The Type-D trunking system uses a distributed logic system that does not use a dedicated control channel. All trunked channels can be used for voice traffic channels to be shared more effectively with a large number of users.
Type-D multi-site trunking can have up to 30 repeaters (RF
units) per site and up to 48 trunked sites can be interlinked
over the IP network. An IDAS™ terminal radio user can communicate
with other IDAS™ terminal radio users working under the
interlinked trunked sites.*
* Up to 16 pre-programmed sites can be down-linked simultaneously for a group call.
In Type-D multi-site trunking, the combination of prefix ID and individual ID (or group ID) codes is used as a unique identifier. The Type-D multi-site trunking can have up to 30 prefix ID codes per system and up to 2,000 individual ID codes and 2,000 group ID codes per prefix ID. In total, up to 60,000 individual IDs and 60,000 group ID numbers can be used in a system.
When a user turns on a radio, or moves from site to another site, the radio automatically starts a hunt scan and registers the own ID information to the repeater site. No user interaction is required.
The fleet management function allows the system manager to control a user group in a fleet. Users can be divided in up to 5,000 fleets and the system manager can enable or disable the use of the system for any fleet.Fleet management example
|Alias name||Prefix ID
Type-D multi-site trunking requires only the UC-FR5000 (#03) trunking controller which can be installed into the IC-FR5000 series repeater – no external server and no extra rack space is required.
Type-D multi-site trunking can reject to register an unauthorized terminal radio to the repeater site by using the electronic serial number (ESN) or individual ID of the radio.
IDAS™ repeater sites can update terminal radios programmed content with new system information like added channels and new sites over the air without interrupting use of the radio.
Terminal radios can listen to a call of higher priority even in the
middle of lower priority on-going calls in the order below.
(1) Emergency Call (2) Individual Call (3) Group Call
When used with the RS-MGR1 system manager software, air time information, network connectivity/statistics and hardware status of the Type-D multi-site trunking repeater sites can be obtained using Syslog messages.
The remote communicator creates an IP-based virtual radio on
a PC and works as a simple dispatch. IDAS™ communication
features can be used with the remote communicator software.
With an IDAS™ multi-site trunking, it is possible to have radio
communications all the way from the basement to the top floor,
all in stable digital audio. Already deployed LAN cables can be
used in an in-building solution.