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Transcript of 01_CN60301EN16GLA2_Introduction to ATCA Platform_Marcelo.pdf
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CN60301EN16GLA2 ©2014 Nokia Solutions and Networks. All rights reserved
Introduction to ATCA Platform
AB3 version Hardware
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Nokia Solutions and Networks Academy
Legal notice
Intellectual Property Rights
All copyrights and intellectual property rights for Nokia Solutions and Nedocumentation, product documentation and slide presentation material, alforthwith known as Nokia Solutions and Networks training material, areproperty of Nokia Solutions and Networks. Nokia Solutions and Networks owcopying, modification, translation, adaptation or derivatives including any imdevelopments. Nokia Solutions and Networks has the sole right to copy, distmodify, develop, license, sublicense, sell, transfer and assign the Nokia Networks training material. Individuals can use the Nokia Solutions and Nematerial for their own personal self-development only, those same indivsubsequently pass on that same Intellectual Property to others without thagreement of Nokia Solutions and Networks. The Nokia Solutions and Nematerial cannot be used outside of an agreed Nokia Solutions and Netsession for development of groups without the prior written agreement of Nand Networks.
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Objective
At the end of this learning element part icipant will be able to:
Describe the NSN COTS ATCA concept
List ATCA Hardware Main Features (version AB3)
Building Blocks (Cabinet, Shelf, Blades etc.)
Connectivity
Power and Cooling
Hardware Management
Notes on abbreviations:
NSN: Nokia Solutions and Networks
COTS: Commercial off the Shelf
ATCA: Advanced Telecommunications Computing Architecture
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CN60301EN16GLA2 ©2014 Nokia Solutions and Networks. All rights reserved
ATCA Concept
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What is ATCA?
• Advanced Telecommunications Computing Architecture
• Standardized modular architecture for telecom equipment• Supports very wide set of carrier grade applications
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What is COTS ATCA HW?
• COTS = Commercial Off The Shelf
• Software or Hardware products that are ready-made and available for sale to and open market.
• NSN works as an integrator, no own HW design
• ATCA® = Advanced Telecommunications Computing Architecture (or AdvancedT
• ATCA is the largest specification effort in PCI Industrial Computer Manufacture(PICMG) history. Specification regarding to ACTA used by Nokia Solution and
• PICMG 3.x (3.0 being the base specification)
• Advanced Mezzanine Card (AMC)• The specifications mainly concentrate on three things:
• Mechanics of building blocks
• Interconnections
• HW management
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PICMG- PCI Industrial Computer Manufacturers
PICMG (PCI Industr ial Computer Manufacturers Group) is a consortium of overwho collaboratively develop open specifications for high performance telecommunica
industrial computing applications .
These series of specifications incorporates the latest trends in high speed interconn
technologies, next-generation processors, and improved Reliability , Availability and S
(RAS).
PICMG 3.x (3.0 being the base specification for ATCA NSN product).
NSN is Member of PICMG Group
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PCI Industrial Computer Manufacturers Group (PICMG)
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Reference: Heavy Reading, Vol.7, No.9, October 2009, “ATCA, AMC & MicroTCA Market Update & Forecast”Note: According to 2013 press release, Huawei is following COTS approach as well, Ericsson still stuck.
ATCA volumes ramping up
Al
H
Er
- N
O
-N
-M-T
N
Z
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Cabinet
Shelf
DSP
blad
Hub
blade
HUB
RTM
CPUblade
CPURTM
NSN preferred COTS ATCA Suppliers
AMC carrier aninterface AMCs
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Nokia Solutions and Networks ATCA HW Platform
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ATCA Benefits
ATCA is Shelf Based Architecture
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ATCA HW Platform Development
ATCA MSS is Implemented using HW Version AB3
AB1 AB2 AB3
Component Description
ACPI4-A CPU blade
CPRT4-A CPU blade RTMwith hard disk
AHUB3-A Hub blade
HBRT3-A Hub blade RTM
ADSP1-B DSP blade (MGW)
ACAR1-B AMC carrier blade (MGW)
HDS30-A 2.5” 300GB HDD
Component Description
MPPAM-B Packet processo
MPPAM-C Packet processo
SCNAM-B SDH line card AM
CPRT4-B CPU blade RTMwithout hard disk
EXTHD-A External USB HD
AB3 Hardware In ATCA MSS and MGW
AB4
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Platform Model ATCA Platform
AB1, AB2,Hardware
(COTS)
Software Platform
Application
eSW
Flexi ADX2
MSS, MME,
SGSN, FNS
MGW, S/PGW,
GGSN, FNG
adaptação doDX200 para ATCA
Th HW l tf f d iff t l t
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The same HW platform for different core elements
MSS
Multimedia
Gateway
Common COTS ATCA HW platform
MSC Server family
MSS/NVS,
HLRGGSN SGSN
• NSN has selected COTS ATCA ecosystem to ensure lowest possible Total CosOwnership in building and operating current and next-generation networks
MSS & MGW can be placed in same cabinet.
