing caability .
The O+U has the following functions
=ro:ides configuration management erformance management fault
management security management and loading management for the$%&
Interfaces to the ,+TG+2000 on behalf of the $%&
*(+ S-e *2+ Lea/ $0-ing *3+ W-en1
*4+ UN LE *5+ AL" LE *+ ACT LE
*%+ e$et #tton *&+ S1tdon #tton *'+ US! 0o-t
*()+ ETH) *Et1e-net0o-t+
*((+ ETH( *Et1e-net0o-t+
*(2+ ETH2 *Et1e-net 0o-t+
*(3+ CO" 0o-t *(4+ GA 0o-t *(5+ H LE
*(+ O66LINE LE *(%+ Ha-d di$7 *(&+ S-e /o- f8 t1e 1a-d
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Board55G;MU Indicator .ED Co$or Status Description
-U@ ree
n
On for 6s and off for 6s The board is oerating.
On for 0.625s and off for0.625s
The board is loading software.
On for 2s and off for 2s The board is being tested.
%teady on There is ower suly but the board is faulty.
%teady off There is no ower suly or the board is faulty.
!,+ -ed On (or flashing) There is a fault related to the running board.
%teady off There is no alarm.
!&T reen
%teady on The board wor9s in acti:e mode.
%teady off The board wor9s in standby mode.
O,I@#
$lue On The board can be remo:ed.
Off The board cannot be remo:ed.On for 0.625s and off for0.625s
The status of the board is switching.
? reen
lashing The hard dis9 is erforming read and write oerations.
%teady off The hard dis9 is not erforming read and writeoerations.
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Summary
SummarySummary This chater describes the following contents>%tructure of the $%&'000
>rac9>%ubrac9>%tructures and functions of boards
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C&apter ) System Description
C&apter * Hardware Structure
C&apter 3 System #rincip$e
C&apter , -ypica$ Con"i%uration
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C&apter 3 System #rincip$e
+odule unction
%ystem %ignal low
%oftware ,oading
!larm &hannel
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-DM Switc&in% Su2system
,ogical Unit =hysical entity
T?+ access bearer unit #IU$GOIU$ #IU=GOIU= #IUTGOIUT #IU!GOIU!
T?+ switching unit T@U
T?+ rocessing bearer unit ?=U
The Time ?i:ision +ultile4ing (T?+) switching subsystem ro:ides circuit switched domain
(&%) switching for the system. The T?+ switching subsystem has the following functions
=ro:iding T?+ bearers for the ! !bis !ter and =b interfaces
=erforming T?+ switching and ro:iding circuit switched domain (&%) switching for the
system
=ro:iding T?+ bearers for the system ser:ice rocessing
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-DM Switc&in% Unit
The T@U board oerates in acti:e and standby modes.
"hen other boards erform acti:e8standby switcho:er the T@U board detects the seech
channels on the ,D?% lin9s.
"hen the T@Us erform acti:e8standby switcho:er other boards detect the seech
channels on the ,D?% lin9s.
IntraSu2rac+ -DM Switc&in%( Other boards in the subrac9 connect the acti:eGstandby boards
through the ,ow Doltage ?ifferential %ignal (,D?%) high8seed serial orts
T@U (acti:e) T@U (standby)
%lot 0 %lot 2 %lot 27………
&onnection between a board and the acti:e T@U through
a bac9lane T?+ ath&onnection between a board and the standby T@U
through a bac9lane T?+ ath
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GE Switc&in% Su2system
The igabit #thernet (#) switching subsystem erforms # switching of signaling and O*+
interface.
The hardware of the subsystem consists of the following entities
$ac9lane
%&U board
# interface units of the boards in the subsystem
The %&U erforms oeration and maintenance of its subrac9 and ro:ides # switching for the
other boards in the same subrac9.
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GE Switc&in% Unit Intra8subrac9 acti:eGstandby %&U boards i interconnection3 /0 bandwidth
Intra8subrac9 # switching The %&U board ro:ides 1 # switching caability. The slot 6
slot 65 slot 2' and slot 27 are distributed 6 resecti:ely. The slot ' and slot 7 are not distributed.
Other slots are distributed 2 resecti:ely.
