Honeywell HPM Service page 150

2 Equipment Description
2.27 EUCN Cable System
A
No UCN coaxial
SIL
cable problems
A
If UCN cable A
SIL
on an ENB node
has a problem
*
A
If UCN cable B
SIL
on an ENB node
has a problem
A
If both UCN cable
SIL
A and B on an
ENB node have a
problem
[1]
*
Primary fails,
Secondary takes
over as the
primary
[1]
Note: The A SIL, B SIL, A NSY, and B NSY indications only appear for an instant and then shows
blank due to node failure.
Note: If any SIL or NSY bits are set, then the corresponding cables are backlit on the UCN Status
Display, if the UCN CABLE STATUS target is chosen.
150
B A B
SIL NSY NSY
LCN: OK/BACKUP
B A B
SIL NSY NSY
LCN: OK/BACKUP
B A B
SIL NSY NSY
LCN: OK/BACKUP
*
B A B
SIL NSY NSY
[1]
*
FAIL/WARNING
HPM High-Performance Process Manager Service
Honeywell
OK/OK
UCN:
OK/BACKUP
A->A
OK
FAIL/OK
UCN:
OK/BACKUP
A->A
OK
FAIL/OK
UCN:
OK/BACKUP
A->A
OK
OK/OK
UCN:
OK/OFFNET
LCN:
A->A
OK
FTE composite status
A->B B->A
OK OK
FTE composite status
A->B B->A
OK OK
FTE composite status
A->B B->A
OK OK
FTE composite status
A->B B->A
OK OK
December 2020
B->B
OK
B->B
OK
B->B
OK
B->B
OK
R688