CTI Products AIB AstroTAC Interface - Manual (Page 16)

AIB Hardware Reference Special Features
CTI Products, Inc.
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8. Special Features
The AIB module was designed with specific features/functions that help make the
system easier to use and maintain.
8.1 Link Failure Reporting
During normal operation, the AIB and the ASTRO-TAC™ Comparator
communicate by exchanging data and status information. If the communications
between the two devices stop (the comparator is turned off or the communications
cable is removed), the AIB will generate a special message onto the MCN
network, telling all User Interface Modules assigned to that AIB that the
comparator communication link has failed.
Some User Interface Modules have the ability to report this link failure. How this
link failure is shown depends on the type of User Interface Module being used.
Refer to the User Interface Module’s hardware reference manual to find out if it
supports this link failure reporting.