Smartnet/Smartzone Secure Communication; Supervisory Tones - E.F. Johnson Company 5100 SERIES Service Manual

value of the current site as "RSSI x" and then returns
to displaying the channel alias.
Searching For a New Site
To search for a new site, press the Site Search
option switch (if programmed) to toggle through the
available sites. "RSSI x" is displayed as just described
and the channel alias is then displayed.
Locking/Unlocking a Site
It is sometimes desirable to stay on the current
site regardless of signal level. To lock the radio on the
current site so that it does not search for another, press
the Site Lock option switch (if programmed). The
display then momentarily indicates "LOCK x" to indi-
cate that the current site is locked ("x" is the current
site number). To unlock the site, press the Lock switch
again and "UNLOCK" is momentarily displayed.
When locked on a site, it is still possible to search
for a different site using the site search function
described in the preceding section. When a new site is
found, the radio is then locked on that site.
2.7.15 SMARTNET/SMARTZONE SECURE
COMMUNICATION
On analog SMARTNET/SmartZone channels,
either the SecureNet or 460 protocols can be selected.
Operation is similar to conventional channel secure
communication described in Section 2.6.17.
On digital SMARTNET/SmartZone channels,
only the DES-OFB protocol is available. Talk groups
can be strapped to Clear, Coded, or Switch selectable,
and clear and secure messages are always
autodetected.
The following calls require their own encryption
key selection: emergency, failsoft, patch, telephone,
private, and system-wide.

2.8 SUPERVISORY TONES

Single Beep (Alert Tone)
•
Power was turned on and a successful power-up
sequence occurred (see Section 2.4.2).
•
The time-out timer is about to expire or the penalty
timer has expired (Sections 2.4.10 and 2.6.7).
•
The conversation timer is about to expire (Section
2.6.8).
•
The system received your page but the paged mobile
is not on the air (Section 2.7.7).
•
Telephone interconnect is not operational (Section
2.7.6).
Continuous Tone (Invalid or No Acknowledge
Condition)
•
A transmission is being attempted on an unpro-
grammed channel or a conventional channel
programmed as receive-only.
•
The transmitter is disabled by the busy channel
lockout feature (Section 2.6.5).
•
The transmitter has been disabled by the time-out
timer feature (Section 2.4.10).
•
The transmitter has been disabled by the conversa-
tion timer (Section 2.6.8).
•
An out-of-range condition exists (SMARTNET/
SmartZone only).
•
A transmission is being attempted before the penalty
timer has expired (Section 2.6.7).
•
Dynamic regrouping has been exited but the
dynamic regrouping channel is still selected
(Section 2.7.13).
•
The paged mobile did not acknowledge the page
(Section 2.7.7).
•
The message that was sent has not been acknowl-
edged (Section 2.7.8).
•
The status condition that was sent has not been
acknowledged (Section 2.7.9).
Single Short Medium-Pitch Tone
•
A valid key has been pressed.
Single Short Low-Pitch Tone
•
An invalid key has been pressed.
Six Beeps (Recurring)
•
The page was received (Section 2.7.7).
Three Beeps (Recurring)
•
A unit-to-unit call was received (Section 2.7.4).
2-25
OPERATION
September 2001
Part No. 001-5100-001