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ATCA FlexChassis 12U (14-Slot) DC

1. 900 A A A AS A doch PO A O A A EEEE A A A see A A A A A EEEE A A A O A er s 1 A A a CC A A A ae A RE eee O eee ieee desde Misa a n n g A i 500 J sa 08 t 4 dei 5 E o 400 Xx 300 4 200 4 4 100 4 4 4 0 1 2 3 4 5 6 7 8 9 10 1 12 13 14 Slot Position Figure19 Rear slot Air Velocities 12U 14slot ATCA 466 cfm D Avg Top Top Mid Bottom Mid Bottom 600 UE PRESS A SAS E A A A AO O SR PS SEE PES PE Ss O PE A O A E A SE A A A E ES 5 3004 3 m 1 4 Mf L AA ea ne AA A Sea a a A A q ia 200 R ae L oN A ISS A LA 100 4 H 4 4 0 1 2 3 4 5 6 7 8 9 10 ti 12 13 14 Slot Position Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual 7 2 Thermal Power Dissipation at Various AT Figure 20 shows the approximate cooling capabilities of the Shelf per slot based on different temperature increases across the board with standard air For example with a 15C rise 310W could be achieved on an ATCA board Figure 20 Thermal Power Dissipation at Various AT 100 a 3 D 3 Temperature Increa B 3 100 200 300 400 500 600 700 Watts per Board 7 3 Fan Failure Mode The HSP cooling architecture was designed with a fan failure in mind HSP allows air to flow through
2. Color Description Status Condition Green In Service LED Off PEM is inactive Solid Green Normal Operation Red Amber Out of service LED Off Solid Red No error Error condition Warning LED Solid Amber 48Vdc not connected Blue Hot Swap LED off PEM is active Long blink Request for activation Short blink Request for deactivation Solid blue PEM is inactive 6 13 PEM Connector Pin Assignment Table 17 PEM Connector pin assignment fro connection connection a EI E NES a 1 i return iti SDA Local I2C data Hardware Address line 1 PROM_SCL Local 12C clock Fan Filter Se M48VRTN_2 48V return asi signal A4 P12V_Y2 Eli SHELF_GND Chassis ground O VCC3 a Blade M48VRTN_3 48V return Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual A4 B2 HA2 Hardware D2 SCL A IPMB A clock Blade M48V_1 cal volts Address line 2 B1 B3 HAO Hardware D3 SDA_A IPMB A data Blade M48V_2 eee volts Address line 0 B2 D4 SCL_B IPMB B clock M48V_3 48 volts B3 VCC3 3 3 volts SDA_B IPMB B data Blade M48V_4 48 volts B4 Ee e AI ee E Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual 7 Thermals The ATCA 12U 14 Slot FlexChassis incorporates a patented Hybrid Serial Parallel HSP cooling architecture HSP takes advantage of both the fan laws below while best utilizing the available space in a 12U shelf Fans in Parallel Law Flow rates are additive while pressure rem
3. 4 7 3 Alarm Silence Push Button The Alarm Silence push button on the Shelf Alarm Panel faceplate deactivates the alarm relays During the time Alarm Silence is activated the Alarm LEDs flash By pressing the Alarm Silence push button a second time the alarm relays are reactivated and the Alarm LEDs are solid Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual The Alarm Silence push button only activates the Alarm Silence state but does not reset the alarms If the silence interval default 600 s is exceeded without resolving the alarms the alarms will be re initiated 4 7 4 Alarm Reset Hardware Reset Two relay inputs at the DB15 connector are used to reset the Minor and Major alarm state The reset inputs accept timed pulse inputs for clearing Minor and Major alarm states Reset is accomplished by asserting a voltage differential from 3 3 VDC to 72 VDC for between 200 ms and 300 ms The acceptance voltage range is from 0 to 48 VDC continuous handles up to 60 VDC at a 50 duty cycle The current drawn by a reset input does not exceed 12 mA DI There is no hardware reset reset input for the Critical Alarm state Software Reset The RMCP and CLI functions can be used to set and reset the Telco Alarms incl Critical Alarm See the Pigeon Point Shelf Manager External Interface Reference for more information 4 8 SAP Connectors 4 8 1 SAP Telco Alarm Connector DB15 male Figure 16 Telco Alarm Conn
4. ALARM SILENCE Critical Alarm Major Alarm SDA SCL 12C Bus CHO 0x96 0xa6 SAP Presence 120_PWR_A ShMC1 I2C_PWR_B ShMC1 I2C_PWR_A ShMC2 12C_PWR_B ShMC2 N AN AN ZN INV_ACTIVE_ACB1 INV_ACTIVE_ACB2 Serial Console of Shelf Manager 1 Serial Console of Shelf Manager 2 4 4 DSAP SEEPROM 12706921 The SAP SEEPROM is connected to the Master Only I C bus and is a Microchip 24LC256 device 4 5 DSAP I C Addresses Table 3 DSAP 1 C Addresses LM75 SEEPROM PCA9555 0x96 0x4b Oxa6 0x53 0x44 0x22 Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual 4 6 Connection between Shelf Manager and DSAP Figure 8 Connection between Shelf Manager and DSAP MN 3 y O SERIAL 1 Ma 202 O ZIO SERIAL 2 cRIT 1 R _ Pe Buffer LTC4300 ShMM 500 12706933 4 7 SAP Telco Alarms 4 7 1 Telco Alarm Interface The SAP provides a Telco Alarm interface on the DB15 male connector Three relay outputs are used for remote alarm distribution reflecting the state of the three Alarm LEDs The relays are capable of carrying 72 VDC or 1 A with a max rating of 30 VA 4 7 2 Telco Alarm LEDs The Shelf Alarm Panel provides the Telco Alarm LEDs These LEDs indicate presence of Critical Major and Minor alarms as follows Table4 Telco Alarm LEDs O pee pee w em C Flashing P Alarm active but silenced
5. Connection between Shelf 18 18 Front slot Air Velocities 35 Manager and DSAP 9 Telco Alarm Connector 19 19 Rear slot Air Velocities 35 DB15 male 10 Shelf Alarm Panel Backplane 20 20 Thermal Power Dissipation at 36 Connector Various AT Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual Tables I D Table Page 1 Terms and Acronyms 8 2 14 Slot ATCA backplane physical to logical slot mapping 12 3 DSAP I C Addresses 17 4 Telco Alarm LEDs 18 5 Telco Alarm Connector CN2 Pin Assignment 19 6 Shelf Alarm Panel Backplane Connector Pin Assignment 20 7 PCA9555 Device Function 21 8 RS 232 Serial Connector Cisco Pin assignment default 22 9 RS 232 Serial Connector EIA TIA Pin assignment 22 10 Fan Tray Backplane Connector pin assignment 25 11 Fan Tray Sensors 26 12 LEDs on Fan Tray front panel 27 13 Fan Tray IPMB Addresses 27 14 PEM IPMB addresses 30 15 PEM Sensors 31 16 LEDs on Fan Tray front panel 32 17 PEM Connector pin assignment 32 18 Technical Data 41 Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual 1 Safety The intended audience of this User s Manual is system integrators and hardware software engineers 1 1 Safety Symbols used in this document Hazardous voltage This is the electrical hazard symbol It indicates that there are dangerous voltages inside the Shelf A A Caution A This is the user caution symbol It indicates a condition w
