IOP ignores GPS timing receiver status info
An IOP model can obtain a timestamp from a GPS time receiver (e.g. Spectracom card) on startup. It also reads a status bit corresponding to whether the receiver is locked to the satellites or not. But this bit apparently goes unused and unreported anywhere.
For troubleshooting purposes, it would be helpful if the IOP would either refuse to start, or report an error somewhere when its GPS time source is not locked. It would also be helpful to compare this timestamp to the system clock, and report if there's a discrepancy.