%&U
!cti:e
%lot 6
&onnection between a board and the acti:e %&U through a
bac9lane # ath
&onnection between a board and the standby %&U
through a bac9lane # ath
%&U
%tandby
%lot 2 %lot 2'………
= or t on
t h e
) an el
= or t on t h e
b a c 9 )l an e
62
62 1
1
GE GE
%&U6
%&U0
# switching
module
Inter8subrac9
'0
%&Us to slots 1
The %&U ro:ides 62 orts for inter8subrac9
interconnection 62 4 6
Total 1M6246N'0
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$!+
%&U (main subrac9)
# 0
# 6
# 2
# /
#
# 5
# '
# A
# 7
# 1
# 60
# 66
#
# T-U@C6
# T-U@C/
# T-U@C
# T-U@C'
# T-U@C5
&=U #
# 0
# 6
# 0
# 6
# 0
# 6
%&U (e4tension subrac9)
6#
2
#
/
#
# T-U@C2
GE Switc&in% Interconnection
main
su2rac+
E1tension
su2rac+
our inter8subrac9 6
networ9
cables
GSCU)
GSCU0 GSCU(
GSCU(
GSCU) GSCU1
i interconnection
/0 bandwidth
E1tension
su2rac+
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Structure o" InterSu2rac+ Interconnection
! interface
=b interface !bis interface !ter interface
The subrac9s in the $%&'000D600-006 comose an interconnection switching
networ9 through cascades.
GTCS
+ain G-CS
GTCS
GTCSTC
GEPS
G"PS
GEPS
GEPSBM
%&U star interconnection
T@U full interconnection
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Serice Contro$ Su2system
The ser:ice control subsystem has the following functions
=aging control system information management channel assignment :oice call control =%ser:ice control hando:er and ower control
The hardware entities
The =U+ board
The =UT board
The $!+ ser:er O- O+U board
The %&U board in the T&% subrac9 The =U+ board erforms the main ser:ice rocessing of the $%&'000 which includes four
&=U rocessing units.
The four &=U rocessing units ha:e the following functions
&=U0 aging control system information management channel assignment and $T%
common ser:ice management
&=U6 ~ / :oice call control =% ser:ice control hando:er and ower control
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Serice #rocessin% Su2system
The hardware entity of the ser:ice rocessing subsystem is the ?=U& board. It erforms the
following functions Transcoding
-ate adatation
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Inter"ace and Si%na$in% #rocessin% Su2system
The interface and signaling subsystem ro:ides interfaces of $%& $T% and @%% which erforms
signaling rocessing function of data lin9 layer. =ro:iding !G!bisG=bG!ter interfaces
%uorting cell broadcast message ser:ice rocessing
%uorting the +T=2 rotocol of %%7
%uorting the ,!=? rotocol !TSG"PS9GEPS
GTCS "SC
PCU C!C
!SC
A#i$
P# C#
Ate- A
=ort ?$ connector
The trun9 cable is categori;ed into the following tyes 75L coa4ial cable
75L 8shaed coa4ial cable
620L twisted air cable
620L8shaed twisted air cable
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C$oc+ Su2system
The hardware entity of the cloc9 subsystem is the %+ eneral &locC Unit (&U).
The cloc9 sources of the $%&'000 are as follows
$uilding Integrated Timing %uly %ystem ($IT%)
There are two tyes of $IT% cloc9 2 +; cloc9 and 2 +bitGs cloc9. The 2 +bitGs cloc9 source
has higher anti8interference caabilities than the 2 +; cloc9 source.
,ine cloc9
The line cloc9 e4tracted from the ! interface is rocessed and generates 2 +; cloc9 and 1
9; cloc9. The 2 +; cloc9 signals outut from the ! interface anel and then are sent to the
&U board in the +=% subrac9.
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C$oc+ Su2system GGCU !e"erence C$oc+ Input
To inut the acti:e8standby cloc9 of the &U you can use the signals ro:ided by the $IT% and
the 2.01+; cloc9 signal e4tracted from the uer8le:el cloc9 by the interface anel in the ser:ice
subrac9.
The &U bac9lane uses the interface anel of the same subrac9 to e4tract the 1 C; cloc9
signals from the uer8le:el cloc9s.
!e"erence C$oc+ "or t&e GM#S or GE#S
The reference cloc9s are ro:ided by the &U. The reference cloc9s generate 19; cloc9
signals through the &U.
GM#S( The cloc9 signals are sent to the %&U in the +=% subrac9 through the bac9lane.
Then the cloc9 signals are sent to other boards in the same subrac9.
GE#S( The cloc9 signals are sent to the %&U board in the #=% subrac9 through the cloc9
cable. Then the signals are sent to other boards through the bac9lane.
