schroff nvent 11850-029 User manual

1U 4-slot MTCA Shelf
User‘s Manual
Product Number:
11850-029
Doc-No: 63972-397_R1.1 July 2021

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2021
All rights and technical modifications reserved.
R1.0 November 2020 Initial release
R1.1 July 2021 Pinout eCLK Module corrected

11850-029
R1.1, July 2021 I
1 Safety ....................................................................................................................... 1
1.1 Safety Symbols used in this document.............................................................................. 1
1.2 General Safety Precautions ............................................................................................... 1
1.3 References and Architecture Specifications...................................................................... 1
2 Hardware Platform ................................................................................................... 2
2.1 Introduction ...................................................................................................................... 2
2.2 Front and Rear View.......................................................................................................... 3
2.3 ESD Wrist Strap Terminal .................................................................................................. 3
3 Backplane ................................................................................................................. 4
3.1 Backplane Topology .......................................................................................................... 4
3.2 Backplane Features ........................................................................................................... 5
3.3 Intelligent Platform Management Bus (IPMB) .................................................................. 5
3.3.1 IPMB-L................................................................................................................ 5
3.4 Power Management.......................................................................................................... 5
3.5 Third party clock module .................................................................................................. 6
4 Cooling ..................................................................................................................... 8
4.1 Air Filter............................................................................................................................. 8
4.2 Air filter swap .................................................................................................................... 8
4.3 Cooling .............................................................................................................................. 8
4.4 Power Supply..................................................................................................................... 9
5 eMCH (embedded MicroTCA Carrier Hub)............................................................... 10
5.1 Front Panel and LEDs....................................................................................................... 11
5.2 Command Line Interface (CLI)......................................................................................... 12
5.2.1 COM-Settings ................................................................................................... 12
5.3 Setting the fat pipe / extended fatpipe configurations................................................... 13
5.4 Firmware Update ............................................................................................................ 16
6 Technical Data ........................................................................................................ 17
6.1 Dimensions...................................................................................................................... 18

11850-029
II R1.1, July 2021

11850-029
R1.1, July 2021 Safety 1
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
• Use of this product in a manner not specified by the manufacturer may impair the safety protec-
tion of this equipment.
• Service personnel must know the necessary electrical safety, wiring and connection practices 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 MicroTCA 
Specification (www.picmg.com).
1.3 References and Architecture Specifications
•PICMG
®MTCA.0 Specification
(www.picmg.com)
•PICMG
®AMC® Base 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.

11850-029
2Hardware Platform R1.1, July 2021
2 Hardware Platform
2.1 Introduction
The 4-slot SCHROFF MicroTCA System is designed to accommodate two double Mid-size AMC
modules with RTM and 2 Single Mid-size AMCs for maximum computing power in minimal
space.
The integrated eMCH (Embedded MicroTCA Carrier Hub), power supply and cooling unit
allow easy servicing.
The SCHROFF MTCA.4 1U System contains power and cooling management mechanisms to
ensure a high degree of reliability.
The system components are linked directly to the existing network infrastructure using an
1 GbE switch connected to an 1 GbE uplink.
The System allows the integration of an optional 3rd party eCLK module that routes external
clock and trigger signals to the AMC slots.
Features:
• Shielded steel case
• 2 AMC Double Mid-size slots with RTM slots
• 2 AMC Single Mid-size slots
• MicroTCA Backplane
• EMCH (Embedded MicroTCA Carrier Hub) with GbE uplink and USB
• Power management controller on the backplane
• Built-in fan unit with MTCA Cooling Unit Management
• Side-to-side cooling with air filter
• Integrated 400 W AC Power Supply with wide range AC input and 12 V DC output.
• AC mains/line module with IEC 60320-C14 connector, integrated mains/line fuses and
mains switch
• 1 U height, 19” width, 373 mm depth
• Fat pipe /extended fat pipe lanes prepared for 40 GbE and PCIe Gen3
Note: To achive a maximum height of 1 U, the card cage is installed rotated by 180°. 
This must be considered when installing the AMC modules!

11850-029
R1.1, July 2021 Hardware Platform 3
2.2 Front and Rear View
Figure 1: Front and RearView
2.3 ESD Wrist Strap Terminal
The ESD Wrist Strap Terminal (4 mm banana jack) is located right to the card cage.
1eMCH 7AC input with Mains/line switch and fuse
2AMC slots 1 & 3 8PSU
3AMC slots 2 & 4 9Air filter
4ESD Wrist Strap Terminal 10 Fans rear section
5RTM slots 11 Fans front section
6Ground Terminal (Equipotential bonding) 12 Connector for 3rd party eCLK module
Danger of electrostatic discharge!
The Shelf contains static sensitive devices. To prevent static damage you must wear an ESD
wrist strap.

