This parameter sets the
time interval of the Heartbeat message that will be sent. It is specified
in minutes.
When the Heartbeat Message
is enabled, press F1 (upper
left Function key next to display).
Enter a value (in minutes)
between 1-999. Press ENTER
to accept.
Example: 30 will initiate
a working key download every thirty (30) minutes. Be advised, this
will put the terminal temporarily out of service for a short duration
until the key has successfully been downloaded.