6. Controller devices on the PEM PCB The Shelf Manager has access to these signals via IPM Bus Table 15 PEM Sensors Sensor Description o Normal Thresholds Name Lower Lower Lower Upper Upper Upper Critical Non Critical Non Recoverable Non Critical Critical Non Recoverable Hot Swap FRU State M1 M2 M3 M5 M6 M7 Information ShelfFRU FRU State M1 M2 M3 M5 M6 M7 HotSwap Information Version Version change change IPMB IPMB bus Physical state Sensor Sensor Sensor fuse Fuse 8 Asseted Asserted Deasserted fuse assenea Fuse 10 gt assenea Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual Presence present DS75 Temperature Temp Sensor Voltage il Sensor 24 480v oy 48 0V 2 Sensor oe nee Peps se E E Sensor 48 0v 3 Voltage 480V 7 Sensor Sensor 6 12 PEM Connectors and Indicators The front panel includes the following indicators o Green LED In Service o Bicolor Red and Amber LED Out of Service o Blue LED Hot Swap The PEMs have an Injector Ejector handle that interfaces with a mechanical switch and signals the IPM Controller for hot swap Once the operator opens the handle the switch is released and the Shelf Manager is informed of the pending extraction When the Shelf Manager feels it is safe to remove the PEM the blue Hot Swap LED illuminates solid Table 16 LEDs on PEM front panel
7. and around a locked fan In addition the entire fan module serves as an intake for air flow If one of the four fans in a fan module fails the worst case reduction in velocity or flow rate is less than 15 The shelf can operate indefinitely with a fan failure at low operating temperatures Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual 8 Service Interval The purpose of this is to develop an analytical model to estimate the transient response of a typical ATCA blade and heat sink assembly for various field service events An example of a field service event would be the replacement of a fan tray while the system is operational A service interval is defined as the allowable time a technician has to replace a fan tray without overheating the system Several simplifications and assumptions must be made and are listed below O Temperature gradients in the heat sink are negligible Good assumption for heat sinks with high efficiency fins and base plates of high thermal conductivity The biot number must be lower than 0 1 Thermal mass of heat sink is much larger than heat source processor Good assumption for large heat sinks No heat loss due to radiation Good assumption for case temperature below 100C and high flow rates All the heat flows from the source processor to the heat sink This ignores heat transfer to the board This is a worst case assumption Values for heat sink thermal resistance and mass must be known
8. backplane along with the Interconnect board Table 2 14 Slot ATCA backplane physical to logical slot mapping Figure 1 Power Segmentation LUI Update Channel Routing O Power Segment 1 BI Power Segment 2 L Power Segment 3 2 PEM s power the 4 segments Each segment is rated at 25A _ Power Segment 4 PEMA Each PEM is rated at 100A max 2 1 1 SEEPROMs The SEEPROMs are the repository of the shelf specific information capabilities of the system and other Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual user configurable options The SEEPROMs contain the list of which slots are connected together how the update channels are routed how many slots are in the system what the maximum power is to each slot serial number of the shelf backplane topology etc The Shelf Manager uses this information to provide functions such as electronic keying controlling the power state of the system etc The SEEPROMs receive redundant 3 3V power from each of the PEMs which is diode OR d As long as one PEM has power the SEEPROMs are functional There are two locations in the Shelf where the chassis FRU data can be stored The default configuration has the redundant SEEPROMs installed in sockets on the backplane The Shelf also supports a second configuration where the chassis FRU data is stored in a SEEPROM located on each PEM The Shelf allows for 3 methods to chassis FRU data o Anl2C connection from each Shelf Manag
9. ia 17 44 DSAP SEER ROMs anelli lisi as nantes 17 AS DSAPICEAddESS O Sri 17 4 6 Connection between Shelf Manager and DSAP nono nonnonancnnnnnnos 18 ALAS AR TOCAN a A AA ALA RS 18 4 7 1 A NT 18 42 TICO AA LEDS leleine 18 4 3 0 Alammolence P sh BUtt N ds 18 AA Alai Reset rra 19 48 SAP COMBOS sist dais acti 19 4 8 1 SAP Telco Alarm Connector DB 15 male Figure 16 Telco Alarm Connector 19 4 8 2 Shelf Alarm Panel Backplane Connector nono nonnonancnnnnnnos 20 4 9 SAP Temperature Sensore e eae 21 ALO ARRE AI ebbi pela 21 4 11 RS 232 Serial Console Interface on Shelf Alarm Panel 21 4 12 SAP Console Cable for the Shelf Manger Serial Interface 23 Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual ran Trays Modules aia taa ld a a 24 O GTEC RUN a IO A GA 24 2 F nctional Desc a leali 24 i ins O SU crd e dia dal eds 24 5 4 Fan Tray Block DIAM AS A AAA RA 24 A NS 26 5 6 Fan Tray Temperature Senso ati IN 26 5 7 Fan Tray Connectors and Indicators ui ia 26 5 6 Fan Tray IP MB AGGrESSOS ui alas 27 A NTS ge A E Cane See a O eon ne ee 27 b Power E try Module REM ns oct an narco Saad 28 6 1 INTO CON ld iria 28 6 2 OS IUCN o chie oi da bll 28 6 9 DIMENSIONS art ltda 28 CA Cabingacrrr lena lalla 28 OCA MA a e cued O be aa 28 0 5 1 Urge OM PICO lalla 28 SI a el 0 PIAACS ghi ice et
10. of parts to assemble and has been designed for low cost with high functionality and reliability Plastic buttons have been installed to the left side of the FTM to provide a smooth sliding mechanism against the steel walls of the Shelf and against the adjacent FTM An Injector Ejector handle at the left provides the Hot swap mechanism The Handle locks directly to the FTM via a Phillips screw fastener Four 92mm high powered 150CFM fans are installed and harnessed directly to the FTM board 5 4 Fan Tray Block Diagram Figure 14 Fan Tray Block Diagram Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual MON_48V LOW A MON_48V LOW 8 MON_48V FSF A Hot Swap Switch Table 10 Fan Tray Backplane Connector pin assignment Pin Signal Description i i Description 1 NSEAT Seated Signal for IPM Controller grounded on Backplane 2 3 SGND Shelf Ground 4 16 GND Fan Presence Signal for Presence Shelf Manager 5 17 HAO Hardware Address 6 SCL_A IPMB A Clock 18 HA1 Hardware Address 7 SCL_B IPMB B Clock 19 HA2 Hardware Address 8 GND Logic Ground 20 HA3 Hardware Address 9 21 GND Logic Ground 10 GND Logic Ground 22 SDA_A IPMB A Data 11 23 SDA_B IPMB B Data 12 24 GND Logic Ground BLADE1 48V_A 48 VDC Feed A BLADE3 48V_B 48 VDC Feed B BLADE2 VRTN_A RTN Feed A BLADE4 VRTN_B RTN Feed B Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual 5 5 Fan Tray Sig
