2010 Construction and Material Specifications - Ohio Department of ...

733.03
k. Switches. Furnish completely wired switches that are required
for proper operation of specified equipment. Clearly and permanently label
switches as to function and setting position, and ensure that they are accessible
without the necessity of moving components.
(1) Signal Shutdown Switch. Furnish a cabinet with a signal
shutdown switch for turning off the power to the signals at the intersection.
Ensure that this switch only affects the power to the signals, and allows the
controller to continue in operation. Locate the switch in the panel behind the small
door-in-door (police door).
(2) Auto/Flash Switch. Furnish a cabinet with a flash control
switch for activating the flashing of vehicular signals in a preselected emergency
flash display. Ensure that the operation of the flash control switch causes a
flashing display even under conditions of controller unit malfunction or of its
removal from the cabinet. Ensure that the operation of the switch overrides any
operation commands from a local or remote time switch. Locate the switch in the
panel behind the small door-in-door (police door).
Program the transfer to and from flashing operation, when called
remotely or by a local time switch, to occur only at points in the cycle allowed by
the OMUTCD.
(3) Automatic/Manual Transfer Switch. Furnish a cabinet
with an automatic/manual transfer switch. In the automatic position, ensure that
the controller unit automatically sequences the signal head displays. In the manual
position, ensure that the signal phase or interval sequencing occurs only upon
manual activation of the manual control pushbutton. Locate the switch in the
door-in-door (police door). Ensure that it is unnecessary, when switching from
manual to automatic operation, or vice versa, to do so at any certain time or to
make any time adjustments.
(4) Run/Stop-Time Switch. Furnish a cabinet with a run/stoptime
switch that activates the controller stop-time feature when in the “stop-time”
position. Locate the run/stop-time switch on a switch panel in the cabinet.
(5) Controller Shutdown Switch. Furnish a cabinet with a
controller shutdown switch that cuts off power to the controller unit, conflict
monitor, and detector units. Ensure that power is not cut off to those components
required to maintain flashing operation. Locate the controller shutdown switch on
a switch panel in the cabinet.
(6) Coordinated/Free Switch. Furnish controllers operated in
a coordinated system with a coordinated/free switch. Ensure that this switch
allows the choice of operating the controller under the supervision of a
coordination device or operating the controller independently of coordination
control. Locate the coordinated/free switch on a switch panel in the cabinet.
(7) Detector Test Switches. Furnish momentary contact
switches that will enter a vehicular or pedestrian call for any actuated phase.
Furnish a switch for each actuated phase vehicular and pedestrian detection input.
Conveniently group and label the switches.
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