Cobalt Digital COMPASS 9414 4 In _ 4 Out Fiber-to-BNC Receiver _ Crosspoint Card - Manual (Page 37)

9400S-OM (V1.1) 9400-SERIES PRODUCT MANUAL 3-11
Operating Instructions
Troubleshooting
Troubleshooting
This section provides general troubleshooting information and specific
symptom/corrective action for the 9400-series card and its remote control
interface. The 9400-series card requires no periodic maintenance in its normal
operation; if any error indication (as described in this section) occurs, use this
section to correct the condition.
Basic Troubleshooting Checks
Failures of a general nature (affecting many cards and/or functions
simultaneously), or gross inoperability errors are best addressed first by
performing basic checks before proceeding further. Table 3-3 provides basic
system checks that typically locate the source of most general problems.
9400 Signal Processing Error Troubleshooting
Table 3-4 provides 9400-series processing troubleshooting information. If the
9400-series card exhibits any of the symptoms listed in Table 3-4, follow the
troubleshooting instructions provided.
In the majority of cases, most errors are caused by simple errors where the
9400-series is not appropriately set for the type of signal being received by
the card.
Table 3-3 Basic Troubleshooting Checks
Item Checks
Verify power presence and
characteristics On both the frame Network Controller Card and the card, in all cases when
power is being properly supplied there is always at least one indicator
illuminated. Any card showing no illuminated indicators should be cause for
concern.
Check Cable connection
secureness and connecting
points Make certain all cable connections are fully secure (including coaxial cable
attachment to cable ferrules on BNC connectors). Also, make certain all
connecting points are as intended. Make certain the selected connecting
points correlate to the intended card inputs and/or outputs. Cabling mistakes
are especially easy to make when working with large I/O modules.
Card seating within slots Make certain all cards are properly seated within its frame slot. (It is best to
assure proper seating by ejecting the card and reseating it again.)
Check status indicators and
displays On DashBoard™, red indications typically signify an error condition. If a status
indicator signifies an error, proceed to the following tables in this section for
further action.
Troubleshoot by
substitution All cards within the frame can be hot-swapped, replacing a suspect card or
module with a known-good item.