Tait International Limited TBCK4A User Manual

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TB9400 Installation and Operation Manual
Description
21
© Tait Limited March 2015
1.6
Licenses
Some operational functions of the base station are controlled by licenses. 
These functions will not work unless you purchase the appropriate feature 
license and enable the feature set controlled by that license. The feature sets 
currently available are listed below.
P25 Common Air 
Interface
(TBAS050)
Allows the base station to go into Online mode. Base stations are always 
provided with this license.
P25 Trunking 
Operation
(TBAS056)
Allows the base station to participate in a trunking system. Without this 
feature, the base station cannot provide a control or a status connection to 
a trunking site controller and it cannot function as a control or traffic 
channel.
Networking with 
Centralized Voter
(TBAS061)
This feature is required in any base station that is used in a voted 
configuration, such as simulcast. It also allows a base station to act as a 
central voter.
Simulcast Enable 
Phase 1
(TBAS062)
This feature is required in base stations that have transmitters and belong 
to a P25 Phase 1 simulcast network. If the base station is a master or backup 
master (at least one per channel group is recommended), it also requires the 
Networking with Centralized Voter license (TBAS061).
Linear Simulcast 
Modulation
(TBAS065)
Allows the base station to transmit using the LSM modulation scheme. 
This scheme allows increased site separation in simulcast networks. Also 
requires the Simulcast Enable Phase 1 license (TBAS062).
Failsoft for P25 
Trunking
(TBAS063)
Allows trunked channels that become isolated from a site controller to 
perform simple conventional operation and to interface to a digital dispatch 
system. If a trunked channel consists of several base stations in a channel 
group, only the central voter (normally the master) needs this license. It is 
then able to become the failsoft repeater for that channel group. 
P25 Phase 2 
Operation
(TBAS066)
This feature allows the base station to operate in trunking mode using 
two-slot TDMA as defined by the P25 Phase 2 standards. 
Simulcast Enable 
Phase 2
(TBAS069)
This feature is required in base stations that have transmitters and belong 
to a P25 Phase 2 simulcast network. Also requires the P25 Phase 2 
Operation (TBAS066) and Simulcast Enable Phase 1 (TBAS062) licenses. 
Tait also recommends adding the Linear Simulcast Modulation (TBAS065) 
license as it provides improved RF performance.