User's Manual

Legend: CHU (front view)
No. Component Description
1 RX A Rx receiver input A
2 RX B Rx receiver input B
3 RX C Rx receiver input C
4 OPEN TO TEST Connectors for test and service purposes, refer to
Ä Table “Legend: Connectors for test and service
purposes (OPEN TO TEST) of the CHU” on
page 43
5 Indicators (LEDs) Status display of the CHU, refer to
Ä Table “Legend: Indicators (LEDs) of the CHU” on
page 44
6 Power button Power button for shutting down and restarting the
hardware component
7 TX Tx transmitter output
The following figure shows the connectors for test and service purposes (OPEN TO
TEST) of the CHU. The following table describes it in detail.
Figure 21: Connectors for test and service purposes (OPEN TO TEST) of the CHU
Legend: Connectors for test and service purposes (OPEN TO TEST) of the CHU
No. Component Description Connector
type
1 Multi-frame Connector for test and approval
measurements of the receiving
quality
SMB (male)
2 Mini-USB USB port for the serial connection
to the console of the operating
system
Mini-USB
3 USB-A USB port, e.g. for data exchange USB A
The following figure shows the indicators (LEDs) of the CHU. The following table
describes it in detail.
Product description
Components> TETRA Channel Unit (CHU)
DIB-R5 advanced
43Operation Manual 90DIBR5advancedOM02 - 1.0