Model: XR Series Transmitter with Internal or External Antenna
All or some of the below symptoms may be present.
Red LED is flashing on the Transmitter front display.
Green LED may or may not be illuminated. When the green LED is illuminated, the Transmitter is currently broadcasting (broadcast mode). When the green LED is NOT illuminated, the Transmitter is not broadcasting (standby mode).
Transmitter front display does NOT display its NTP communication symbol (upper right hand corner of front display screen) - indicates it's not communicating with its NTP time source.
Clocks may be displaying a visual signal loss indicator due to they have not received a time update for three days; Analog Clock second hand is stepping and a Digital Clock/Timer colon is flashing.
Transmitter is not receiving a time update.
From the switch settings on the back of the unit: verify dip switch #1 is set to NTP and dip switch # 2 is set to LAN.
Verify an Ethernet cable is connected to the Transmitter Network LAN Port and the cable is properly inserted into an active LAN port.
Verify the Ethernet cable and network port drop does not have any damage or degradation.
Verify the Transmitter Network LAN Port is indicating an active network connection - 1 flashing LED and 1 solid LED.
Contact the facility's IT staff to inquire as to what may have changed on the system or their site's designated NTP time source (server), that may be causing the unit to not see its configured NTP time source.
Request assistance from the facility's IT staff to access the Transmitter to verify the configured NTP server. You will need a laptop with the Firefox web browser for this process.
Poor power output, can result in the Transmitter not being able to pull the time update. Check voltage at the transmitter by completing the steps in Transmitter continues to power cycle and does not stay synced
If none of the above steps resolved the issue, the import on the Transmitter may be bad and need replacing.
Validate and correct NTP time source switch settings.
Replace defective cables.
Obtain Transmitter NTP server details and update Transmitter NTP configuration as required.
Replace power supply if bad output.
After replacing all defective components, the power supply is good, and still no “S” symbol, replace the Transmitter.