schroff Nvent 3U 2-slot ATCA Shelf User manual

3U 2-slot ATCA Shelf
User‘s Manual
Product Numbers:
11990-704/-705/-706/-707
Doc-No: 63972-320_R1.2 March 2018

Impressum:
Schroff GmbH

Langenalber Str. 96 - 100
75334 Straubenhardt, Germany
The details in this manual have been carefully compiled and
checked - supported by certified Quality Management System
to EN ISO 9001/2000
The company cannot accept any liability for errors or misprints.
The company reserves the right to amendments of technical
specifications due to further development and improvement of
products.
Copyright2018
All rights and technical modifications reserved.
R1.0 March 2018 rebranded

11990-704/705/706/707 (2-Slot ATCA Shelf)
I R1.2, March 2018
Table of Contents
1 Safety .................................................................................................................................... 1
1.1 Safety Symbols used in this document ........................................................................... 1
1.2 General Safety Precautions................................................................................................ 1
1.3 References and Architecture Specifications................................................................... 2
1.4 Product Definition ................................................................................................................ 2
1.5 Terms and Acronyms.......................................................................................................... 3
1.6 Hardware Platform .............................................................................................................. 4
2 Shelf Front and Rear View................................................................................................. 5
3 ATCA Backplane ................................................................................................................. 6
3.1 Logical to Physical Slot Mapping...................................................................................... 6
3.2 Interfaces............................................................................................................................... 6
3.2.1 Fabric Interface .................................................................................................... 6
3.2.2 Synchronization Clock Interface ....................................................................... 6
3.2.3 Update Channel Interface................................................................................... 6
3.2.4 Intelligent Platform Management Interface.................................................... 6
3.2.5 Base Interface....................................................................................................... 7
3.3 Shelf FRU SEEPROM ........................................................................................................... 8
3.4 Logic Ground......................................................................................................................... 8
4 Air Filter................................................................................................................................. 9
4.1 Introduction........................................................................................................................... 9
5 Shelf Ground Connection ................................................................................................ 10
5.1 Specification for the Shelf Ground connection cable.................................................. 10
6 Shelf Alarm Panel (optional)........................................................................................... 11
6.1 SAP Front Panel.................................................................................................................. 11
7 Fan Trays............................................................................................................................ 12
7.1 IPM Controller and Fan Control....................................................................................... 13
7.2 Fan Tray Indicators............................................................................................................ 14
7.3 Fan Tray Signals................................................................................................................. 15
7.4 Fan Tray Connector Pin Assignment ............................................................................. 15
7.5 Fan Tray IPMB Addresses................................................................................................ 15
7.6 Front Board Air Distribution.............................................................................................. 16
7.7 Rear Board Air Distribution............................................................................................... 16
8 Power .................................................................................................................................. 17
8.1 AC PEM ................................................................................................................................ 17
8.1.1 AC PEM Power Distribution ............................................................................. 18
8.1.2 AC PEM Signals.................................................................................................. 19
8.1.3 AC PEM Indicators............................................................................................. 19
8.1.4 AC PEM Connector PIN Assignment ............................................................. 19
8.2 DC PEM ................................................................................................................................ 20

11990-704/705/706/707 (2-Slot ATCA Shelf)
II R1.2, March 2018
8.2.1 DC PEM Power Distribution ............................................................................. 21
8.2.2 DC PEM Signals.................................................................................................. 21
8.2.3 DC PEM Indicators............................................................................................. 22
8.2.4 Specification for the power connection cables............................................ 22
8.2.5 DC PEM Connector PIN Assignment ............................................................. 22
9 Shelf Management ........................................................................................................... 23
9.1 Shelf Managers................................................................................................................... 24
9.2 Introduction......................................................................................................................... 24
9.3 Front Panel Components.................................................................................................. 26
9.4 Hardware Address ............................................................................................................. 26
10 Technical Data................................................................................................................... 27
10.1 Accessories......................................................................................................................... 28
10.2 Shelf Dimensions ............................................................................................................... 29

11990-704/705/706/707 (2-Slot ATCA Shelf)
Safety 1 R1.2, March 2018
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
1.2 General Safety Precautions
• Service personnel must know the necessary electrical safety, wiring and connection prac-
tices for installing this equipment.
• Install this equipment only in compliance with local and national electrical codes.
• For additional information about this equipment, see the PICMG 3.0 
Specification (www.picmg.com).
Hazardous voltage!
This is the electrical hazard symbol. It indicates that there are dangerous voltages inside the
Shelf.
Caution!
This is the user caution symbol. It indicates a condition where 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.
Warning!
Voltages over 60 VDC can be present in this equipment. As defined in the PICMG 3.0 Speci-
fication, this equipment is intended to be accessed, to be installed and maintained by 
qualified and trained service personnel only.

