0	1	2	PWR OK	3	State
					DC not OK
					DC ok; +12V > 10V, +5V > 4V; System ok?
					System hung;halt switch on or power-up mode wrong.
					CPU, fault, or configuration error.
					Memory error; R1 points to bad location.
					Console SLU will not transmit.
					Waiting for response from operator.
					Load device fault.
					Secondary boot incorrect (location 0 not a NOP).
					DECnet waiting for response from host.
					DECnet; received done flag set.
					DECnet; message received.
					ROM bootstrap error.