11. D Wrist Strap Terminal is located at the upper rear side of the chassis Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual 2 Board Specifications Within the Shelf there are three fixed boards o Midplane o FTM Distribution board o Interconnect board These boards are completely passive and are not Field Replaceable Units The Interconnect board provides power and signals from the Backplane to the FTM Distribution board and eliminates the use of cables within the chassis This improves the reliability of the Shelf 2 1 Midplane The standard backplane is based upon PICMG 3 0 specifications for mechanical attachment to the card cage The backplane is mounted in such a way as to allow for replacement with minimal chassis disassembly requires removal of PEM Payload boards ShMC s and Interconnect board using only simple tools such as screw and nut drivers The backplane is not a FRU Hub slots 2 are located in physical slot 7 and slot 8 The backplane PCB is made from 15610 material and provides dual star Base Interface and dual star Fabric Interface connections at each node slot with Segmented power Section 2 1 1 and direct mating to the PEM Backplane tests show performance at 3 12Gb s with margin up to 4Gb s The channel skews are less than 6ps The Shelf Manager cards and Shelf Alarm Panel are designed to be installed via the right section of the backplane slot 0 The PEMs are installed in the rear section of the
12. PICS pot ei A le a A 29 6 6 PEM COMDONENIS 1 n a A db 29 6 7 PEM BlOCK Did Misc ade 30 6 6 PEM UIPMB addresses ata N 30 50 PoOwer DIStHDUIOM coda a a dida 30 6 10 Specification for the power connection cables i 31 6 11 REMESAS AE E ANA 31 6 12 PEM Connectors and Indicators iia drid 32 6 13 PEM Connector Pin ASSIQGNMEnNt reali 32 E INM Sd A E 34 7 1 Typical Airflow Velocities through the SIO S canon nono nonncnnnnns 39 7 2 Thermal Power Dissipation at Various AT i 36 Eo Fan Failure Modes tartas tl oi colon It IES 36 A o A fa 37 SS ACUSA lr 37 8 1 1 25C Ambient Temperature eee ilaele 38 8 1 2 35CG Ambient Temperature ae 39 8 19 40C Ambient Temperature corea eee ia 40 SZ SUM Vasca leali 40 A O ii glio Ce ida iii i E o e a 41 Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual Figures 1 D Figure Page 1 D Figure Page 1 Power Segmentation 12 11 RS 232 Serial Console Interface on 22 Shelf Alarm Display 2 Shelf SEEPROM Locations 1 13 12 RJ45 to DB9 Serial Console Cable 23 Cisco option default 3 Shelf SEEPROM Locations 2 14 13 RJ45 to DB9 Serial Console Cable 23 EIA TIA option 4 Logic Ground 14 14 Fan Tray Block Diagram 25 5 Shelf Manager Components 15 15 PEM Components 29 6 Front Panel DSAP 16 16 PEM Block Diagram 30 7 DSAP Block Diagram 17 17 General airflow path for the 12U 34 14 slot ATCA Shelf 8
13. RI Continuous Computino ATCA FlexChassis 12U 14 Slot DC User Manual Document CC08100 9450 Carroll Park Drive San Diego CA 92121 2256 858 882 8800 www ccpu com Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual O 2001 2009 Continuous Computing Corporation All rights reserved The information contained in this document is provided as is without any express representations of warranties In addition Continuous Computing Corporation disclaims all implied representations and warranties including any warranty of merchantability fitness for a particular purpose or non infringement of third party intellectual property rights This document contains proprietary information of Continuous Computing Corporation or under license from third parties No part of this document may be reproduced in any form or by any means or transferred to any third party without the prior written consent of Continuous Computing Corporation Continuous Computing the Continuous Computing logo Create Deploy Converge Embedded Solution Partners The Embedded Solution Experts Flex8 Flex21 FlexChassis FlexCompute FlexCore FlexDSP FlexPacket FlexStore FlexSwitch FlexTCA Quick Start TAPA Trillium Trillium plus the Trillium logo and upSuite are trademarks or registered trademarks of Continuous Computing Corporation Other names and brands may be claimed as the property of others The information contained in this document i
14. The Hot Swap switch indicates to the Shelf Managers that the Fan Tray is about to be removed lts use is optional but it is provided so that service personnel can be trained to look for a blue LED to be illuminated on any active component before removing it from the system Once the operator releases the Hot Swap switch the Shelf Manager is informed of the pending extraction When the Shelf Manager feels it is safe to remove the Fan Tray the blue Hot Swap LED illuminates solid Table 12 LEDs on Fan Tray front panel Description Status Condition Green In Service LED Off Fan Tray is inactive Solid Green Normal Operation Red Amber Off No error Warning LED Solid Amber not used Blue Hot Swap LED Off Fan Tray is active Long blink Request for activation Short blink Request for deactivation Solid blue Fan Tray is inactive 5 8 Fan Tray IPMB Addresses Geographic address pins HAO HA1 HA2 HA3 at the Fan Tray Backplane connector determine the hardware addresses of the devices Table 13 Fan Tray IPMB Addresses Fan Tray middle 0x2D Hardware Ox5A IPMB Fan Tray right 0x2C Hardware 0x58 IPMB 5 9 Redundancy The fan tray has been designed to maximize redundancy within a single fan tray o Power draw from A amp B feeds with lines individually fused o The control circuit is designed so that if the management circuitry does not provide the proper control signals the fans default to full speed o When the fan
15. a low profile cable management system 1 12 Air Intake Panel A lower front removable air intake panel provides the EMI containment for the lower section of the Shelf The panel is easily removable via two fasteners 1 13 Air Filter The air filter is easily removable from beneath the card cage This filter element is an open cell polyurethane foam specially coated to provide improved fire retardation and fungi resistance It features deep loading large dust holding capacity low air resistance and complies with NEBSGR 63 CORE There is a switch to detect whether an air filter is installed This switch is exposed to the Shelf manager as a presence sensor on the Power Entry Modules 1 14 Rear Hex Panel A removable rear hex panel allows for a low impedance exhaust attenuates EMI while providing protection from the rotating fans and helps prevent flames from exiting the Shelf in case of a fire 1 15 Rear Lower Section The lower rear section contains provisions for the Power Entry Modules The structure allows for the FRUs to be easily removed and secured while also providing additional structural integrity to the Shelf Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual 1 16 ESD Wrist Strap Terminals Danger of electrostatic discharge A The Shelfcontains static sensitive devices To prevent static damage you must wear an ESD wrist strap One ESD Wrist Strap Terminal is located at the upper front side and one ES
