Cobalt Digital COMPASS 9121 3G_HD_SD-SDI_ASI Redundancy Switch - Manual (Page 27)

9121-OM (V1.2) 9121 PRODUCT MANUAL 3-7
Operating Instructions
Troubleshooting
Table 3-2 Basic Troubleshooting Checks
Item Checks
Verify power presence and
characteristics On both the frame Network Controller Card and the 9121, 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.
Table 3-3 Troubleshooting Processing Errors by Symptom
Symptom Error/Condition Corrective Action
DashBoard™ remote control
does not change card settings. Remote control disabled on
card Check card edge Mode Select switch and make
certain set for Card Edge Control>Disabled
(see 9121 Card Edge Control (p. 3-4)).
DashBoard™ remote control is locked out if
card edge control is enabled.
• DashBoard™ indicates
Unlocked for input.
• Card edge Input Format LEDs
show continuous cycling.
• No video input present • Make certain intended video source is
connected to appropriate card video input.
Make certain BNC cable connections
between frame Rear I/O Module for the card
and signal source are OK.
• Signal is not SMTE 425,
292M, or 259
• The card can typically pass non-SDI signals,
however, status will indicate Unlocked.
Failover does not function as
expected. Signal not supported by card
failover validity check Only signal formats recognized by the card
validity checks should use the failover mode.
(See Technical Specifications (p. 1-6))
Card non-relay outputs will not
pass selected input. Reclocking enabled for
non-SDI signal Reclocking should be disabled if non-relay
outputs are to carry any non-SDI signal. (See
Technical Specifications (p. 1-6))
Card Input Status displays show
unlocked when receiving a valid
SDI signal Relay output RLY A/B OUT
unterminated Card relay output RLY A/B OUT must be
terminated into 75
Ω impedance via connection
to downstream equipment or termination for
card to properly display input status.