System Overview 1-13
Peripheral Controller
The advanced integrated peripheral controller supports two serial ports, one parallel
port, diskette drive, PS/2-compatible keyboard and mouse, and integrated Real Time
Clock (RTC). The system provides the connector interface for each port.
Serial Ports
Both serial ports are relocatable. Each serial port can be set to one of four different
COM ports and can be enabled separately. When disabled, serial port interrupts are
available to add-in boards.
Parallel Port
One IEEE 1284-compatible 25-pin bidirectional EPP (supporting levels 1.7 and 1.9)
parallel port is provided. BIOS programming enables the parallel port and determines
the port address and interrupt. When disabled, the interrupt is available to add-in
boards.
External Device Connectors
The external I/O connectors provide support for a PS/2 compatible mouse and a
keyboard, connectors for VGA monitor, 2 serial port connectors, a parallel port
connector and two USB connections.
System Board Management Controller (BMC)
Server management is concentrated in the System Board Management Controller
(BMC). The BMC and associated circuitry are powered from a 5Vdc standby voltage,
which remains active when system power is switched off, but the ac power source is
still on and connected.
The BMC supports the Emergency Management Port (EMP) Console, which allows
remote server management via a modem or direct connection to a manager system.
Events monitored by the manager system include over-temperature and over-voltage
conditions, fan failure, or chassis intrusion.
Information on the Emergency Management Port (EMP) Console may be found in
Appendix C of this User’s Guide.