16. ains that of a single fan Fans in Series Law Pressures are additive while flow rate remains that of a single fan The system provides cooling for the front card cage and rear card cage Maximum air volume is achieved with a convex intake area located at the lower front of the Shelf Air is exhausted through a Hexcel honeycomb bezel with 97 open area and low impedance Design is optimized for beyond 200W board and is Fault Tolerant using the HSP fan arrangement scheme that provides uninterrupted cooling Front View of Shelf Side View of Shelf Fans in Parallel Fans in Series From the shelf front view the fans are staggered in each fan module thereby achieving a parallel configuration From the shelf side view the fans are placed in a serial configuration This HSP combination exploits the best of both fan laws high flow rates and high pressure HSP has many other advantages such as superior fault tolerance and uniform airflow distribution HSP is fully compliant with PICMG section 5 1 because the airflow is front to rear and bottom to top This requirement ensures that heated exhaust air from a lower shelf in a frame does not impose heated air into the shelf above it Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual 7 1 Typical Airflow Velocities through the slots Figure 18 Front slot Air Velocities 12U 14slot ATCA 466 cfm D Avg Front 5cm Front Middle icm Rear Middle 15cm Rear 22cm
17. at fits into a dedicated Shelf Manager slot in an ATCA 12U 14 Slot FlexChassis The Shelf Manager has two main responsibilities 1 Manage track the FRU population and common infrastructure of a Shelf especially the power cooling and interconnect resources and their usage 2 Enable the overall System Manager to join in the management tracking through the System Manager Interface which is typically implemented over Ethernet The Shelf management based on the Pigeon Point Shelf management solution for ATCA products The Shelf management software executes on the Pigeon Point Shelf Management Mezzanine 500R ShMM 500R a compact SO DIMM form factor module installed on the Shelf Manager Carrier board The Shelf Manager Carrier board includes several on board devices that enable different aspects of Shelf management based on the ShMM 500R These facilities include I C based hardware monitoring control and GPIO expander devices The Shelf Manager Carrier board also provides the Fan Controller for up to 9 fans and individual Ethernet connections to both Base Hubs ShMC cross connect according to PICMG Engineering Change Notice ECN 3 0 2 0 001 The Shelf Manager communicates inside the Shelf with IPM controllers over the Intelligent Platform Management Bus IPMB The Shelf Manager also provides an IPMB interface for the non intelligent FRUs in the ATCA 14 Slot FlexChassis The Shelf Manager communicates with the non intelligent FRUs over I C
18. busses and exposes the sensors for these FRUs at IPMB address 0x20 Figure 5 Shelf Manager Components 1 Extraction handle Backplane connector J2 2 ShMM 500R 6 Backplane connector J1 3 RTC backup capacitor 7 Fixing screw 4 Carrier board O Please refer to the separate user manual for Shelf Manager for ATCA 6 8 14 Slot DC powered FlexChassis for more details Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual 4 Shelf Alarm Panel 4 1 Introduction Some Shelf Manager I O functionalities have been moved to a separate board called Shelf Alarm Panel SAP The Shelf provides provisions for one SAP location The SAP major features are 3 Shelf Alarm LEDs MINOR MAJOR CRITICAL The Telco Alarm connector DB15 male O O O O The Alarm Silence A serial console interface for Shelf Managers RJ45 connector O The I C enabled DSAP can only be used together with Shelf Managers 4 2 DSAP Figure 6 Front Panel DSAP 2 1 Fixing screw Serial Interface for Shelf Manager 1 LED Minor Alarm red LED Major Alarm red LED Critical Alarm amber LED USER 1 DUO WwW N Document CC08100 10 11 12706932 LED USER 2 LED USER 3 Telco Alarm Connector Alarm Silence button Serial Interface for Shelf Manager 2 FlexChassis ATCA 12U 14 Slot DC User Manual 4 3 DSAP Block Diagram Figure 7 DSAP Block Diagram User 1 User 2 User 3 Critical Major Minor
19. e Shelf The SEEPROMs are accessible through a removable panel The 12C address for these SEEPROMs is 0xA4 Figure 2 Shelf SEEPROM Locations 1 The Shelf also provides a second configuration with a SEEPROM located on each PEM For the third configuration the I2C connections to the SEEPROMs are configurable by switches SW1 and SW2 on the Backplane Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual Figure 3 Shelf SEEPROM Locations 2 Default configuration is SW2 closed and SW1 open The Shelf Mangers have access to the SEEPROMs via I C bus Channel 1 and Channel 2 In an alternate configuration SW2 is open and SW1 is closed so that the SEEPROMSs on the CDM are connected to the internal I2C bus on the PEMs 2 1 3 Logic Ground The ATCA Backplane provides a mechanism to connect Logic Ground and Shelf Ground To connect Logic Ground and Shelf Ground mount an additional backplane mounting screw M3 x 12 mm with an adequate washer at a position labeled with GND Figure 4 Logic Ground 2 2 FTM Distribution Board The FTM distribution board provides the signal and power connections to the upper FTMs from the backplane 2 3 Interconnect Board The interconnect board connects the backplane to the FTM distribution board Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual 3 Shelf Manager The Shelf Manager for ATCA 6 8 14 Slot DC powered FlexChassis is a 78 mm x 280 mm board th
20. ector Figure 9 Telco Alarm Connector DB15 male 15 9 e e oc 000 0 6060000000 3 1 12705896 Table 5 Telco Alarm Connector CN2 Pin Assignment Document CC08100 CN2 Pin O WAN DO BW NY o a AO Ne O 15 Shield Name Description AMIR Minor Reset AMIR Minor Reset AMAR Major Reset AMAR Major Reset ACNO Critical Alarm NO ACNC Critical Alarm NC ACCOM Critical Alarm COM AMINO Minor Alarm NO AMINC Minor Alarm NC AMINCOM Minor Alarm COM AMANO Major Alarm NO AMANC Major Alarm NC AMACOM Major Alarm COM APRCO Pwr Alarm NO APRCOM Pwr Alarm COM Shelf GND Shelf Ground FlexChassis ATCA 12U 14 Slot DC User Manual 4 8 2 Shelf Alarm Panel Backplane Connector Figure 10 Shelf Alarm Panel Backplane Connector Pin 16 Pin 1 12706926 Table 6 Shelf Alarm Panel Backplane Connector Pin Assignment SAP ATCA Backplane Connector Pin A Description B Description Cc Description 1 48V_A 48 V Feed A 48V_B 48 V Feed B 2 VEINS Voltage return Feed A YRINS Voltage return Feed B ria 3 6 V from Shelf e 3 6 V from Shelf Manager 1 Manager 1 6 GND Ground GND Ground 12C_PWR_A 3 6 V from Shelf 2 Manager 2 7 SDA_CHO Data 1 C bus GND Ground 12C_PWR_B Channel 0 only 2 lai DSAP anage 8 SCL_CHO Clock C bus INT GND Channel 0 only DSAP 9 INV_ACTIVE_B Active signal from RXDO_ACB1 Receive Data RXDO_ACB2 Receive Data Shelf Manage
