
Chapter 1 17
Introduction
System displays
1 26-2F 48-V error, NPSLR failure, PWRUP=0-9
1 30-39 48-V error, no supply failure, PWRUP=0-9
1 3A 48-V yo-yo error
1 3B MIB power failure (PB)
1 3C Clock failure
1 3D-3F Not used (3)
1 40-47 MB0-MB7 power failure
1 48-4F PB0L, PB1R, PB2L, PB3R, PB4L, PB5R, PB6L,
PB7R power failure
1 50-57 PB0R, PB1L, PB2R, PB3L, PB4R, PB5L, PB6R,
PB7L power failure (possibly switch R and L)
1 58-5B IOB (LF,LR,RF,RR) power failure
1 5C-61 Fan failure (UR,UM,UL,LR,LM,LL)
1 62 Ambient hot or ambient shutdown
1 63 Overtemp MIB
1 64-67 Overtemp quadrant (RL, RU, LL, LU)
1 68 Hard error
1 69 Ambient warm
1 6A-6F Not used (6)
1 70-73 DC supply maintenance (UL,UR,LL,LR)
1 74 AC circuit failure
1 75-7F Not used (11)
0 00-09 PWRUP state (00=System all powered up),
attention LED off
ATTN
bit
attentio
n light
bar
Description