Each alarm card provides 16 individual normally closed volts free alarm inputs. The card communicates via the BBUS with the monitor output card.
Power is supplied either via the BBUS interface when the alarm card is mounted in the TX1500 subrack or via an external 9Vdc supply when mounted remotely.
This unit can be used in conjunction with the Tx1500 Matrix and Telemetry Controller System. Please see manual above.