21. embly The Biot number for the calculations above is near 0 1 which means the analytical model is valid Previous simulations showed that temperature gradients in the heat sink were small As flow rates increase or base plate thickness decreases this analytical model will no longer be accurate The Biot number should always be checked before additional analysis is performed At ambient conditions of 25C the service interval is indefinite At 35C the service interval is just over 3 minutes At 40C the service interval is one minute This calculation does not account for which FRU is removed however it only takes into account the new heat sink resistance resulting from reduced airflow It is recommended that experimental work to be performed to evaluate the actual ATCA board and heat sink thermal resistance in the chassis to accurately predict service interval Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual 9 Technical Data Table 18 Technical Data Physical Dimensions Height Width Depth with PEM Covers and handles Weight Weight Power Input voltage Cooling Capacity Front Boards RTM Power Consumption Shelf Manager Fan Trays x3 DSAP PEMs EEPROM Board Regulatory RoHS Safety EMI Conducted and Radiated Environmental Document CCO8100 20 97 12 U 17 66 19 rack mount 18 53 66 pounds 40 72VDC Dual Feed min 200 W Board min 25 W Board 10W Board 390W a
22. er directly to the SEEPROMs on the backplane o SEEPROMs on the backplane exposed as a FRU of the PEMs o No SEEPROM on the backplane but SEEPROM installed in each PEM exposed as a FRU of the PEMs It is also possible to have SEEPROMs on the backplane and in the PEMs In this configuration there are four redundant copies of the chassis FRU data The Shelf Managers cache the information that is stored in the SEEPROMs so that the SEEPROM is only needed when the Shelf Managers are first inserted or when the Shelf is first turned on The redundant SEEPROMs ensure that if one is corrupt or non functional the second can provide the necessary information The Shelf Manager determines which information is correct and then synchronizes the SEEPROMs from the internally cached copy of the SEEPROM information The Shelf Manager periodically accesses both SEEPROMs to ensure that they are responding properly If a SEEPROM has failed the Shelf Manager logs the error and raises an error condition to the upper level software When a blank replacement SEEPROM is inserted into the shelf the Shelf Manager automatically detects the newly inserted SEEPROM and synchronizes it with the SEEPROM information internally cached on the Shelf Manager 2 1 2 Shelf SEEPROM Locations There are two locations in the Shelf for SEEPROMs In the default configuration two redundant SEEPROMs are located on the Chassis Data Module CDM The CDM is a PCB at the upper rear side of th
23. from experimentation simulation or a catalog for various airflow rates No preheated air upstream of heat sink Good assumption for heat sinks on the leading edge of card 8 1 Calculations From conservation of energy Esa E E Insert Newton s law of cooling and thermal rate of change Substitute TT E mc E T TL E ri x i E Heat dissipation of source processor Yields the following first order linear differential equation FE x c Heat capacity of heatsink material dy 6 Ey m Mass of heatsink ae z5 Bi Biot number Solution by inte grating factor gives the general solution r Time R Heatsink resistance to air G E Ru de a L Characteristic length of heatsink f Thickess of heatsink base w Characteristic width of heatsink base pei d constant needed for general solution T T E R de E i Bic k Thermal conductivity of heatsink Apply initial condition 8 temporary variable for temperature difference T Temperature of heatsink T 0 7 T Initial heatsink temperature Solve far d T_ _Ambient te mperature d T T E Ry Final particular solution is T T ER HT T E Rp e Biot must be below 0 1 L 5 Rikli Wo Bi Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual 8 1 1 25C Ambient Temperature This is an example of t
24. he service interval given the following parameters during a normal operating condition of 25C Lai T Pos m c E K K K W kg Wkk M 298 298 0 625 0 2 385 40 During service interval at time 16 5 minutes R increases due to reduced flow T Ti Ria m c Es K K KW gl WikgK MW 298 323 12 0 2 385 40 Ful speed ro faut Ful speed FAU removed Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual 8 1 2 35C Ambient Temperature This is an example of the service interval given the following parameters during an operating condition of 35C To Ti Ros m c Es K K KW kg N kgK MI 308 308 0 625 0 2 385 40 During service interval at time 16 5 minutes Rs increases due to reduced flow Ta Ti Rig m c Es K K KW kg J kgK MI 308 333 1 2 0 2 385 40 Ful ipod ro ui FUI spaad FRU removed Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual 8 1 3 40C Ambient Temperature This is an example of the service interval given the following parameters during an operating condition of 40C I Ti Rin m c E K K KW kg YkgK W 318 318 0 625 0 2 385 40 re T Pia m c E K K K W kg J kgK Ww 318 343 1 2 0 2 385 40 100 ry a 70 OU z P wa 20 20 10 0 0 5 10 15 20 25 20 35 time min 8 2 Summary The assumptions made in this calculation are good enough to estimate the transient response of an ATCA board and heat sink ass
25. helf Manager based on Pigeon Point ShMM 500R Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual o One dedicated slot for a Shelf Alarm Panel SAP that provides Telco Alarm interface Alarm Status LEDs and serial interface for the Shelf Manager o Three front pluggable fan trays with 4 high speed fans per tray o Removable air filter that meets the requirements of the Telcordia GR 78 CORE specification o Two rear pluggable Power Entry Modules 1 8 Shelf Dimensions The Shelf height is 12U with a 14slot x 8U x 280mm card cage The configuration allows for the Hub slots to be in physical slots 7 and 8 The rear transition area is 14slot x 8U x 70mm The Shelf is front rack mountable and has provisions for mid mounting The Shelf has been designed for easy access of field replaceable units FRU 1 9 Subrack The Subrack complies per PICMG 3 0 section 2 0 for subracks to support fourteen 8U x 280mm front plug modules and fourteen 8U x 70mm rear transition modules A slot zero is needed for the two Shelf Managers and one Shelf Alarm Panel The front and the rear of the Shelf provide for an ESD wrist strap terminal 1 10 Top Front Cover Panel The Shelf provides for a cosmetic front panel installed in front of the upper FTMs This provides space for a logo and contains the labeling for the ATCA blade slots with their physical slot number Hub slots 7 and 8 are labeled red 1 11 Cable Management The Shelf provides for