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ATCA Main Features
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ATCA Building Blocks
• ATCA HW architecture allows network elements to be createdfrom a set of basic building blocks
• ATCA building blocks
- Cabinet- Shelf- Blades- Rear Transition Modules (RTM)- Advanced Mezzanine Cards (AMC)- Interface plugs (SFP)- Power Distribution Units (PDU)- Cabling panel
Cabinet
ShelfBlade
AMC
Various internal components showing in ATCA cabinet . These compo
irrespective of type of Node.
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NSN ATCA Cabinet
• NSN ATCA cabinet (EC208-A)
includes cabinet mechanics
• Can be equipped with doors
• Provides enclosure to up
to three shelves
• Several cabinets can be
interconnected
• Dimensions: 800 x 600 x 2000mm• (with doors 800x700x2000mm)
• Weight (empty) ~140kg
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ATCA Cabinet
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NSN ATCA shelf overview
• Weight (empty) ~36kg
• EMI shielding• blades installed to front slots
• RTMs installed to rear slots
• Includes Air filter
Alarm display2 shelf managers
2 Power Entry Modules (PEM)
3 fan modules
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NSN ATCA Shelf
• NSN ATCA shelf (ACH-16A) includes enclosure, cooling, po
HW management to blades and RTMs• One shelf accommodates 16 blades and 16 RTMs
Front view Back view
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ATCA Shelf with Blades, AMCs and RTMs
The ATCA shelf houses blades
and RTMs
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NSN ATCA shelf FRUs
PEM module Shelf manager
module
Fan mod
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• In ATCA MSS two types of blades:
- Hub Blade (with RTM)
- CPU Blade (with or without RTM)
• Empty slots are filled with Filler Blade
Blades ATCA MSS
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Hub Blades
• Hub blades implement internal switching
• Base Interface (BI) switches internal traffic
• Fabric Interface (FI) switches user traffic• Two hub blade types
AHUB2-A (Type 2)
AHUB3-A (Type 3)
• Clock distribution to shelf
• Each shelf requires two redundant Hub blades
AHUB2-A
(Type 2)
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Hub blade + RTM
• 10 Gigabit Ethernet hub blade
• Internal connectivity
- Redundant 10GE (FI) for each slot- Redundant 1GE (BI) for each slot
• External connectivity
- 3x 10GE XFP to FI
• Additional 2x 10GE SFP+ to FI via RTM
module
- Local management interfaces- 2x BITS/SSU RJ45 for timing and
synchronization (not in use in MSS)
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AHUB3-A (ATCA HUB Blade/Type 3/Variant A) 1/2
HBRT3 A (H b Bl d R T i i d l / T 3 / V i A
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HBRT3-A (Hub Blade Rear Transi tion module / Type 3 / Variant A
CPU Bl d
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CPU Blades
• CPU blades provide multipurpose
processing capability to the ATCA HW
Platform• CPU blade types
ACPI2-A
ACPI4-A
ACPI4-B
• Include AMC bays
Two bays in Type 2
One bay in Type 4
• May be equipped with
hard disks ACPI2-A
(Type 2)
AC
(
CPU Bl d RTM
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CPU Blade + RTM
- Nehalem-EP based CPU blade
Single socket
Quad cores @ 2.13Ghz (6 cores in ACPI4-B)
2 threads per core
3 channels DDR3
6 DIMM sockets
- Update path to Westmere (6 cores)
- AMC slot
- RTM
2x1GbE SFP ports
2 x USB 2.0
1 x Serial port (RJ-45)
SAS controller with 4 ports
1 x SAS interface
1 x 2.5” SAS HDD (currently 300GB)RTM poderá ser usada neste cas(CHU) (OMU).Tb usamos RTM para obtenção delétrico ou ótico na traseira do sh
ACPI4 A (ATCA C t l P i it / I t l / T 4 / V i t A
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ACPI4-A (ATCA Central Processing unit / Intel / Type 4 / Variant A
CPRT4 A (CPU RTM / Type 4 / Variant A)