!e"erence C$oc+ "or t&e G-CS
#ach T&% e4tracts line cloc9 from the ! interface. The lin9 cloc9 is rocessed through ! interface
anel and then generates 1 C; cloc9 signals.
The cloc9 signals are sent to the %&U in the subrac9 through the bac9lane. Then the cloc9
signals are sent to other boards in the same subrac9.
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GSCU GSCU GSCU
Actiestand2y GGCU
In t&e su2rac+ 0
% er : i c e
b o ar d
% er : i c e
b o ar d
% er : i c e
b o ar d
% er : i c e
b o ar d
% er : i c e
b o ar d
% er : i c e
b o ar d
GMPSGEPS
Time synchroni;ation
rimary reference
Transmission synchroni;ation
reference source
$ac9lane
transmission
?istribution cable
transmission
$ac9lane
transmission
$ac9lane
transmission
$ac9lanetransmission
GEPS
System C$oc+ Sc&eme
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The connection of the &U of the main subrac9 and the %&U of the e4tension subrac9 is shown
as following figure
The acti:e &U and the standby &U outut 608way signal channel resecti:ely. ! signal
channel of an acti:e &U and that of a standby &U are integrated through the 8shaed
cable.
&U suort si4 ser:ice subrac9s one is the +=% others fi:e are the #=%s where the
60 cables from %&Us to &U can be connected at most.
!ny of comonent including &U 8shaed cable and %&U is faulty the system cloc9 stillcan wor9 normally.
C$oc+ sync&roniation Interconnection
GMPS
GGCUGGCU
GEPS
GSCU GSCU
GEPS
GSCU GSCU
8shaed
cable
::
6
6
2
6 1
6 1 6 1
" 2
" /
2
" 6
6
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C&apter 3 System #rincip$e
+odule unction
%ystem %ignal %tream
%oftware ,oading
!larm =ath
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Si%na$ $ow o" Basic 9oice Serice9oice serice
#6GT6 cable
T?+ switching
on the bac9lane
ront board
-ear board
G
!"#
G
&I#!
G
!"#
G
&I#!
G
&I#A
MS'
G!'SGM(S)G&(S
Ater
interface
A interface
G*(#+
G
&I#B
B!S
Abi,
interface
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#S Serice Si%na$ $ow
#S serice(
#6GT6 cable
$ac9lane T?+ switching
=b interface b interface
ront board
-ear board
!bisinterface
G
!"#
G*
(#(
SGS"
GM(S)G&(S
G&
I#B
B!S GFG#G
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Serice Si%na$ $ow
T& subrac9 GPUC
G!"#G&I#! G&I#A
$+ subrac9
G&I#!G&I#B G!"# !bis interface
=b interface
! interface
Doice ser:ice non8crosso:er subrac9 switch
Doice ser:ice crosso:er subrac9 switch
=% ser:ice non8crosso:er subrac9 switch
Ater interface
$+ subrac9
G!"#
!bis interface
G&I#B G&I#!
G&I#(
1-.
1-.1-.
-/.
-/.
-/.
-/.
-/.
-/.
-/.
-/.
1-.
1-.
-/. -/. -/.
-/.
1-.
-/.
=% ser:ice crosso:er subrac9 switch
T& subrac9
G*(#'0!'
G!"#G&I#! G&I#A-/. -/. -/. ! interface
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SS< on t&e A Inter"ace
G+(#M
GS'#
G&I#!
G&I#!
G&I#A
"SC
The signals are rocessed through the +T=2 and
then sent to the =U+ in the mode of internal
signaling flow
GTCSGMPS/GEPS !ter
interface
!
interface
#6GT6 cable
# switching on the bac9lane
T?+ switching on the bac9lane ront board
-ear board
G!"#
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Si%na$ $ow o" CrossSu2rac+ Ca$$
?escrition of control lane cross8subrac9 call "hen access subrac9 bears a hea:y load othersubrac9s can share signaling.
@ormal signaling low
cross8subrac9 signaling flow
!' 2brac3
G!"#G&I#! G&I#A
BM ,2brac3
G&I#!GS'# A interfaceAterinterface
BM ,2brac3
GS'# G&I#!
!' ,2brac3
G!"#G&I#! G&I#A A interface
G
E
I
UB
Abis
interface
Abis
interface
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;FM $ow
ServiceboardG
S'#
G&I#!
GS'#
G&I#!