11850-029
4Backplane R1.1, July 2021
3 Backplane
3.1 Backplane Topology
AMC1
Single
Mid-Size
Fabric 1/A to AMC Port 0
Clocks - FCLKA AMC
(1:1 connection) on BPL
Clocks - TCLKB AMC
Clocks - TCLKA AMC
HotSwap
AMC Port 2 (SATA)
AMC Port 3 (SATA)
eMCH
AMC Port 4-5
Fabric 2/A to AMC Port 0
I²C
Carrier Number
EEPROM
FRU
AMC Port 8-9
AMC4
Double
Mid-Size
+RTM
IPMB_L
FAN_Tacho
FAN 1..8 FAN_Control
+12V Current
Sense
PPWR_2
PPWR_1
PPWR
PPWR_3 PPWR_4
PRST_1 PRST_2 PRST_3 PRST_4
EN_AMC1 EN_AMC2 EN_AMC3 EN_AMC4
EN_HSC_1
EN_HSC_2
IR_HotSwap 1
IR_HotSwap 2
MP_2
MP
MP_1
MP_3 MP_4
+3.3V
DC/DC
Converter
Port 12
Port 13
Port 14
AMC2
Double
Mid-Size
+ RTM
Port 15
Triggers, Clocks, Interlocks
Port [17:20]
2
AMC3
Single
Mid-Size
SATA-Headers (on eCLK)
M.2 S-ATA module (3.3V main power)
2
2
AMC Port 6-7
AMC Port 10-11 22
2
Configuration 1
AMC1 port 4-5 to AMC4 port 4-5;
AMC1 port 6-7 to AMC3 port 4-5;
AMC1 port 8-11 to AMC2 port 4-7;
AMC2 port 8-11 to AMC4 port 8-11;
AMC3 port 6-7 to AMC 4 port 6-7
Configuration 2
AMC1 port 4-5 to AMC4 port 4-5;
AMC1 port 6-7 to AMC4 port 6-7;
AMC1 port 8-11 to AMC2 port 4-7;
AMC2 port 8-11 to AMC4 port 8-11;
LVDS
FanOut
MLVDS
Tx
SMA
SMA
Trigger
Clock
Backplane
MP
PPWR
eCLK
2
1
2
1
2
1
2

11850-029
R1.1, July 2021 Backplane 5
3.2 Backplane Features
• GbE Links from MCH to all AMC Slots
• Direct S-ATA / SAS connections:
- AMC 1 <-> AMC 3: Port 2
- AMC 2 <-> AMC 4: Port 3
- AMC 1 & 3: Port 3 <-> SATA Headers on eCLK connector
• Fat pipe and extended fat pipe contains 4 PCIe Gen 3 x4 MUX’s that allows the user to
select through the eMCH two different fat pipe / extended fat pipe configurations
Configuration 1
- AMC1 port 4-5 to AMC4 port 4-5;
- AMC1 port 6-7 to AMC3 port 4-5;
- AMC1 port 8-11 to AMC2 port 4-7;
- AMC2 port 8-11 to AMC4 port 8-11;
- AMC3 port 6-7 to AMC 4 port 6-7
Configuration 2
- AMC1 port 4-5 to AMC4 port 4-5;
- AMC1 port 6-7 to AMC4 port 6-7;
- AMC1 port 8-11 to AMC2 port 4-7;
- AMC2 port 8-11 to AMC4 port 8-11
Note:
As 4 PCIe MUX’s are in the fat pipe / extended fat pipe backplane signal lines, only AMC
modules that support PCIe on fat pipe / extended fat pipe can be installed.
• FCLK for PCIe Gen3 clock generated on backplane
• eMCH / Backplane provide power and cooling unit functionality
3.3 Intelligent Platform Management Bus (IPMB)
MicroTCA uses an Intelligent Platform Management Bus (IPMB) for management
communications.
3.3.1 IPMB-L
Radial IPMB from eMCH to the AMCs.
3.4 Power Management
The integrated power management circuitry on the backplane provides 12 V payload power
distribution branches to the AMC Slots. It also generates the 3.3 V management power and
distributes it to all slots.
The current to the AMC slots is limited to:
•8A(PayloadPower)
• 250 mA (Management Power)