26. here damage of the equipment or injury of the service personnel could occur To reduce the risk of damage or injury follow all steps or procedures as instructed Danger of electrostatic discharge The Shelf contains static sensitive devices To prevent static damage you must wear an ESD wrist strap 1 2 General Safety Precautions AN Warning Voltages over 60 VDC can be present in this equipment As defined in the PICMG 3 0 Specification this equipment is intended to be accessed to be installed and maintained by qualified and trained service personnel only o Service personnel must know the necessary electrical safety wiring and connection practices for installing this equipment in a telecommunication environment o Install this equipment only in compliance with local and national electrical codes o For additional information about this equipment see the PICMG 3 0 Specification www picmg com 1 3 References Documentation These documents contain information and specifications related to the requirements listed in this document o Requirements as outlined in PICMG 3 0 AdvancedTCA Base Specification o Requirements as outlined in PICMG 3 0 R2 0 ECN 001 AdvancedTCA Specification o Requirements as outlined in PICMG 3 0 R2 0 ECN 002 AdvancedTCA Specification o Pigeon Point Systems IPM Sentry User Guide and External Interface Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual 1 4 Product Definiti
27. itecture Backplane Passive circuit board providing the connectors for the front boards Power distribution management and auxiliary signal connections are supported CFM Cubic Feet per Minute Chassis Physical structure containing boards backplane PEMs etc same as Shelf CPU Computer Processing Unit DC Direct Current EMI Electromagnetic Interface ESD Electrostatic Discharge European Telecommunications Standards Institute A board intended for use in a star topology backplane that provides connectivity to a number of Node Boards within the backplane A slot in a backplane that is capable of supporting Fabric Boards Mesh Enabled Boards or Node Boards FRU Field Replaceable Unit Fabric Board Fabric Slot FTM Fan Tray Module Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual HA High Availability 12C Inter integrated Circuit bus I O Input Output IEEE Institute of Electrical and Electronic Engineers IPM Intelligent Platform Management IPMB 0 Intelligent Platform Management Interface Intelligent Platform Management Bus This is the logical aggregation of the two IPMB busses called IPMB A and IPMB B JTAG Joint Test Action Group Kbps Kilo Bits Per Second LED Light Emitting Diode LFM Linear Feet per Minute NEBS Node Board Network Equipment Building Standards A board intended for use in a star topology backplane that has connectivity to a Fabric Board
28. m 48V 48V_RTN to Earth Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual ground as defined in EN61000 4 5 and provides protection for the shelf against EN61000 4 5 surge transients The PEM reduces the EN61000 4 5 surge transients to under 100V for a maximum duration of 10 s and under 200V for a maximum duration of 5 s 6 5 2 EFT Compliance The PEM remains operational during a 500V 5 50ns EFT transient from 48V 48V_RTN to Earth ground as defined in EN61000 4 4 and provides protection for the shelf against EN61000 4 4 EFT transients 6 6 PEM Components Figure 15 PEM Components 1 Hot Swap Switch Access 9 2 Out Of Service LED red amber 10 3 In Service LED green 11 4 Hot Swap LED blue 12 5 Injector Ejector Handle 13 6 VRTN Terminal 14 7 48 60VDC Terminal 15 8 Power Terminal cover Document CC08100 12707803 Circuit Breaker Switch EMI Filter Backplane Connector Fan 1 Fan 2 Fan 3 Hot Swap Switch FlexChassis ATCA 12U 14 Slot DC User Manual 6 7 PEM Block Diagram Figure 16 PEM Block Diagram SDA SCL 12C Bus to Backplane SEEPROM SDA SCL IPM Bus A amp B MON_48V Automatic Breaker 12706918 6 8 PEM IPMB addresses Geographic address pins HAO HA1 HA2 on the PEM Backplane connector determine the IPMB addresses of the PEM Table 14 PEM IPMB addresses PEM Location PEM B Right view from 0x66 front PEM A Left view from f
29. nals The Fan Tray provides signals for o Voltage monitoring o Status of the Hot Swap Controller o Status of the 12 V DC DC converter Fan Speed o Temperature These signals are controlled by the IPM Controller devices on the Fan Tray PCB The Shelf Manager has access to these signals via IPMB Table 11 Fan Tray Sensors Sensor Description Normal Thresholds Name Sensor Lower Lower Lower Upper Upper Upper Critical Non Criti Non Non Criti Critical Non cal Recover cal Recover able able Hot Swap M State 0 M4 M1 M2 M3 M5 M6 M7 Information IPMB IPMB 1 Physical Physical 3 3V 3 3 V 12 3 3 V 2 97 3 135 2 91 3 465 3 63 3 7 5 0V 5V 13 5 0V 4 5 4 75 4 4 5 25 5 5 5 6 12 0V 12V 14 12 0 V 9 10 8 03 13 5 14 5 15 52 LM60 Temp 15 25 N A N A N A 61 34 67 55 75 83 Temperature Sensor Fan 1 RPM 2 On 600 Fan 2 RPM 3 On 600 Fan 3 RPM 4 On 600 Fan 4 RPM 5 On 600 48V fuse A 79 V Fuse 8 Asserted 48v fuseB 48 V Fuse 9 Asserted ASV rin RTN FuseA 410 Asserted fuse A AON in RTN FuseB 114 Asserted fuse B 5 6 Fan Tray Temperature Sensor The temperature sensors LM75 in the Fan Trays measure the input and exhaust temperatures of the Shelf 5 7 Fan Tray Connectors and Indicators The front panel includes the following indicators Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual o Green LED In Service o Red LED Out of Service o Blue LED Hot Swap
30. on The AdvancedTCA ATCA 14 Slot FlexChassis is a fault tolerant high availability shelf designed for use in a 19 rack mount and occupies 12U of rack height including a dedicated area for cable management The airflow is optimized for efficient cooling from the angled air entry to the patented Serial Parallel Fan Arrangement This Shelf works with the 200W board power dissipation capabilities of ATCA plug in modules with low noise due to the speed controlled IPMI based hot pluggable fan trays Each of the redundant power entry modules PEMs protect and filter the potential 2800W that the plug in modules may dissipate The PEMs plug directly into the ATCA midplane and deliver power to the backplane in four segments The Pigeon Point IPM Sentry is the heart of the ATCA 14 Slot FlexChassis Shelf Management Each ATCA slot as well as the fan trays PEMs and Shelf Alarm Panel communicate with the Shelf Management Modules via the IPMBs The midplane provides the communications path not only for the plug in boards but the PEM and shelf management modules ShMM 1 5 Part Number Part Number Module 5 02389 FlexChassis ATCA 12U 19 14 slot Dual Star 2 PEMs 3 Fan Tray Modules 1 IPMI monitored air filter O The Shelf Managers and the Shelf Alarm Panel are not included with the Shelf 1 6 Terms and Acronyms Table 1 Terms and Acronyms Term Definition Arr Advanced Telecom Computing Arch