&1)!1 cab4e
G& ,5itch on bac364ane
&thernet cab4e
G!'S7 re8ote9
GM(S Ater
G
S'#
:
M
!
GBAM
S e r v i c e
b o a r d
G&(S
G
S'#
G!'S 7 4oca4 9
:A" S5itch
M$
S e r v i c e
b o a r d
S e r v i c e
b o a r d
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C&apter 3 System #rincip$e
+odule unction
%ystem %ignal low
%oftware ,oading
!larm =ath
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So"tware .oadin%
The loading rocess is the rocess that a board obtains rogram files and data files after the ser:ice
subrac9 or the board starts or restarts.
The $%&'000 software loading control system has two layers
The $!+ is the first8le:el center of the entire $%& software loading management. The loading
and ower8on of the $!+ are indeendent of other boards. The $!+ rocesses the loading
control reEuests of the %&U in the +=%.
The %&U in the +=% is the second8le:el center of the loading control system. The %&U
rocesses the loading control reEuests of the ser:ice boards in the +=% #=% and T&%.
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So"tware .oadin% #at& G-CS at .oca$7
$
!
+
%
&
U
GMPS
+ain T&%
e4tension T&%
GEPS
# on the bac9lane
Inter8subrac9 &able
G"PS
% er : i
c e b o ar d
#=% T&%
%&
U
%
&
U
% er : i c e
b o ar d
% er : i c e
b o ar d
T&%
G
S
C
U
% er : i c e
b o ar d
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So"tware .oadin% #at& !emote G-CS7
#=% T&%
T&%+=%
E
I
U
T
$
!
+
%
&
U
E
I
U
-
G
S
C
U
%&
U
%&
U
GMPS
+ain -emote T&%
e4tension T&%
GEPS
# on the bac9lane
?,&
Inter8subrac9 &able
% er : i c e
b o ar d
% er :
i c e
b o ar d
% er : i c e
b o ar d
% er : i c e
b o ar d
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.oadin% So"tware to t&e GSCU Board
The rocess of the software loading for the %&U in +=% is as follows
6. !fter the %&U starts u it broadcasts the $OOT= reEuest.
If the $!+ is online it rocesses and resonds to the reEuest.
If the $!+ is not started or is offline the %&U starts u and loads data from its own
flash memory acts as a second8le:el loading control center and then rocesses the
$OOT= reEuests of the other boards.
2. !fter recei:ing the resonse from the $!+ the %&U determines whether to obtain the
latest alication files from the $!+ based on the loading control characters and the
software :ersion in the flash memory.
/. If the %&U needs to obtain the rogram files from the $!+ it obtains the rogram
software from the software area in the $!+ and writes it into the flash. It then loads the
software from the flash.
. !fter the rogram files are loaded the %&U starts to load the data files. The loadingrocess of the data files is the same as that of the rogram files.
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.oadin% So"tware to t&e ;t&er Boards in GM#SGE#S
!fter the software of the %&U is loaded the loading of the software for the other boards in the
subrac9 starts.
6. !fter a board is started it broadcasts the $OOT= reEuest. The reEuest contains the hysical
address of this board and the software :ersion information stored in the flash.
2. !fter the %&U recei:es the $OOT= reEuest it transarently transmits this reEuest to the
%&U in the +=% if the subrac9 is not the +=%.
/. The %&U in the +=% calculates the I= address of the board based on the hysical
address of the board and then obtains the loading control character from the configuration
data of the board.
If the loading control character is .oad "rom $as& then the %&U in the +=% resonds to the
$OOT= reEuest. The resonse carries the I= address and the loading control character notifying
the board to obtain the rogram files from the flash and load them.
If the loading control character is Auto then the %&U in the +=% determines whether the
software :ersion in the flash of this board is consistent with that in the software area of the $!+
and then resonds to the $OOT= reEuest. The resonse carries the I= address and the loading
control character.
If the loading control character is .oad "rom Serer then the %&U directly downloads the
alication files from the :ersion section on the $!+.
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C&apter 3 System #rincip$e
+odule unction
%ystem %ignal low
%oftware ,oading
!larm =ath
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Connection o" A$arm Bo1
Connection sc&eme( -&e a$arm 2o1 accesses .M- c$ient t&rou%& seria$ ports
"hen an alarm is reorted the ,+T uses the con:ert rogram to dri:e the alarm bo4 to
generate :isual and audio indications.
The user erforms alarm bo4 management such as terminating alarm sounds and disabling
alarm indicators.