11850-029
6Backplane R1.1, July 2021
3.5 Third party clock module
The system provides a connector and mounting space for a third party clock module.
Clock Module Connector Pinout
Pin Signal name Direction Functionality/Description Notes
1 PS1_eClock# out Presence signal of the eClock module,
active low
2 GA0 / RFU passive Geographic Address 0 / Reserved for
3 IPMBL-SCL-eClock inout IPMB-L clock line Connect to the eMCH EEPROM FRU I2C line or future IPMBL
4 MP power Management Power 3V3
5 IPMBL-SDA-eClock inout IPMB-L data line Connect to the eMCH EEPROM FRU I2C line or future IPMBL
6 TxFA_eClock+ out Port 0 (MCH Fabric A) Ethernet link TX + Configuration Interface from backplane or intelligent eClock
connected to Common Options
7 GND Ground
8 TxFA_eClock- out Port 0 (MCH Fabric A) Ethernet link TX - Configuration Interface from backplane or intelligent eClock
connected to Common Options
9 RxFA_eClock+ in Port 0 (MCH Fabric A) Ethernet link RX + Configuration Interface from backplane or intelligent eClock
connected to Common Options
10 GND Ground
11 RxFA_eClock- in Port 0 (MCH Fabric A) Ethernet link RX - Configuration Interface from backplane or intelligent eClock
connected to Common Options
12 TxFB-1-eClock+ /
AMC1_TCLKD+
inout AMC1 port 2 to eClock TX + / TCLKD to
AMC1 +
Future use for SATA/NVME drive on eClock or intelligent eClock
connected to FatPipe
13 GND Ground
14 TxFB-1-eClock- /
AMC1_TCLKD-
inout AMC1 port 2 to eClock TX - / TCLKD to
AMC1 -
Future use for SATA/NVME drive on eClock or intelligent eClock
connected to FatPipe
15 RxFB-1-eClock+ /
AMC1_TCLKC+
inout AMC1 port 2 to eClock RX + / TCLKC to
AMC1 +
Future use for SATA/NVME drive on eClock or intelligent eClock
connected to FatPipe
16 TxFB-3-eClock+ /
AMC3_TCLKD+
inout AMC3 port 2 to eClock TX + / TCLKD to
AMC3 +
Future use for SATA/NVME drive on eClock or intelligent eClock
connected to FatPipe
17 RxFB-1-eClock- /
AMC1_TCLKC-
inout AMC1 port 2 to eClock RX - / TCLKC to
AMC1 -
Future use for SATA/NVME drive on eClock or intelligent eClock
connected to FatPipe
18 TxFB-3-eClock- /
AMC3_TCLKD-
inout AMC3 port 2 to eClock TX - / TCLKD to
AMC3 -
Future use for SATA/NVME drive on eClock or intelligent eClock
connected to FatPipe
19 RxFB-3-eClock+ /
AMC3_TCLKC+
inout AMC3 port 2 to eClock RX + / TCLKC to
AMC3 +
Future use for SATA/NVME drive on eClock or intelligent eClock
connected to FatPipe
20 GND Ground
21 RxFB-3-eClock- /
AMC3_TCLKC-
inout AMC3 port 2 to eClock RX - / TCLKC to
AMC3 -
Future use for SATA/NVME drive on eClock or intelligent eClock
connected to FatPipe
22 TxFB-2-eClock+ /
AMC2_TCLKD+
inout AMC2 port 2 to eClock TX + / TCLKD to
AMC2 +
Future use for SATA/NVME drive on eClock or intelligent eClock
connected to FatPipe
23 GND Ground
24 TxFB-2-eClock- /
AMC2_TCLKD-
inout AMC2 port 2 to eClock TX - / TCLKD to
AMC2 -
Future use for SATA/NVME drive on eClock or intelligent eClock
connected to FatPipe
25 RxFB-2-eClock+ /
AMC2_TCLKC+
inout AMC2 port 2 to eClock RX + / TCLKC to
AMC2 +
Future use for SATA/NVME drive on eClock or intelligent eClock
connected to FatPipe
26 TxFB-4-eClock+ /
AMC4_TCLKD+
inout AMC4 port 2 to eClock TX + / TCLKD to
AMC4 +
Future use for SATA/NVME drive on eClock or intelligent eClock
connected to FatPipe
27 RxFB-2-eClock- /
AMC2_TCLKC-
inout AMC2 port 2 to eClock RX - / TCLKC to
AMC2 -
Future use for SATA/NVME drive on eClock or intelligent eClock
connected to FatPipe
28 TxFB-4-eClock- /
AMC4_TCLKD-
inout AMC4 port 2 to eClock TX - / TCLKD to
AMC4 -
Future use for SATA/NVME drive on eClock or intelligent eClock
connected to FatPipe
29 RxFB-4-eClock+ /
AMC4_TCLKC+
inout AMC4 port 2 to eClock RX + / TCLKC to
AMC4 +
Future use for SATA/NVME drive on eClock or intelligent eClock
connected to FatPipe
30 GND Ground
31 RxFB-4-eClock- /
AMC4_TCLKC-
inout AMC4 port 2 to eClock RX - / TCLKC to
AMC4 -
Future use for SATA/NVME drive on eClock or intelligent eClock
connected to FatPipe
32 MLVDS-19-RX+ inout Bus LVDS Port 19 RX+