Meiko Computing Surface CS-2, Manual

Page: 42 / 52

32
S1002–10M128.02
4
The green LED flashes at a slow steady rate (once per second) when operating
normally. A quicker flash rate (2
×
normal) indicates that the SPARC processor is
not responding; a very quick flash rate (3
×
normal) indicates that the H8 proces-
sor on the module controller is not responding.
Each processor board within a processor module controls a 4
×
4 matrix of red
LEDs on the module’s front panel. The MK403 displays a random pattern on
these when running the Boot ROM. When Solaris has been booted a circulating
pattern is displayed. The pattern can be changed by user programs.