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CPRT4-A (CPU RTM / Type 4 / Variant A)
• The CRTM4-A is a RTM for a Type 4
CPU blade Cannot be used with
Type 2 CPU blade
• 2.5” 300GB hard disk drive
and SAS controller
• 1 * SAS disk cross-sharing interfaces
• 1 * Serial port
• 2 * USB ports
• 2 * 1GbE SFP ports• CPU blade and RTM Ethernet ports
cannot be used simultaneously
CPRT4 B (CPU RTM / Type 4 / Variant B)
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CPRT4-B (CPU RTM / Type 4 / Variant B)
• Identical to variant A except it does not
have a hard disk / SAS controller
• Can only be used with Type 4 CPU
blade
B
Rear Transi tion Module (RTM)
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Rear Transi tion Module (RTM)
Based on PICMG 3.0 specification
• RTMs are also single-wide boards
• RTM is equipped into the backside of the shelf
extension modules for the blades
Hard disks implemented with CPU RTM module
HUB blade has external connection uplinks from RTM
• RTM provides input and output connectivity to the companion
Front Board from the rear
Rear Transit ion Modules
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Rear Transit ion Modules
• Rear Transition Module (RTM)
• Provide additional connectivity for blades
• Connects to the blade through the back of the shelf
CPU blade
type 4-A RTM
CPU blade
type 4-B RTM
ESTE RTM TEM HDNAO TEM HD
HDD (Hard Disk Drive) units• For functional unitsrequirements SAS H
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HDD (Hard Disk Drive) units requirements SAS H
deployed on the RTM
Transition Module) o
CPU blade
• RTM can be equipp
node blade RTM slotCPU blade is located
need own slot)
• A blade can operat
RTM, but a RTM alw
front blade
Disks in ATCA MSS/HLR
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Disks in ATCA MSS/HLR
- There are several units with hard disks in ADX2 like OMU, DBDU, ACU,
- Functionality and visibility from system or MML point of view is still the s
Classic HW- HW implementation totally different
In classic we have independent WDU and CPU (Can be in same cart
In ATCA disk is attached to CPU RTM (CPRT4-A)
SAS disks used (2.5”)
Same disks used in Classic HW in case of DCAR1-A
Current sizes: 73GB, 146GB and 300GB (AB3)
Even disk is on blade RTM, it’s seen on redundant unit even when unstate
Disks in ATCA MSS/HLR cont
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Disks in ATCA MSS/HLR cont.
- Changing CPU will affect also to disk states
Removing CPU will disable also disk on RTM, so it won't be a
redundant unit.
CPU
CPU
RTMSAS
DISK
RTMSAS
DISK
uP
uP
SAS diskcross-sharingcable
Removable Media
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Removable Media
- In ATCA only option for removable media are USB connected de
No SCSI attached devices like in Classic DX
- Supported devicesUSB sticks
- There has seen also some incompliant types
- Preferred to use Kingston USB’s without any extra features
- FAT32 and FAT16 file formats supported, FAT16 only in boo
case.
USB disk drive (EXTDH-A)
Interface Plugs (SFP/SFP+/XFP)
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Component Description
SFPCS Copper 10/100/1000 Mbps SFPtransceiver
SFPF2L Optical 1Gbps SFP transceiver(short range)
SFPSM-A Optical 1Gbps SFP transceiver(long range)
SFPS1L Optical 10Gbps SFP+ transceiver(long range)
SFPPSM Optical 10Gbps SFP+ transceiver(short range)
SFPPMM Optical STM-1 SFP transceiver(long range)
XFPMM-A Optical 10Gbps XFP transceiver(short range)
XFPMM-A
SFPSM-A
VIDE ITEM 11 DO PDF: Installation Site Requirements for ATCA Hardware
Filler units
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• All empty slots must always be equipped with filler units
• Ensure proper airflow through the shelf
• Provide EMI shielding• Blade filler (ASFF6-A)
• RTM filler (ASFR6-A)
• AMC filler (AMCSF-A)
AMC filler RTM filler
Não podemos ter buracos abertos no shelfdevido a radiações eletromagnéticas (altafrequência) e de dispersão de temperatura.
