Specifications

Table 2-1. Connectors, Controls, and Indicator Lights on the System Unit
Item Function
Option slots 0, 1, and 2 Points at which video, SCSI, and network
options can connect to option modules in
the system unit. In Figure 2-1, option slot
0 contains a video connector, the point at
which a video cable connects the monitor to
the system unit.
Cover-release screw A captive screw that allows the cover to be
removed from the system unit.
Monitor-to-system-unit power
connector
The point at which power can pass from the
system unit to the monitor.
On/off switch Turns the system unit on and off. Pressing
the 1 turns the system unit on. Pressing
the 0 turns it off.
System unit power connector The point at which power from the power
source reaches the system unit.
Keyboard-mouse connector The point at which the keyboard-mouse
cable connects the keyboard and mouse or
tablet to the system unit.
Communications connectors The points at which communication devices,
such as modems and printers, can connect
to the system unit.
Reset button Resets the system hardware.
Diagnostic indicator lights When there is no display on the monitor,
these lights indicate where system failures
have occurred.
ThinWire Ethernet connector The point at which ThinWire Ethernet
connects to the system unit.
SCSI connector The point at which up to seven external
SCSI storage devices can connect to the
system unit.
System Unit, Monitor, Keyboard, and Mouse or Tablet 2–3