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Chapter 1 Front and Rear Panels at a Glance
58503B Front Panel at a Glance
1-2 Operating and Programming Guide
58503B Front Panel at a Glance
1 When the Power indicator
illuminates, it indicates that the
proper input power is supplied to the
Receiver.
2 When the GPS Lock indicator
illuminates, it indicates that the
Receiver is receiving the GPS signal
and is locked on one or more
satellite(s).
3 When the Holdover indicator
illuminates, it indicates that the
Receiver is NOT locked to the GPS
signal. The Receiver is keeping time
based on the internal reference
oscillator signal. The internal
reference oscillator will determine
the accuracy of the 1 PPS signal and
the 10 MHz reference output.
4 When the Alarm indicator
illuminates, it indicates that the
Receiver has detected an internal
condition that requires attention.