Ipmc Circuitry; Table 4-1 Pem Ipmb Addresses - SMART Embedded Computing AXP1440-C07 Installation And Use Manual

Power is introduced to the PEM using a DC power cable attached to the terminal blocks on
the front of the module (power input cable and return cable). The terminal block consists of
a dual stud connection which prevents the power cables from rotating and provides secure
contacts for the cable lug. There is a plastic cover that protects the cable connections.
The DC power inputs must only be attached to approved Telephone Network
Voltage (TNV) or Safety Extra Low Voltage (SELV) branch circuits. Branch circuits
must comply with all requirements called for in these safety standards: IEC 60950,
EN 60950, CAN/CSA-C22.2 No. 60950. Attaching inputs to non-TNV/SELV approved
power sources will cause the system to fail compliance with safety regulations.
4.5.2

IPMC Circuitry

Each PEM is capable of monitoring voltage and circuit breaker status. The PEMs are
loaded with the AdvancedTCA IPMC firmware. Preprogrammed FRU and Sensor Data
Record (SDR) information reside on the PEM and is accessible from the SAM1620-D
through the IPMB ports of the PEM. In addition, the IPMC monitoring functions include
digital inputs to detect circuit breaker trips, voltage sensors to detect backplane voltages,
current sensors to detect current to the backplane, and on-board circuitry to detect failures
on the PEM. The PEMs are managed by the Sentry Shelf Management software. Refer to
the Centellis 4440/4620 Control via IPMI Programmer's Reference guide listed in
for more information.
A
Table 4-1
Description
PEM A
PEM B
Figure 2-3 on page 68
backplane, FTMs, and SAMs.
AXP1440-C07 Installation and Use (6806800V18A)
PEM IPMB Addresses
provides a conceptual view of the connections between the PEMs,
AXP1440-C07 Operations
NOTICE
IPMB Address
0x66
0x68
Appendix
91