Master-Only I2C Bus; Shelf Fru Seeprom; Sam Leds - Emerson AXP640-DC2 Installation & Use Manual

7.4.3 Master-Only I
The SAM provides a number of I
mezzanine. The master-only I
EEPROM devices. Additional I
following functions:
System hardware monitoring and control
7.4.4

Shelf FRU SEEPROM

The SAM provides access to the SEEPROMS on the backplane through the master-only I2C.
Information stored in the SEEPROMS contains PICMG defined Shelf FRU data records that
enable the SAM to self configure for the AXP640 shelf.
7.4.5

SAM LEDs

The SAM provides the LEDs listed in the following table. More detail on the LEDs is provided in
the following sections. Also refer to
and to Figure 2-1 on page 28
Table 7-2 SAM LEDs
LED
Telco
In Service
Out of Service
Hot Swap
AXP640 Installation and Use (6806800M24E)
2
C Bus
2
C devices using the master-only I
2
C bus is used internally on the mezzanine for the AC PSU and
2
C devices connected to the bus on the SAM are used for the
Figure 7-2 on page 143
for the ADP teleco LED locations.
Type
Critical alarm (CRIT)
Major alarm (MAJ)
Minor alarm (MIN)
In Service (IS)
Out of Service (OOS)
Hot swap ready (HS)
Shelf Management Alarm Module
2
C bus of the shelf manager
for SAM face plate LED locations
Location
SAM face plate
SAM face plate
SAM face plate
SAM face plate
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