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SATEL OY
// SATELLAR MANUAL // RADIO UNIT // USER GUIDE // V. 1.8
5. Interfaces
3
5.6 Function button
TD
RD
PWR
STAT
RX
TX
CTS
RTS
Function button
SA00034
Figure 5.7 Location of the function button
The function button is located below the LED indicators. By pressing the button you can restart or tempo-
rarily configure the serial data connector to accept NMS messages and thereby getting the RU accessible
by SATEL NETCO Design stack for viewing and changing the settings irrespective of the user settings.
Example 1:
The RU is connected with the CU and the user has selected the setting ‘MCU UARTs to SATBUS’ (see chap-
ter 7.3). Now both the data and NMS messages are assumed to flow between the RU and the CU, so there
is no connection at the serial data connector. Then the CU gets broken or is removed before changing this
setting. By pressing the function button it is possible to temporarily configure the serial data connector to
accept NMS messages, which means that the RU is accessible by SATEL NETCO Design stack. Thereafter
the settings can be viewed and changed irrespective of the serial connector configuration.
Example 2:
The RU is used in the transparent mode of data transmission (serial data connector configuration ‘Data
UART to radio D9 RD/TD’) and there is a temporary need to change or view settings using the CU. By press-
ing the function button it is possible to temporarily configure the NMS messages to flow between the RU
and CU.
The duration of the button pressing determines to which state the serial data connector is configured as
described in the table below. For the names of the LED indicators, see chapter 5.5. When the button is
released the LED indicators return to the normal state.
