PC Specialist's Handbook ErgoPro e-, x- and s- Series
First Edition, Release 4 - June 1998 Page 65
Network
The Ethernet Local Area Network interface is build around an AMD PCnet PCI-bus (master device) controller
(AMD Am79C970). which is a single chip Ethernet Controller.
The Ethernet interface can be connected either to a Twisted Pair (TP) cable through an 8 pin RJ45 connector or
to a BNC connector. The used interface is automatically detected.
The receive and transmit buffers are kept in the in-build fifos of the AMD chip, both of the buffers can store 128
bytes.
The Ethernet interface also includes Remote Boot options. The Remote Boot codes, when activated, are
integrated into the system BIOS, but stored in a separate FLASHRAM.
Some of the parameters such as Network address are stored in a 16 * 64-bit EPROM.
The IRQ of the LAN interface can be disabled from the Resident SETUP Utility, by setting the IRQ to none, in the
Admin/PCI/Configure menu
Peripheral Component Interconnect (PCI interface)
Connects the CPU and PCI bus in asynchronous mode and runs the PCI bus always at the half speed of the
CPU bus (external frequency of the CPU). This means that if the external clock of the CPU is 50MHz (75MHz
internal), the PCI bus is running at 25MHz. The hardware and the BIOS are compliant to the version 2.0 of the
PCI specification and has support for four PCI master devices
Instant on
This function is controlled by the COP912CH single chip processor, which is powered by the +5V stand-by
voltage, this means that the COP is powered always when mains power cable is connected to the system unit,
even if the system is switched off. The COP is controlling the on/off functions of the power supply, also the
suspend to disk function is handled by the COP.
Note, the units with instant on-function will be automatically powered on every time when mains power is
connected to the system unit.
LED board
The LED board has three indicators that are located on the front panel, from top to bottom:
POWER (Green) Illuminated when the system is switched ON.
HDD (Green) Illuminated during network (when ICL Ethernet PCI module
is in use) and HDD activity.
KEYBOARD LOCK (Yellow) Illuminated when the keyboard lock is activated.
the keyboard lock may be activated either manually or automatically.
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