Kontron AT8404 - Manual (Page 41)

Hardware Description
28 AT8404 User Guide
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Gigabit Ethernet
Port 0 and ports 8 to 11 of each AMC are connected to the Ethernet switch. The Ethernet switch supports
1000BASE-BX Gigabit Ethernet.
Storage
Ports 2 and 3 of the AMC slots are reserved for storage connections to other AMC bays or the RTM (see section
3.1.2. Storage Interconnect).
PCI Express
Bays B1 and B3 and bays B2 and B4 implement a x4 direct connection on ports 4 to 7.
Automatic Protection Switching
Port 12 on each AMC bay is used as a 2.5 Gbps direct interconnect to the neighbouring Carrier Board via the
update channel for line card applications.
Interconnects to RTM
Each AMC Bay has seven generic interconnects to the RTM Zone 3 (ports 13 to 20).
3.1.7 IPMI
The AT8404 supports an intelligent hardware management system based on the Intelligent Platform Manage-
ment Interface (IPMI) Specification 1.5. It provides the ability to manage the power, cooling and intercon-
nect needs of intelligent devices, to monitor events and to log events to a central repository.
The main building blocks of the IPMI architecture of the AT8404 are:
• IPMC Intelligent Platform Management Controller
• FPGA (Field Programmable Gate Array)
3.1.7.1 IPMC
The IPMC controls all hotswap and E-Keying processes required by ATCA. It activates the board power supply
and enables communication with the AMC card and the RTM. The IPMC manages the Ethernet switch E-Keying
and the baseboard ATCA feature. The controller is connected to the ATCA shelf manager via IPMB bus on the
backplane.
All voltages and currents on the base board are monitored by the IPMC, including the management and AMC
supply. Six temperature sensors on the board make sure that thermal conditions are met. Following is a list
of the temperature sensors and their positions. For information on how to obtain sensor values and thresh-
olds, refer to the AT8404 CLI Reference Manual.
Table 3-12: Temperature Sensors
Temperature Sensor Position
Temp PPC Inlet Lower board edge, rear third, near Unit Computer
Temp PPC Outlet Near Unit Computer
Temp AMC Inlet Lower board edge, middle of AMC area
Temp AMC Outlet Upper board edge, middle of AMC area
Temp PCB Outlet Upper board edge, rear third
Temp BCM Outlet Near GbE switch