31. r 2 Shelf Manager 1 Shelf Manager 2 right 10 DSR_ACB1 Data Set Read DTR_ACB1 ce acia DSR_ACB2 Data Set Ready Shelf Manager 1 Manager 1 Shelf Manager 2 di CDIA BZ Carrier Detect Shelf DTE AGEZ shoe ta eel Carrier Detect Manager 2 Manager 2 Shelf Manager 1 12 OTS AGBI Clear To Send ele eRe Clear To Send RISESGRI Request To Send Shelf Manager 1 Shelf Manager 2 Shelf Manager 1 13 TXD0 ACB2 Transmit Data Shelf TADO ACBI Transmit Data Shelf i Data IPMB_B Manager 2 Manager 1 only ISAP 147 SUPA Data IPMB_A only RISLARCRZ Request To Send SALE Clock IPMB_B ISAP Shelf Manager 2 only ISAP 15 SAP_PRES SAP Presence SCL_A Clock IPMB_A only signal to Shelf ISAP Manager 16 INV_ACTIVE_A Active signal from SHELF_GND Shelf Ground Shelf Manager 1 left Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual 4 9 SAP Temperature Sensor The LM75 temperature sensor measuring the board temperature is located on the SAP PCB The temperature sensor is either connected to the Master Only I C bus DSAP or the internal I C bus and is accessible via IPMB ISAP 4 10 SAP PCA9555 The PCA9555 device o controls the status of the LEDs o reads the status of the Telco Alarm Cutoff push button o controls the Telco Alarm relays Table 7 PCA9555 Device Function PCA9555 I O pins Function State 0 0 Power Alarm to telco relays output 1 relays powered 0 1 Minor Alarm to telco relays output 1 relays powered 0 2 Major Alarm to telco rela
32. ront 0x68 6 9 Power Distribution The power distribution within the Shelf originates from each PEM and powers all the blades the Shelf Managers the Fan Trays and the SAP For maximum fault tolerance the two PEMs should be independently powered by a separate Feed A and Feed B A single PEM is capable of supplying the 200 watts of power to each blade slot and the necessary power for the Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual Fan Trays and system management If two PEMs are in service each PEM is hot swappable after removing the power input cables from the PEM The PEM has an on board DC DC converter to change 48 V to 12 V 5V 3 3 V to power the IPM controller and other on board devices The 12 V and the 3 3 V feeds are also routed to the Backplane connector The 12 V feed is routed to the other PEM as backup power for the IPM controller This configuration allows the Shelf Manager to communicate with both PEMs even if power is lost to one PEM The 3 3 V feed is routed to the CDM connector on the Backplane to provide power to the Shelf SEEPROM 6 10 Specification for the power connection cables Required wire size Diameter 10 mm resp AWG8 max length 2 5 to 3 0 m suitable for 40 A at 50 C ambient temperature 6 11 PEM Signals The PEM provides signals for o Voltage monitoring o Status of the DC DC converter o Fuse Monitoring o Temperature These signals are controlled by the IPM
33. s PEMs are located at the left and right rear side of the Shelf The PEMs have an Injector Ejector handle that interfaces with a mechanical switch and signals the IPM Controller for hot swap The handle has a captive thumbscrew that activates the hot swap switch and locks the handle securely on the front panel 6 2 Construction The PEM is constructed of 060 aluminum with a chem film finish The top panel is easily removable to provide access to the fuses and headers boarding the PEM EMI gaskets have been installed to all sides of the PEM The PEM is securely attached to the Shelf via two Phillips screw fasteners An Injector Ejector handle at the lower right provides the hot swap mechanism The Handle locks directly to the PEM via a Phillips screw fastener 6 3 Dimensions 3 00 H X 7 5 W X 8 00 D 6 4 Cabling The PEM terminals meet the accessibility and spacing requirements of IEC 60950 Sub clause 2 A dual stud connection is available for each cable These studs are 1 4 in studs with 5 8 in spacing between stud centers The dual studs prevent the power cables from rotating and provide additional secure contacts for the cable lug A plastic housing covers the dual stud power feeds and returns to prevent against accidental shorting The housing is attached via 1 screw and is removable with a Philips screwdriver 6 5 Compliance 6 5 1 Surge Compliance The PEM remains operational during a 500 V 8 20 s surge transient fro
34. s not designed or intended for use in human life support systems on line control of aircraft aircraft navigation or aircraft communications or in the design construction operation or maintenance of any nuclear facility Continuous Computing Corporation disclaims any express or implied warranty of fitness for such uses Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual Table of Contents Tablet Contents aint daa A A 3 FUCHS E E cco nce OSE E EA E TE A alae td i A oa 5 Table Sinoni E alia adelaide A Me OR 6 A E E EROI E E A E 7 1 1 Safety Symbols used in this AOCUMENL cccsccercececssosssesessesrsesssororceassosenseacenseansetonedenetees 7 1 2 General Safety Precautions ti in 7 1 3 References Documentation cion 7 14 Product Denis iia 8 EA A 8 10 Terms and ACTO MS ai 8 ASES ECH A a eee e e lo 9 1 8 Shelf DIMENSIONS israeliana 10 A kirama TE 10 110 TOp Pront Cover Panel tentadora ASS 10 t11 Cable Manage sa 10 A WLU AA A RR 10 ZAR CREA 10 Reato Rane online atenei 10 AREA bower Section raid lella 10 165ESODWriststrapleminesserthe aeneon e 11 Ze Board Specifications daa das 12 ZIMIO ERAS ESA SE ANA 12 2AA SEERPROMS os e a lune died 12 2 122 Shelf SEEPROM Locations il 13 A elle 14 2 2 FIM Distribution BO rss li 14 2 9 Interconnect Brad idas 14 A A A O A 15 4 Sher Alarni Panel A pi 16 cs uy ra Lahde A ON 16 RSD SP cd es A i alt el rece ee lo lol 16 4 3 DSAP Block Diagrani acacia
35. t full speed or 180W at low speed 10W 3W PEM 1W Designed to meet 6 6 Designed to meet e 1EC60950 1 First Edition e EN 60950 1 First Edition e UL 60950 1 First Edition e CSA 22 2 No 60950 1 03 First Edition Designed to meet EN55011 CISPR22 Class A Designed to meet e Ambient temperature normal operating 5 C 45 C 41 F to 113 F e Ambient temperature transient operating 5 C 55 C 41 F to 131 F e Humidity 5 85 no condensation FlexChassis ATCA 12U 14 Slot DC User Manual
