Kenwood NEXEDGE NX-200 Function Reference page 234

9 NXDN TRUNKING SYSTEM
9.3 Registration in an NXDN Trunking System
Transceiver's Behavior for Registration
Following is the transceiver's behavior during Registration.
• If the location of the own transceiver is successfully registered, the transceiver will remain on the acquired control
channel. Otherwise, the transceiver attempts to acquire another control channel again.
• If the transceiver receives the response message indicating failure in Registration from the system when the
transceiver begins Registration, the transceiver retains the information (a maximum of 48 messages) and then the
transceiver will attempt to acquire a control channel again. Since the information is not cleared even if the zone is
changed and it is retained until the transceiver is turned OFF, the transceiver will not begin Registration if the
acquired control channel has the same Site No. as the Site No. that was previously determined as a Registration
failure. Also, if the transceiver does not receive any response from the system when the transceiver begins
Registration or if a timer for Random Access expires, the transceiver will attempt to acquire a new control channel
again. In this case, incompletion of Registration prevents the transceiver from being used in the system. Upon
acquisition of a new control channel, the transceiver begins Registration according to the conditions.
• The transceiver cannot initiate a call until location registration is completed, because Registration is a mandatory
condition to communicate using a system. However, in a system that does not require location registration, the
transceiver can initiate a call even if location registration is not completed. This depends on the system
configuration.
• If the transceiver information registered in the system has already been cleared when the transceiver initiates a
call, the transceiver begins Registration and then terminates the call upon receipt of a response message from
the system indicating non-registration.
Registering the Group ID Used by the Own Transceiver in a System
(Group-registration)
The transceiver can register the Group ID used by itself in the system.
Conditions for the Transceiver to Begin Group-registration
The transceiver begins Group-registration under the following conditions.
• For Registration
The transceiver registers both the Unit ID of own transceiver (location registration) and Group ID (group
registration) when the transceiver begins Registration, such as a case when the transceiver is turned ON or when
the transceiver roams to a different site.
• If changing to another Group ID without Group Registration
The transceiver begins Group-registration 2 sec after changing the Group ID by a user operating the transceiver.
• If attempting to initiate a call using a Group ID without Group Registration
If the transceiver attempts to transmit using a new Group ID that is different from the registered Group ID in the
system, the transceiver will continue to initiate a Group Call after beginning Group Registration for the new Group
ID.
Note
• The transceiver does not begin Group-registration while the transceiver is on a traffic channel. If a Group ID for which the transceiver
waits on a control channel is different from the Group ID registered in the system at the time when a call on a traffic channel ends, the
transceiver will begin Group-registration again.
• The transceiver's behavior is similar to the behavior if the transceiver sends data using a Group Call or initiates a Group Call using a
PC command. If the Group ID for a group that has not been registered in the system is changed after a transmission ends, the
transceiver will begin Group-registration 2 sec after changing the Group ID.
• If the transceiver begins Group-registration prior to a user pressing the PTT switch to initiate a Group Call, the transceiver will
terminate the Group Call when the transceiver receives a response message from the system indicating a group registration failure.
FUNC (K)/Ver 4.00
CONTENTS INDEX 200