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Chapter 3 Hardware Overview
GPS LED
The GPS LED indicates the status of the GPS hardware. Refer to Figure 3-3 for the GPS LED
location.
Table 3-1 summarizes what the GPS LED indicates.
1588 LED
The 1588 LED indicates the status of the IEEE 1588 synchronization protocol. Refer to
Figure 3-3 for the 1588 LED location.
Table 3-2 summarizes what the 1588 LED indicates.
Table 3-1. GPS LED Color Description
Color Status
Off Not using GPS*
Amber Attempting to start self survey
Blinking Amber Self survey in progress
Blinking Green Self survey complete (normal operation)
Red Error
†
* The GPS LED is turned off if GPS is not set as the time reference.
†
An error is generated when the antenna is disconnected, when there is an antenna malfunction, or when
there is a hardware malfunction.
Table 3-2. 1588 LED Color Description
Color Status
Off Not using 1588*
Amber Initializing
Blinking Amber (2 seconds) Listening or Passive
Green Uncalibrated or Slave
Blinking Green (2 seconds) Master or Premaster
Red Faulty
* 1588 has been disabled or stopped.
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