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CMU-212 Cabinet Monitor Unit
Operations Manual
For an FYA channel pair the fault configuration parameters are to be applied to the
Primary channel with three inputs, Ra-Ya-fYa. The fault configuration parameters
programmed for the Sparse channel of the FYA pair with only one input, Ga, only affects
the sparse channel and not the Primary channel, and should be used only when the RY
INPUT Enable option is Enabled for that channel.
2.16.2.1 CONFLICT
The CMU-212 will verify that no conflicting channels to the solid Yellow arrow channel
(clearance) are active as determined by the Program Card compatibility programming of
the solid Yellow arrow channel of the pair except during the following sequences:
2.16.2.1.1 PROTECTED YELLOW CHANGE INTERVAL CONFLICT
During the Yellow change interval of the Protected Turn channel (Green arrow), the CMU-
212 will verify that no conflicting channels to the solid Yellow arrow channel (clearance) are
active as determined by the Permissive compatibility programming of the Protected Turn
channel (Green arrow) of the pair.
2.16.2.1.2 PERMISSIVE YELLOW CHANGE INTERVAL CONFLICT
During the Yellow change interval of the Permissive Turn channel (flashing Yellow arrow),
the CMU-212 will verify that no conflicting channels to the solid Yellow arrow channel
(clearance) are active as determined by the Permissive compatibility programming of the
Permissive Turn channel (flashing Yellow arrow).
2.16.2.2 RED FAIL
A Red Fail fault will occur if the solid Red Arrow AND solid Yellow Arrow AND flashing
Yellow Arrow AND solid Green Arrow all remain inactive for the Red Fail fault response
time. The fault status will be displayed for both channels of the FYA channel pair.
If the Red Fail function is enabled and the RY Input option is Enabled for the sparse
channel (Ga), then a Red Fail fault will occur if the Red AND Yellow AND Green all remain
inactive on the sparse channel for the Red Fail fault response time. The fault status will be
displayed for the sparse channel of the FYA pair.
Eberle Design Inc.
Page 12
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