E.F. Johnson Company 5300 ES Series, Руководство по эксплуатации

Страница: 95 / 142

March 2008 5300 ES Series Mobile Radio Operating Manual 6-17
SMARTNET / SmartZone / P25 Trunked Features
Otherwise, if the lock mode was not specified, the selected talk group can be manually
changed and the previous talk group is reselected if power is cycled. If a locked regroup
command is received, the displayed talk group cannot be changed manually or by cycling
power. It can be changed only after a clear order is received from the console.
Dynamic regrouping operates as follows:
1 When this command is received, alternating tones sound and the radio automatically
changes to the regrouping channel. The display shows the alias entered for the dynamic
regroup enabled channel.
2 If a pre-defined channel was changed above, go to Step 3. Manually select the channel
corresponding to that alias. If this is not done, transmission still occurs on the new
channel, but the alternating tones sound each time the PTT switch is pressed. If you did
not have a pre-defined channel, the talk group of the channel you are on is temporarily
changed. If this happens and you change channels, you lose the temporary talkgroup.
3 Talk and listen as usual. When dynamic regrouping is canceled by the dispatcher, a
short tone sounds. If a standard channel is not selected after this occurs, transmission is
not allowed if the talk group is assigned as a dynamic regrouping talk group only. If it
is assigned as a normal talk group, normal transmissions are allowed. When a Cancel
order is received, the mobile moves back to your last channel unless the Lock order was
received. If no lock order was received, you are still locked on the Dynamic Enabled
Channel.
6.13 SmartZone and P25 Trunking Unique Features
SmartZone
®
and P25 Trunked modes can provide access to single or multi-site systems.
The P25 Trunked mode can provide access to a single trunked site or roaming between
several trunked sites.
6.13.1 Busy Override
The busy override feature is enabled at the system level by the system manager and is not
a programmable radio feature. It allows a call to be placed even if not all of the sites you
are calling have a free traffic channel. The only sites guaranteed to be included are the
Critical Sites and the sites where a Critical User is located. This feature operates as
follows:
1 Assume that you have attempted to place a call and the system was busy (“BUSY”
displayed and busy tone sounded).
2
Release the PTT switch and then press it for five seconds or more. If a chirp-like tone
sounds with the PTT switch pressed, busy override is occurring.