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Specifications CBI/CGI Technical Reference
Chassis Plans1-10
The LM80 also monitors an external chassis intrusion switch via the system hardware
monitor connector (P18).
A general purpose output (GPO) is also provided at the system hardware monitor
connector. This signal can be used to provide a user-defined function.
The following system voltages are monitored by the LM80:
• -12 volts
• 3.3 volts provided by the on-board voltage regulator for components on the
SBC
• 3.3 volts backplane power used by the option slots
• +5 volts
• +12 volts
• VCC_CORE, voltage provided by on-board VRM
• 1.5 volt, VTT voltage used by processor's GTL+ bus
10/100B
ASE-T
E
THERNET
I
NTERFACE (NOT
AVAILABLE ON
BASIC
MODELS)
The PCI Ethernet interface is implemented using an Intel 82559 and operates in
10Base-T and 100Base-TX Fast Ethernet modes. The interface is compliant with
IEEE 802.3 and PCI Local Bus 2.1 Specifications.
The main components of the interface are:
• Intel 82559 for 10/100-Mb/s media access control (MAC) with SYM, a
serial ROM port and a PCI Bus Master interface
• Serial ROM for storing the Ethernet address and the interface configuration
and control data
• Integrated RJ-45/Magnetics module connector on the SBC's I/O bracket for
direct connection to the network. The connector requires a category 5
(CAT5) unshielded twisted-pair (UTP) 2-pair cable for a 100-Mb/s network
connection or a category 3 (CAT3) or higher UTP 2-pair cable for a 10-Mb/s
network connection.
• Link status and activity LEDs on the I/O bracket for status indication (See
Ethernet LEDs and Connector later in this section.)
Software drivers are supplied for most popular operating systems.
PCI U
LTRA WIDE
SCSI I
NTERFACE
(NOT AVAILABLE
ON BASIC
MODELS)
The SCSI interface is a PCI Bus Master device which supports Ultra Wide SCSI data
transfer up to 40MB per second and bursts data to the host at full PCI speeds. Active
termination is provided with terminator voltage protected by self-resetting fuses. A
jumper is provided to disable the termination. The SCSI controller is an Adaptec
AIC-7880. Software drivers are available for most popular operating systems.
The Adaptec SCSISelect Configuration Utility allows you to view and/or change the
default configuration settings for the Ultra Wide SCSI adapter. This utility is described
in Appendix C - SCSISelect Configuration Utility.