490 TimeProvider 5000 User’s Guide 098-00028-000 Revision F – May, 2012
Appendix D Redundant IOC Cards
Output Performance During Switchover
Output Performance During Switchover
During switchover, the PTP outputs may be interrupted for a maximum of 10
seconds.
All continuous outputs, 10MHz, 1PPS, and E1, will not exhibit any loss of signal
during switchover, but may exhibit phase movement of up to 240 ns.
Fail This IOC has
experienced a serious
health condition and
is not operating
------------- Internal detection of
serious health condition
Active
Warmup
Active
Fail
Non-existent
Non
-existent
There is no IOC card
in this physical slot
See Initial
IOC State
in this
table
Insertion of IOC into this
physical slot
Active
Warmup
Active
Fail
Non-existent
Disabled The user has taken
action to soft-reboot
this IOC. This
condition will
temporarily exist while
the IOC prepares to
reboot. In this
transient state, the
IOC is not available to
become active.
See Initial
IOC State
in this
table
Completion of reboot
process and state decision
made in Initial IOC state.
Active
Warmup
Active
Fail
Non-existent
Table D-1. IOC States and Related Conditions (Continued)
IOC
STATE
Description Possible
Next
State
Conditions Required For
Next State Transition
Allowed State
of Other IOC