Technical data

2-10 System Controls

Table 2-1 shows the codes displayed by the LEDs during normal Domain/OS opera-

tion. Refer to Chapter 4 for a description of the LED codes displayed during power-up

diagnostics.

Table 2-1. LED Codes Displayed During Normal Domain/OS Operation

LED Display

(A through D Flashing) Message

Operating System Running

Disk Access In Progress

Network Receive In Progress

Network Transmit In Progress

P = Power-On Indicator

= LED On

S = Service Mode Indicator

On = SERVICE Mode

Off = NORMAL Mode

Note that the “Network Receive In Progress” and “Network Transmit In Progress”

codes can ﬂash so rapidly that they appear as a steady (not ﬂashing) display.

P A B C D E F G H S