Interconnection Relay Unit (Iru) - Only In The Case Of A Chu Expansion - Hytera ACCESSNET-T IP DIB-R5 advanced Operation Manual

Product description
Components> Interconnection Relay Unit (IRU) ‒ only in the case of a CHU expansion
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3.2.8 Interconnection Relay Unit (IRU) ‒ only in the case of a CHU expan-
sion
The Interconnection Relay Unit (IRU) is the receiving and distribution unit of the base sta-
tion in a second equipment or compact rack and establishes the connection to a BSCU in
the first equipment or compact rack. All the control information as well as clock and time
signals are distributed by the IRU to the CHUs in the second equipment or compact rack
and kept synchronous.
The IRU is a modular subrack for the DIB-R5 advanced, up to two IRUs can be installed.
An IRU can be replaced during ongoing operation in case of malfunctions to quickly re-
establish radio coverage.
The following figure shows the front view of the IRU. The following table describes it in
detail.
48
Component
Mini-USB
Reset button
Description
USB port for service purposes
Reset button for restarting the
integrated BSCU Mainboard
(MCB) component
Operation Manual 90DIBR5advancedOM02 - 1.0
DIB-R5 advanced
Connector
type
Mini-USB
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