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PRIMUS
R
660 Digital Weather Radar System
A28–1146–111
REV 2 2-3
System Configurations
The third system configuration is similar to the second except that a
Honeywell multifunction display (MFD) system is added. As before,
single or dual controllers can be used. When a single controller is used,
all displays show the same radar data. Dual controllers are used to
operate in the dual mode. The MFD can be slaved to either controller
to duplicate the data displayed on the selected side. Table 2–1 is a truth
table for dual control modes.
Left
Controller
Mode
Right
Controller
Mode
Left Side
(NOTE 1)
Right Side
(NOTE 1)
RTA
Mode
OFF OFF OFF OFF OFF
OFF Standby ”SLV”
Standby
Standby Standby
Standby OFF Standby ”SLV”
Standby
Standby
OFF ON ”SLV” ON ON ON
ON OFF ON ”SLV” ON ON
Standby ON Standby/
2
ON/2 ON
ON Standby ON/2 Standby/2 ON
ON ON ON/2 ON/2 ON
Standby Standby Standby Standby Standby
Dual Control Mode Truth Table
Table 2–1
NOTES: 1. ON is used to indicate any selected radar mode.
2. “SLV” means that displayed data is controlled by
opposite side controller. That is, the one controller that
is operating is controlling both sweeps of the antenna.
3. XXX/2 means that display is controlled by appropriate
on–side control for the antenna sweep direction
associated with that control. (/2 implies two controllers
are ON.)
4. In standby, the RTA is centered in azimuth with 15_
upward tilt. Video data is suppressed. The transmitter
is inhibited.
5. The MFD, if used, can repeat either left– or right–side
data, depending upon external switch selection.