Kenwood NEXEDGE NX-200 Function Reference page 227

9 NXDN TRUNKING SYSTEM
9.1 Initiating Voice Communications (Basic Transmission and Reception)
Configuration using KPG-111D/ DN
Configuring the Priority Monitor ID (
Participating in an On-going Voice Call Midway Through the Call (Late Entry)
Late Entry is the function to participate in on-going voice calls even if the transceiver receives a voice call midway through
the call.
In an NXDN Trunking system, the transmitting transceiver sends a communication request on the control channel, and the
transceiver will migrate to the specified traffic channel to communicate. A transceiver that is turned ON after the traffic
channel assignment is completed or a transceiver that migrated from another site cannot participate in the on-going
communications because they have not received the traffic channel assignment message. In this case, the transceiver can
participate in on-going communications by receiving the traffic channel assignment message that is periodically sent from
the system on the control channel.
Searching Whether the Transceiver Receives a Call (Scan)
Using the scan function, the transceiver searches for a call or communications from target Group IDs (GIDs) according to
the following scan functions. The transceiver migrates to a traffic channel and start receiving if a GID which can be
decoded is detected.
• Single Scan
• Multi Scan
• List Scan
Refer to 19 SCAN on page 436
Transmitting
Pressing the PTT switch, or selecting an NXDN ID and then pressing the PTT switch sends a message requesting various
types of communications to a system on a control channel. The transceiver can start communications after the system
assigns a traffic channel to the transceiver.
Restricting the Continuous Transmission Duration (Time-out Timer)
Time-out Timer (TOT) is the function to restrict the duration for the transceiver to continuously transmit.
This function is used to prevent a user from occupying a repeater or frequency which is shared with other users. The
transceiver automatically stops transmitting and releases the channel if it continuously transmits longer than the configured
time.
In an NXDN Trunking system, the system controls the amount of time that the transceiver can continuously transmit on a
traffic channel. If the amount of time that the transceiver can continuously transmit to the system is not specified, Time-out
Timer configured for the transceiver is used.
Time-out Timer can be configured for each zone.
Also, TOT Pre-alert, timer configuration relevant to the Time-out Timer function, can be configured.
FUNC (K)/Ver 4.00
See FPRG 8.8.10 GID (Priority Monitor ID))
for details of Scan.
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