Chapter 2 Features and Functions
Outputs
Getting Started Guide 2-11
Alarm BITE Output (59551A Only)
When an alarm condition exists, the Alarm BITE (Built In Test
Equipment) relay contact closes, making a closed circuit. This signal
may be used to drive an external visual (e.g., red light) or audio device
(e.g., horn or bell) when the Receiver detects an internal condition that
requires attention.
When power to the Receiver is lost, the Alarm BITE relay contact is
open (no alarm condition is indicated).
The relay opens and closes with the Alarm indicator. (Mating connector
is Amphenol part number 31-224 [glass-filled Noryl] or #31-2226
[Telfon]).
Alarm Output (58503B Only)
When an alarm condition exists, the Alarm output is pulled down to a
TTL low. This signal may be used to drive an external visual (e.g., red
light) or audio (e.g., horn or bell) device when the Receiver detects an
internal condition that requires attention.
10 MHz OUT Output (58503B Only)
This is a 10 MHz output reference signal traceable to UTC (USNO)
that you can use as a high accuracy frequency “house standard” for
calibration or development needs.
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