CTI Products RCD Standard - Remote Comparator Display - Manual (Page 11)

MCN Remote Comparator Display Theory of Operation
CTI Products, Inc.
68-10856-210
5
2. Theory of Operation
This section describes the operation of the MCN Remote Comparator Display
software in an MCN comparator display system.
2.1 Comparator Status
The Comparator I/O Module (such as an AIB or CIB) accepts the VOTE,
RECEIVE, DISABLE, and FAIL receiver status indicators from the comparator.
It sends status messages to the HIB or PCLTA. The HIB or PCLTA passes the
messages over the PCs serial port to the MCNRCD software. The MCNRCD
software controls the VOTE, RECEIVE, DISABLE, and FAIL status display for
each receiver on the screen.
2.2 Controlling the Comparator
The MCNRCD software monitors the mouse and/or keyboard for VOTE and
DISABLE commands. When a VOTE or DISABLE command is activated, the
MCNRCD software sends a FORCE VOTE or DISABLE command to the
Comparator I/O Module. The Comparator I/O Module will then generate the
proper FORCE VOTE or DISABLE/ENABLE signal to control the comparator.
2.3 Transmitter Status Monitoring and Control
To provide transmitter status monitoring and control, your MCN system must also
include CTI Product’s Transmitter Steering Audio Matrix (TSAM) device along
with the MCN TIB Module (TSAM Interface Module) (see reference 3).
The MCNRCD software can display transmitter status information along with the
corresponding receiver’s status information. You can simultaneously view the
receiver’s current status along with the current state of the corresponding
transmitter (whether it is selected or not).
The MCNRCD software can also force a particular transmitter to be the active
transmitter by FORCE VOTING the receiver associated with that transmitter.
MCNRCD will display a status of Tx/Vote for that receiver to indicate that it is
currently being FORCE VOTED and that the transmitter is active.