Technical data

Break/Enable Switch and LED—When the break/enable switch is in the up
position, you can halt the system by pressing the break key on the console
terminal keyboard. When the break/enable switch is in the up position, the
LED is on. When the break/enable switch is in the down position, the LED
is off.
Diagnostic LEDs—The diagnostic LEDs (status LED display) indicate
system and test status, and error conditions.
Standard Ethernet Port—This is the port to which standard Ethernet
connects to the system unit.
Network Select Switch—This switch selects either ThinWire™ or standard
Ethernet connection.
The system uses standard Ethernet when the network select switch is
in the left-hand position. The system uses ThinWire Ethernet when the
network select switch is in the right-hand position.
ThinWire Ethernet Port—This is the port to which ThinWire Ethernet
connects to the system unit.
System ac Power—The ac power cord plugs in here.
On/Off Switch—This switch turns the system unit on or off. To turn the
system on, set the on/off switch to the on (|) position. To turn the system
off, set the on/off switch to the off (O) position.
VAX 4000 Model 100A Hardware 1–3