Cooling Budget; Ipmc Circuitry; Redundancy - Emerson AXP 1410 Installation And Use Manual

5.6.2

Cooling Budget

The shelf cooling is designed to operate with the following temperature rises across the shelf.
This allows cards with these dissipations to operate with commercial grade components, 70°C
ambient temperature typical.
Table 5-8 Cooling Budget
Ambient Temperature
25°C
40°C
55°C
The following guidelines can assist in determining the cause of the cooling failure. Also refer to
Environmental Requirements on page 39
temperature requirements during servicing. If a cooling failure occurs, the failure may be
caused by a failed fan or possibly a clogged filter. Check the filter first before replacing the FTM.
For further information of nonrecoverable temperature events, refer to
Information and Sensor Data Records, on page
5.6.3

IPMC Circuitry

Preprogrammed FRU and SDR information reside on the FTMs and is accessible from the SAM
2
via the I C bus. FRU information can be found in the
Records, on page
5.7

Redundancy

The following sections outline the interaction between redundant shelf managers and
redundant hub blades. This interaction is not described within the AdvancedTCA Specification
PICMG 3.0. The following sections also describe redundancy scenarios with redundant shelf
managers and system managers.
AXP 1410 Installation and Use (6806800H70F)
Temperature Rise
Delta T = 20° C
Delta T = 15° C
Delta T = 10° C
for important information regarding ambient
119.
Configuring and Operating the System
119.
Chapter 7, FRU Information and Sensor Data
Chapter 7, FRU
101