iNS/iDS 2-Wire System Manual
350-077
Rev. D - 1/20/2021
Page 98 of 107
16.
Descriptions of Pilot LED Operation
Note: You can view examples of each LED flash pattern in all of the Polara FS apps (iOS, Android & PC) by
viewing the LED Flash Guide in the Help or User Manual section.
The iNx push button station (PBS) operates in two primary states, Traffic state or Offline state.
In the traffic state, the PBS allows pedestrians to place calls using the push button and notifies the pedestrian of
pedestrian interval changes at the intersection.
In the offline state, all pedestrian traffic features are disabled and the Pilot LED is used to convey the offline sub-state to
the traffic engineer who is maintaining the system.
16.1
Pilot LED in Traffic State
During traffic state the Pilot LED will be On, Off or dimmed. When the Pilot LED is off, no call is placed on the phase.
When the Pilot LED is on, this represents a call has been placed. It could be placed from its own button press, a button
press from another PBS on the same traffic phase or from the iCCU-X2 when operating in iNS2 mode. The iCCU-X2 will
place calls at system startup, when it detects PBS errors or configuration issues, or when a maintenance personnel uses
the iCCU-X2 to manually place calls. The Pilot LED will momentarily dim if the pedestrian pushes the button when the
LED is already lit.
16.2
Pilot LED Offline Sub-States and Modes
16.2.1
Power-On-Self-Test / Maintenance Mode
Pilot LED will blink in a 3-flash pattern.
When a unit is powered on, it will perform an internal self-test to determine if all internal modules are operating as
expected. If an internal module fails, the unit will switch to a 5-flash pattern. To determine the cause of the failure, connect
to the unit via Bluetooth and read the unit’s health log. If a unit completes the Power-On-Self-Test successfully, the flash
pattern will switch to 2-flash.
The 3-flash pattern indicates that t
he unit is in “Maintenance Mode” which occurs during the Power-On-Self-Test, but also
can occur under the following conditions:
•
During a firmware update of the unit.
•
When placed in maintenance mode by the user. This is usually done when testing the playing of sound files.
•
When an iNS2 PBS is directed by the iCCU-X2 to go into Maintenance Mode by turning on iCCU Maintenance
Mode in the iCCU Configuration / Setup screen of the Polara FS App.
16.2.2
Searching for iPHCU3S or iCCU-X2 Connection
Pilot LED will blink in a 2-flash pattern.
This state happens after the PBS determines that it is functioning correctly and is searching for the presence of an
iCCU-X2 or iPHCU3S. This occurs in all units regardless of iNS2 or iNS3 designation. If the unit is connected to a
iPHCU3S, the 2-flash pattern will occur until the signal from the data terminal is detected. If there is an issue with the data
terminal, then the 2-flash pattern will continue.
Note: Once a certain period of time occurs and the iPHCU3S is not detected, the iNS3 unit will not look for the data
terminal signal again without power-cycling the unit.
If the unit is connected to an iCCU-X2, the iNS2 will perform the 2-flash pattern while the unit searches for a connection to
the iCCU-X2 via PLC. It will begin the 2-flash pattern as it searches for an iCCU-X2 using the PLC interface. If the
