hp workstations zx6000, hp server rx2600 - operation and maintenance guide

System Configuration
Management Card
Chapter 3
115
Management Card
The Management Card contains processor and I/O hardware that act as an autonomous
embedded device for controlling the system console, reset and power management
functions. The card connectors located on the back of the system provide SIO (Remote,
Console and UPS), VGA and one LAN connections.
Two major functions of the Management Card are remote and local manageability. The
Management card contains the management processor (MP), which monitors system
status and can control various aspects of the system operation, such as power, resets,
software/firmware upgrades and cooling. The Management Card’s manageability
hardware, when installed, operates on standby power. This means that it operates
independently of the on-off state of the rest of the system.
Overview of Management Card Components
The management processor uses the following external memory: 8 MB DRAM, 8 MB
Flash and 512 KB of NVRAM. A power monitor and watchdog timer reset the processor
if standby power is out of specification or the processor is inactive for a set amount of
time. The processor also uses a 25MHz clock.
The I/O and Memory Controller chip is connected to the Management card’s I/O bus
interface by rope number seven of the system bus. The Management card consists of the
following components:
• I/O Bus Interface
• VGA Controller with 16 Mb of DDR SDRAM for a video buffer
• Management Processor with:
— Three RS-232 Serial Ports
— Four I2C Ports
— 10/100BT LAN
— 16-bit GPIO Interface
• Management Processor DRAM, Flash Memory and Battery backed NVSRAM
• I2C battery backed Real Time Clock
• I2C Field Replaceable Unit EEPROM
• I2C 8K Serial EEPROM
• System Reset Logic
Management Card I/O Functionality
This section provides a brief description of the Management card’s I/O components.
System Serial Ports
There are three RS-232 ports that can be accessed through one three connector cable
(A6144-63001; Dongle) when this cable is connected to the DB25 connector located on
the backplane of the system. This cable provides for three DB9 connectors for terminal
device connections.