CMUip-2212 Cabinet Monitor Unit
Operations Manual
Eberle Design Inc.
Page 11
2.15.1 RECURRENT PULSE DETECTION DISABLE
The Recurrent Pulse Detection function can be disabled by soldering a 0-ohm jumper into
position SEL1 on the CMUip-2212 printed circuit board. When the jumper is inserted,
Recurrent Pulse Detection is disabled. When the jumper is removed, Recurrent Pulse
Detection is enabled.
2.16 FLASHING YELLOW ARROW (FYA) PROTECTED-PERMISSIVE MONITORING
The CMUip-2212 is designed to monitor an intersection with up to eight approaches using
the four section Flashing Yellow Arrow (FYA) movement outlined by the NCHRP Research
Project 3-54 on Protected/Permissive signal displays with Flashing Yellow Arrows, and
complies with all requirements of
NEMA Standard TS-2 Amendment 4-2012 Flashing
Yellow Arrow
.
For monitoring purposes an FYA approach is logically defined as a four input “logical
channel” consisting of the solid Red Arrow, solid Yellow Arrow, flashing Yellow Arrow
(permissive), and solid Green Arrow (protected). A Flashing Yellow Arrow approach is
typically monitored using two load switches and two physical channels of the CMU-2212.
2.16.1 FYA CONFIGURATION
The following three clauses define the nomenclature used in this Section 2.16.1, as
described in
NEMA Standard TS2-2016 Flashing Yellow Arrow
.
2.16.1.1 PROTECTED TURN CHANNEL
The Protected Turn Channel of the FYA channel pair is composed of the solid
Green arrow (Ga) indication of the FYA Signal Output Group.
2.16.1.2 PERMISSIVE TURN CHANNEL
The Permissive Turn Channel of the FYA channel pair is composed of the solid Red
arrow (Ra), solid Yellow arrow (Ya), and the flashing Yellow arrow (fYa) indications
of the FYA Signal Output Group. The flashing Yellow arrow (fYa) indication will be
displayed as the Green input of the Permissive Turn Channel.
2.16.1.3 OPPOSING THROUGH CHANNEL
An Opposing Through channel is also associated with the FYA channel pair. The Opposing
Through channel is the channel that conflicts with the FYA Protected Turn Channel and is
permissive with the Permissive Turn Channel (flashing Yellow arrow).
2.16.2 CONFIGURING THE CMUIP-2212 FAULT PARAMETERS FOR FYA
The CMUip-2212 built-in Setup Wizard in the
MonitorKey
software will automatically
configure the fault configuration parameters for Red Fail, Dual Indication, Field Check, and
Minimum Y+R Clearance.
The Flashing Yellow Arrow configuration settings should be
applied before running the MonitorKey Setup Wizard
. The MonitorKey form for setting
the FYA parameters is shown below:
- NOTE -
The ATCC standard CMUip-2212 is defined to support six FYA approaches.
The CMUip-2212 firmware release vXX20 or higher must be installed in the
CMU to provide support for eight FYA approaches. ECcom and MonitorKey
software must be updated to v4.5+ and v2.6+ respectively. Consult the EDI
factory for further details.
