Hytera ACCESSNET-T IP DIB-R5 advanced Operation Manual page 20

Product description
In each equipment rack DIB-R5 advanced offers space for four TETRA Channel Units
(CHU), which are each providing one TETRA carrier. By using a second equipment rack,
up to eight carriers are supported. Thus offers DIB-R5 advanced a maximum of 32 radio
channels to the radio subscribers that can be used simultaneously. To increase the avail-
ability, DIB-R5 advanced can be equipped with different redundancy options to avoid
"Single Points of Failure". On the hardware side, the transceivers, control unit and voltage
supply can be designed redundantly. Furthermore, additional software-based redundancy
options are available that further increase the reliability of features.
DIB-R5 advanced supports different system configurations of the antenna coupling
system, including motor-tuned cavity combiner. This enables individual and fast remote
frequency change. In addition, DIB-R5 advanced supports for optimal reception triple
diversity. This optimizes the radio characteristic of the base stations and reduces the
number of base stations that are required for covering a certain area.
DIB-R5 advanced can be configured depending on customer requests and network
requirements and expanded e.g. through additional carriers. This allows the mobile radio
network to be adapted accordingly to meet new requirements and protect the current
investment.
For time synchronization, the DIB-R5 advanced compact can be operated optionally with
satellite-based synchronization, e.g. GPS, Galileo and Glonass (Global Navigation Satel-
lite System, GNSS).The continuous operation is also supported without satellite-based
synchronization sources. This allows a reliable operation even in underground areas or
within buildings without the need of using an antenna for the reception of a satellite
signal.
The following figure shows the front view of the DIB-R5 advanced with four TETRA
Channel Units (CHU) and DUPLEXER. The following table describes the components in
greater detail.
20 Operation Manual 90DIBR5advancedOM02 - 1.0
DIB-R5 advanced