11990-704/705/706/707 (2-Slot ATCA Shelf)
Safety 2 R1.2, March 2018
1.3 References and Architecture Specifications
• User Manual Shelf Manager ACB-V, order-no.: 63972-243
• User Manual Shelf Alarm Panel, order-no.: 63972-230
• Pigeon Point Systems IPM Sentry Shelf-External Interface Reference
(www.pigeonpoint.com)
•PICMG
®3.0 Revision 3.0 AdvancedTCA® Base Specification
(www.picmg.com)
1.4 Product Definition
The Schroff 11990-704/ -705/ -706/ -707 are 3 U / 2 Slot AdvancedTCA Shelves for Enterprise
or Development applications. Different versions are available:
•11990-704: Base Interface in a Hub/Hub configuration supporting ShMC cross connects,
dedicated slots for two Schroff ACB-V Shelf Managers and one Shelf Alarm Panel (SAP),
fans controlled by the Shelf Manager or through autonomous fan controller, DC Power
Entry Module.
•11990-705: Base Interface in a Hub/Hub configuration supporting ShMC cross connects,
dedicated slots for two Schroff ACB-V Shelf Managers and one Shelf Alarm Panel (SAP),
fans controlled by the Shelf Manager or through autonomous fan controller, AC Power
Entry Module.
•11990-706: Base Interface in a Node/Node configuration, dedicated slots for two Schroff
ACB-V Shelf Managers and one Shelf Alarm Panel (SAP), fans controlled by the Shelf Man-
ager or through autonomous fan controller, DC Power Entry Module.
•11990-707: Base Interface in a Node/Node configuration, dedicated slots for two Schroff
ACB-V Shelf Managers and one Shelf Alarm Panel (SAP), fans controlled by the Shelf Man-
ager or through autonomous fan controller, AC Power Entry Module.

11990-704/705/706/707 (2-Slot ATCA Shelf)
Safety 3 R1.2, March 2018
1.5 Terms and Acronyms
Table 1: Terms and Acronyms
Term Definition
ATCA Advanced Telecom Computing Architecture
Backplane Passive circuit board providing the connectors for the front boards. Power distribution, management and
auxiliary signal connections are supported
CDM Shelf FRU Data Module
ECN Engineering Change Notice
ESD Electrostatic Discharge
ETSI European Telecommunications Standards Institute
FRU Field Replaceable Unit
IPMB Intelligent Platform Management Bus
IPMC Intelligent Platform Management Controller
IPMI Intelligent Platform Management Interface
PCB Printed Circuit Board
PEM Power Entry Module
RTC Real Time Clock
RTM Rear Transition Module
Shelf Enclosure containing subrack, Backplane, boards, cooling devices, PEMs and Fan Trays
VRTN Voltage Return

11990-704/705/706/707 (2-Slot ATCA Shelf)
Safety 4 R1.2, March 2018
1.6 Hardware Platform
The Shelf is 3 U high and 19“ rack mountable. The chassis is designed for easy access of any
Field Replaceable Units (FRU).
• 2 slot ATCA Backplane with 15 x interconnected Fabric Interface, Base Interface in HUB/
HUB or NODE/NODE configuration, bused IPMB interface, supporting two 8 U ATCA hub
boards or node boards (depending on chassis/backplane type)
• Mounting brackets for 19“ racks
• ESD Wrist Strap Terminals at front and rear
• Two dedicated slots for a Schroff Shelf Manager based on Pigeon Point ShMM-500
• One dedicated slot for a Schroff Shelf Alarm Panel (SAP) that provides Telco Alarm inter-
face, Alarm Status LEDs and serial interface for the Shelf Manager
• Two Front pluggable Fan Trays with 5 high speed fans per tray
• Removable air filter that meets the requirements of the Telcordia GR-78-CORE specifica-
tion.
• Two rear pluggable AC- or DC-Power Entry Modules, the same interface in the subrack for
AC PEM and DC PEM.
• Front pluggable air inlet filter

11990-704/705/706/707 (2-Slot ATCA Shelf)
Shelf Front and Rear View 5 R1.2, March 2018
2 Shelf Front and Rear View
Figure 1: Shelf Front View
12713801
1Shelf Manager 1 8DC PEM B
2Fan Tray 1 9Shelf Ground Terminal
3Shelf Alarm Panel (SAP) 10 DC PEM A
4ESD Wrist Strap Terminal 11 ESD Wrist Strap Terminal
5Shelf Manager 2 12 AC PEM B
6Fan Tray 2 13 AC PEM A
7Air Filter

11990-704/705/706/707 (2-Slot ATCA Shelf)
ATCA Backplane 6 R1.2, March 2018
3 ATCA Backplane
The 2-slot ATCA monolithic Backplane is completely passive and is not A Field Replaceable
Unifield replaceable. The backplane provides 40Gb/s connectivity (4 lanes with 10Gb/s) and
2 ATCA slots in a:
•Hub/Hub configuration (Backplane 90183-490) or
•Node/Node configuration (Backplane 90183-491)
3.1 Logical to Physical Slot Mapping
The physical and logical slots are sequentially numbered from the lower to the upper slot.
Table 2: 2-Slot ATCA Backplane physical to logical slot mapping
3.2 Interfaces
3.2.1 Fabric Interface
All 15 Fabric Channels of slot 1 are routed to the respective Fabric Channels of slot 2.
3.2.2 Synchronization Clock Interface
6 pairs of synchronization clocks are bused between both ATCA slots and terminated at both
ends.
3.2.3 Update Channel Interface
The Update Channels are wired between both ATCA slots. The Update Channel can be used
to pass data or routing information between two redundant ATCA Boards.
3.2.4 Intelligent Platform Management Interface
The Shelf uses an Intelligent Platform Management Bus (IPMB) for management
communications among all ATCA Boards. The reliability of the IPMB is improved by the
addition of a second IPMB, with the two IPMBs referenced as IPMB-A and IPMB-B.
The IPMB-A and IPMB-B are routed between the ATCA slots.
Physical Slot # Logical Slot # HW-Address
(Hex)
IPMB-Address
(Hex)
Update
Channel
2 2 42 84
1 1 41 82