Fru Serial Eeprom; Temperature Sensors; Leds; Table 4-1 Temperature Sensor Thresholds - SMART Embedded Computing RTM-ATCA-F140 Series Installation & Use Manual

Functional Description
4.2.1

FRU Serial EEPROM

The RTM-ATCA-F140 provides a 128Kb (16Kbyte) I
24LC128T-type device. The EEPROM resides at I
+3.3V management power and thus is available regardless of payload power.
This serial EEPROM is intended to hold FRU data and any additional parameters that are
required.
4.2.2

Temperature Sensors

The RTM-ATCA-F140 has provision for three temperature sensors that are located on the
primary side of the RTM close to the top, middle and bottom. These sensors are I
LM75-type devices.
The over-temperature outputs from the three sensors are connected to the RTM FPGA to
allow an interrupt to the service processor to be generated in the event of an over-
temperature condition.
Table 4-1
Sensor
Upper
Middle
Lower
2
The I C addresses for these devices are 0x90 (upper), 0x92 (middle) and 0x94 (lower).
4.2.3

LEDs

The RTM-ATCA-F140 provides four panel-visible LEDs that provide the standard ATCA
management LED functions:
Red - Out of Service

Green - In Service

Blue - Hot swap (initializing/shutting down)

Amber - Attention

54
Temperature Sensor Thresholds
Noncritical
Threshold/C
58
56
54
RTM-ATCA-F140 Series Installation and Use (6806800M97M)
2
C serial EEPROM. This is a
2
C address 0xA0. It is supplied with
Critical
Threshold/C
69
65
61
Functional Description
2
C-based
Nonrecoverable
Threshold/C
85
81
72