Interconnection
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• Base interface (BI) 1 Gb dual-star Ethernet
Each node blade has one BI to both hub blades Hub blades have one BI between them
Both hub blades have one 100 Mb BI to the shelf managers
• Fabric interface (FI) 10 Gb or 1 Gb dual-star Ethernet
Each node blade has one FI to both hub bladesWhen configured as 1 GbE, selected slots have additional
FI connections (2 x 1GbE to slots 4-6, 1 x 1GbE to 11-14)
FI is for external message transfer & BI is for internal message tra
Blade connectivity 1/2
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y
• Blades connect to shelf backplane
• Shelf backplane divided into three zones
ZONE 1
ZONE 2
ZONE 3
Power feed
ManagemeBase interfaFabric inter
Zone 3 is used
for connecting
RTMs to blade
Test bus
Update cha
sync. clock
Blade connectivity 2/2
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y
AMC
slot
AMC
slot
Front blade
Zone 1
Zone 2
Zone 3 RearTransition
Module
Backplane
Shelf side view
Thumb screwssecure blades
to the shelf
Ts
t
Shelf Backplane (front view)
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P20
P21
P22
P23
P24
J10
External connectivity options 1/2
Core de dados
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External connectivity options 2/2 Core de voz
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Toda a conexão do user-plane éfeita por aqui (IP/STM-1).
Power feeding
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- Separate power feeding for each shelf
- Provided by a redundant pair of Power Entry Modules (PEM)
- PEMs located on the lower rear side of the shelf- PEMs connect to Power Distribution Units (PDUs)
PDU overview
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- Each shelf requires two Power Distribution Units (PDU)
- PDU provides protection against surges
- PDUs provide redundant power to the PEMs
- PDUs are installed in the rear of cabinet on both sides of shelf
- One PDU has two inputs from site power supply• A single input powers up half of the shelf
- PDU has four output feeds for a single PEM• Each feed powers up certain units in the shelf
Power distribution within a shelf
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Cooling - 1/2
Each shelf is cooled by three Fan modules
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Each shelf is cooled by three Fan modules
• Fan Modules are in 2 + 1 redundancy
• Fan Located on the upper rear side of the shelf
• Fan modules hot swappable
• Fan also provide forced air coolingFan modules
Back view
•The ATCA 2-slot shelf provides a cooling capacity of 320 W for
each front blade and 35 W for each RTM. In a NEBS
environment the shelf can manage a heat dissipation of 230 W
for a front blade and 25 W for an RTM. The shelf is cooled with
two redundant fan modules that are located at the front and
rear sides of the shelf.
•Air is drawn from the front of the shelf through the air filters.
•The air is conducted over the front blades and RTMs before
exiting through the rear fan module.
•Empty slots must be equipped with filler units to ensure
normal air cooling for adjacent slots.
Cooling - 2/2 Fan speed controlled by the shelf manager
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Front view
p y g- Based on temperature sensor readings
Maximum power dissipation• 200W per front node slot
- 25W per RTM slot
Air inlet via NEBS air filters
The PICMG 3.0 specification calls for a conventional forced-air cooling system in the shelf. The Ashelf and blade form factors support 210 W, 220 W or 230 W of power dissipation for each singl
depending on the configuration, and 25 W for each RTM. The ATCA Hardware Platform meets threquirements by employing 3 fan modules with 2 impellers each. Redundancy is also provided
each fan module to both power entry modules. The shelf manager monitors and controls the coominimising audible levels and dealing with failure situations.
Air is drawn through the bottom front of the shelf through an air filter that meets NEBS requiremconducted over front blades and rear transition modules before exiting through the rear at the to
FRU Types and cooling in shelf
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FRU types
- Front board (blade)
- Power entry module- Shelf manager ( Dedicated )
- Fan tray, Fan filter tray
- Advanced mezzanine card, AMC
- Rear transition module, RTM
Zone 1
Zone 2
Zone 3
Air Filter
Front Cable Tray Blade
This is showing the motherboard architecture of ATCAshelf.