36. tion 1 RTS Out Request To Send 2 DTR Out Data Terminal Ready 3 TxD Out Transmit Data 4 GND REF Logic Ground 5 GND REF Logic Ground 6 RxD In Receive Data 7 DSR In Data Set Ready 8 CTS In Clear To Send Table 9 RS 232 Serial Connector EIA TIA Pin assignment RS 232 RJ45 Pin Signal Type Description 1 DSR In Data Set Ready 2 CD In Carrier Detect 3 DTR Out Data Terminal Ready Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual 4 GND 5 RxD 6 TxD 7 CTS 8 RTS REF Logic Ground Receive Data Transmit Data Clear To Send Request To Send 4 12 SAP Console Cable for the Shelf Manger Serial Interface Figure 12 RJ45 to DB9 Serial Console Cable Cisco option default RJ45 male ONOnhWHND DB9 female 8 6 2 5 5 3 4 7 12706929 Figure 13 RJ45 to DB9 Serial Console Cable EIA TIA option Document CC08100 RJ45 male 1 2 3 4 5 6 7 8 DB9 female 12706930 The connectors are shown with the cables pointing away The serial console cable is not included with the Shelf FlexChassis ATCA 12U 14 Slot DC User Manual 5 Fan Trays Modules 5 1 Introduction The Shelf has upper Fan Tray Modules FTM Each FTM has four 92mm fans and the arrangement is based on the patented Pentair Electronic Packaging Serial Parallel Fan Scheme for maximum volume air flow even distribution and fault resilience 5 2 Functional Description The fans in the FTM are controlled as a gro
37. tray is first installed in the system the fans spin at full speed o The fan tray has redundant IPMB connections for better management communication reliability o The system is designed to run indefinitely with any single fan failure The circuitry on the controller board monitors the speed of each fan When one fan fails all other fans are increased to full speed The fan tray has sufficient cooling capacity to keep the chassis cooled with a single fan failure The hybrid serial parallel cooling scheme ensures that the airflow path within each slot is not substantially affected with a fan failure Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual 6 Power Entry Module PEM Hazardous voltage A Before working ensure that the power is removed from the power connection cables When the system is powered on do NOT touch the power terminals Warning Although there are fuses n the power entry circuit of the Shelf the power lines have to be protected on rack level with 40 A breakers The Shelf can be powered using a regular telecommunication power supply of 48 VDC 60 VDC with a voltage return The specified voltage range is from 40 5 VDC to 72 VDC The Shelf supports redundant power sources but the two sources should be independently powered 6 1 Introduction The Power Entry Modules PEMs are intelligent FRUs controlled by the Shelf Manager via IPMB Two pluggable redundant Power Entry Module
38. up via an IPMB based interface The IPM Sentry Shelf Manager performs management of the FTM The BMR AVR is used as the IPM Controller in the FTM implementation The FTM has an Injector Ejector handle that interfaces with a micro switch and signals the BMR AVR for hot swap The handle has a tool accessible fastener that locks the FTM securely into the Shelf The Shelf Managers monitor the FTM through the two independent bussed IPMB connections When the FTM is first inserted into the system the fans initially start at full speed and then decrease to 25 of full speed The circuitry on board the fan tray uses pulse width modulation to set the speed of all the fans Lower speeds reduce acoustics and increase the longevity of the fans The speed of each fan is monitored If the fan speed drops below or increases above the desired fan speed a system event log SEL entry is logged by the Shelf Manager The Shelf Manager can be configured to then generate alerts and set alarm conditions as necessary The FTM does not negotiate for power with the Shelf Manager and it does not start out at Power Level 0 as specified in the PICMG 3 0 power management mechanism This ensures that the fans start up immediately upon insertion 5 3 Construction The FTM is constructed of 060 aluminum with a chem film finish The FTM board is installed to the FTM and allows for easy access to the components on the board Optimization of the FTM has minimized the number
39. within the backplane Node Slot A slot supporting port connections to from Fabric Slot s A Node slot is intended to accept a Node Board PCB PEM Printed Circuit Board Power Entry Module PICMG RTC RTM PCI Industrial Computer Manufacturers Group Real Time Clock Rear Transition Module SAP SEL Shelf Alarm Panel System Event Log Shelf See Chassis ShMC Star Shelf Manager Carrier Board A backplane topology in which there is one or more dedicated channel connections between each node Slot and the Fabric Slots Unit of vertical pitch 1 U 1 75 inches 44 45 mm Zone 2 Zone 3 ATCA terminology for the data interconnect portion top of the backplane ATCA terminology for the open region above the backplane where front board and RTMs connect 1 7 Shelf Specification The Shelf is 12U high and 19 rack mountable The chassis is designed for easy access of any field replaceable units FRU The chassis and subrack comply with ATCA 3 0 section 2 0 mechanical requirements and the subrack support fourteen 8U x 280mm front plug boards and 8U x 70mm rear transition modules The Shelf implements the following features o 14 slot ATCA Backplane dual star Base Interface and bused IPMB interface supporting twelve node board slots and two hub slots o Mounting brackets for 19 racks o ESD Wrist Strap Terminals at front and rear o Two dedicated slots for a S
40. ys output 1 relays powered 0 3 Critical Alarm to telco relays output 1 relays powered 0 4 N C Pulled High 0 5 LED_MIN Minor alarm LED output 1 0On 0 6 LED_MAJ Major alarm LED output 1 0On 0 7 dn eee Critical alarm LED 14 On 1 0 Alarm Silence button input 0 push button pushed 1 1 Minor Clear input 0 voltage applied to input pins 1 2 Major Clear input 0 voltage applied to input pins 1 3 N C Pulled High 1 4 N C Pulled High 1 5 LED_USER3 output 1 On 1 6 LED_USER2 output 1 On 1 7 LED_USER1 output 1 On 4 11 RS 232 Serial Console Interface on Shelf Alarm Panel Document CC08100 FlexChassis ATCA 12U 14 Slot DC User Manual Figure 11 RS 232 Serial Console Interface on Shelf Alarm Display 12705811 The Shelf Alarm Panel provides a RS 232 serial console connector for the Shelf Manager 1 and Shelf Manager 2 The connector is a 8 pin RJ45 modular receptacle The DSAP provides two RJ45 connectors ini The ISAP provide just one connector for both Shelf Managers only the active Shelf Manager has access to the connector A full set of RS 232 signals including modem control is provided The serial interface is implemented on the ShMM 500 Hi The RS 232 Serial Console Interface is available with EIA TIA or Cisco pin assignment The default configuration is Cisco pinout with 115200 baud no parity 8 data bits 1 stop bit Table 8 RS 232 Serial Connector Cisco Pin assignment default RJ45 Pin SA Type Descrip

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