Moog Focal 903, Руководство пользователя

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903-0628-00 Rev. 1 Model 903-HD User's Guide – FMB-X-2.5
Focal Technologies Corp. Page 4-11
Figure 4-7: VIB-X Plan View
Fuses on the rails from the backplane provide over-current protection near the 96-pin DIN 41612 connector at
the back of the card, per Figure 4-7. Fuse F1 is a 3A fuse on the +5 V supply rail and fuse F2 is a 1A fuse on
the -12 V rail, which is used to generate -5 V on the board. These fuses are soldered in place and are not
intended to be field replaceable, as any over-current fault sufficient to blow a fuse can potentially damage the
VIB-X card. Cards with blown backplane fuses should be returned to the factory for assessment.
The sync status of each video channel is represented by the sync LEDs on the front panel of the
corresponding FMB-X-2.5 module. Furthermore, for 903 systems that have both the FMB-X-2.5 and
backplane -X cards, the diagnostics software at the surface can monitor the status of the remote VIB-X card,
including card assembly information, such as serial number. A black and white bar test pattern is also
available on the VIB-X at either the remote or the console through the diagnostic software (command mode).
This test pattern is generated in the FPGA and at the remote end, this test pattern can be output at the front
panel as well as to the backplane, and at the console end the test pattern can be only output to the front
panel. Refer to FMB-X-2.5 diagnostics manual (P/N 903-0622-00) for more details.
Note that VIB-X cards do not support “non-video” signals on channel 4, as with older VIB-TX and
VIB-RX cards. Typically the “non-video” signals were audio or special high speed sonar signals,
which are now handled by other card types. Please consult the factory for any non-standard video
signals or switched video configurations.