!larm
management
module
$!+ !larm bo4
&on:ert
,+T
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!eport o" A$arm "rom .oca$ Su2rac+
The reort rocess of alarm from local subrac9
The ser:ice board generates alarm
The alarm is shielded and filtered on the ser:ice board and then is reorted to the $!+
through # switching.
The $!+ reorts the alarm to ,+TG#+% and records alarm log.
+=%
%&U$!+
,+T
&on:ert !larm bo4
#=%
%&U
%er:ice
board
%er:ice
board
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!eport o" A$arm "rom !emote Su2rac+
The reort rocess of alarm from remote subrac9 is shown as follows
The ser:ice board of remote subrac9 generates alarm.
The alarm is shielded and filtered on the ser:ice board.
The alarm is transferred to the local #IUT through the # switching and then sent to the
#IUT of main subrac9 through the %%7 of the !ter interface.
The local #IUT reorts the alarm to the $!+ through # switching.
The $!+ reorts the alarm to ,+TG#+% and records alarm log.
+=%
#IUT %&U$!+ ,+T&on:ert !larm bo4
T&%
#IUTSerice2oard
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Summary
This chater describes oerating rocess of the $%&'000 including
module function software loading system signal flow and alarm
ath.
SummarySummary
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C&apter ) System Description
C&apter * Hardware Structure
C&apter 3 System #rincip$e
C&apter , -ypica$ Con"i%uration
C "i ti # i i $
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Con"i%uration #rincip$es
The #IUGOIU ro:ide #6 ort or %T+86 ort. To ensure the orderliness of rac9 insert the #IU
GOIU boards at the rear of slots.
The !bis interface suorts four mulitile4ing modes including 6 / 6 2 6 and 6 6.
The roortion between the number of the !ter interface boards and that of ! interface boards is 6
so that the multile4ing caability of the !ter interface can be suorted.
#ach ?=U& board can rocesses A'18way :oice. The ?=U& board uses @M6 redundancy
configuration. !ll the T& resources are shared through the resource ool.
C "i ti # i i $
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Con"i%uration #rincip$es
#4cet the T@U and the %&U other boards can be inserted at random.
$ut in the configuration oeration ro:ided by the ,+T each board should be inserted in the
secified slots
Two %&Us should be inserted in the slot ' and slot 7 of the +=%G#=%GT&%. They
wor9 in acti:eGstandby mode.
Two T@Us should be inserted in the slot and slot 5 of the +=%G#=%GT&%. They
wor9 in acti:eGstandby mode.
Two &Us should be inserted in the slot 62 and slot 6/ of the +=%. They wor9 in
acti:eGstandby mode.
The =U+s can be inserted in slot 0 and slo6 of the +=%G#=% according to
reEuirements.
The =UTs can be inserted in slot 2 and slot / of the +=%G#=% according to
reEuirements.
The ?=U&s can be inserted in slot 0 to slot / and slot 1 to slot 6/ of the T&% according
to reEuirements.
The O+Us must be inserted in slot 20 to slot 2/ of the +=%
C "i ti # i i $
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Con"i%uration #rincip$es
-wo GEIU 2oards must 2e con"i%ured into actie 2oard and stand2y 2oard
The #IU$sGOIU$s can be inserted in slot 61 to slot 27 of the +=%G#=% according to
reEuirements.
The #IU=sGOIU=s can be inserted in slot 6 and slot 65 of the +=%G#=% according to
reEuirements.
The #IUTsGOIUTs can be inserted in slot 6' and slot 67 of the +=%G#=% and slot 6 to
slot 67 of the T&% according to reEuirements.
The #IU!sGOIU!s can be inserted in slot 61 to slot 27 of the T&% according to
reEuirements.
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-ypica$ Con"i%uration
Capacity o" t&is con"i%uration(
The $%& suorts 562T- .
The #IU$ is configured according
to the number of $T% and the
number of carrier.
$ased on the ser:ice caacity
the ?=U& is configured through
the @M6 redundancy.
The #UI= is configured otionally
according to actual ser:ices.
The =U& is configured
otionally according to actual
ser:ices.
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-ypica$ Con"i%uration Capacity o" "u$$ con"i%uration( "hen a $%&'000 is fully configured it suorts 201T-.
S
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Summary
This chater describes the configuration rinciles of the $%&'000
and lists some tyical configurations in the actual deloyment.
SummarySummary
Oct. 25 2007 Internal Use (Only)
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