Hardware management
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• Shelf Manager perform FRU (Field Replaceable Unit) managemen
level
• A redundant pair of Shelf Managers in each shelf• Shelf managers located on the lower front side of the shelf
Shelf managers
HW Management (1/2)
ATCA HW i d i th i t lli t l tf t i t f (IPM
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ATCA HW is managed via the intelligent platform management interface (IPM
• Each independent component has IPMI Controller which controls the com
enables connection to system level
• ATCA Building blocks are called as Field Replaceable Unit (FRU)
The ATCA shelf management system consists of redundant shelf managers
shelf and their connections to the FRUs and the system manager software c
shelf managers
The shelf managers are controlled by thesystem manager which is a higher
management application which consists of software running on a CPU blade
resides in OMU.
IPMI: interface specification that provides inventory management, monitoring, l
control for the elements of a computer system
Note: For example: In ATCA ,The hardware management is implemented with
platform management interface.
HW Management (2/2)
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• The hardware management system watches over the basic
• health of the system
Reports anomaliesTakes corrective actions if needed
• The highest management entity is the System Manager
• The Shelf Manager is responsible for all FRUs in a single shelf
• Each blade has an IPMI controller (IPMC)
• Each AMC has a Module Management Controller (MMC)
• RTMs are managed over I2C bus through front blade IPMC• Packet processing blade RTM has it’s own MMC
OMU
Hardware Management System
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HW Management key tasks
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• Redundant system event Log (SEL) for logging important platfor
• Platform auto cooling and temperature control
• Hot Swap Management• Platform power-on, power-off, shutdown management (handled
manager software)
• FRU Information Storage
• Wired alarms supervision
• Local sensor monitoring (voltages and temperatures)
• Support for fault locating• wired alarms health diagnostics and line loop back diagnostics
IPMB Addressing
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- Shelf IPMB addressing conventions
• Each of the 16 blades and the two shelf managers within each
a unique IPMB address. For example, blade in the physical sloIPMB address 92h and the left shelf manager an IPMB addres
• The two shelf managers have a unique IPMB address: left she
10h and right 12h. If a blade needs to communicate with eithe
physical shelf managers they use these addresses. In that cas
not communicating with the shelf manager, but just a normal f
replaceable unit. However, all communication from blades to tmanager entity is directed to address 20h, the address of the
manager.
IPMB Address Conversion TablePhysical slot IPMB address (hexadecimal) Slot type
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y ( ) yp
1 9E node blade
2 9A node blade
3 96 node blade
4 92 node blade
5 8E node blade
6 8A node blade
7 86 node blade
8 82 hub blade
9 84 hub blade
10 88 node blade
11 8C node blade
12 90 node blade
13 94 node blade
14 98 node blade
15 9C node blade
16 A0 node blade
left shelf manager 10 shelf manager
right shelf manager 12 shelf manager
active shelf manager 20 shelf manager
Timing and Synchronization 1/2
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- Synchronization is used by various
units:
Blade units
DSP units Line interface units
- CPU units need accurate timing
for:
Timing of CDRs
100 Hz timing signal for DX
Timing and Synchronization 2/2
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- Sync clock can be derivedfrom various sources• SDH/Sonet line input• External reference
(BITS/SSU)• MCG internal oscillator
- Master Clock Generator(MCG) located in the Type 3hub blade
- MCG re-generates and
distributes the clock signalwithin a NE
Cabinet level synchronizationExt
Outputs tootherequipment
Rack #1 Rack #n
Between racks- 19.44 MHz distribution- Line references
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- Each shelf has 2 MCGs One in each hub blade
- MCGs work in a primary /
secondary configuration Primary MCG negotiated over the
update channel
- Clock input / output ports in hub
blade RTM
- 2.048 MHz or 1.544 MHz clock
signal distributed between
shelves
references equipment
Shelf #1
Shelf #2
Shelf #1
Shelf #2
Shelf #3 Shelf #3
MCG1 MCG1MCG
MCG2 MCG2 MCG2
MCG2 MCG2 MCG
Shelf level synchronization
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- MCG distributes clock signals within a shelf to all blades
- Distribution through the backplane synchronization interface
Two clock signalsCLK1 = 8 kHz
CLK2 = 19.44 MHz
Summary
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The ATCA Blade provides a full hardware platform including e.g. ca
blade, RTM, AMC module, power supply, cooling system and hard
management solution The ATCA Blade HW offers flexible and scalable storage solution.
Dual-star Gigabit Ethernet backplane connectivity provides reliable
proof interconnection solution
ATCA specifications is based on PICMG 3.0
MSS and MGW use ATCA based node in CS core.