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SATEL OY
// SATELLAR MANUAL // RADIO UNIT // USER GUIDE // V. 1.8
5. Interfaces
3
Duration of
Specific to
the press
Indication
LED HW variant Effect
Typical use case
More than 3s
The three
uppermost
LEDs are
switched off
(0001 1111)
•
•
•
•
•
•
•
•
RU-xxxx00
NMS messages in RTS and
CTS lines, no user data
transfer
More than 4s
The four
uppermost
LEDs are
switched off
(0000 1111)
•
•
•
•
•
•
•
•
User data transfer in RD and
TD lines (protocol RS-232),
NMS messages between the
Radio and Central units
Serial port configuration:
Data UART to radio D9 RD/
TD (see chapter 7.3). Need to
temporarily configure the RU
using NMS from the Central
unit. Normally this mode is
selected by configuring the
serial port as described in
section 7.3.
More than 5 s
The lowest
three LEDs
remain
switched on
(0000 0111)
•
•
•
•
•
•
•
•
RU-xxxx01
NMS messages in RD and TD
lines (protocol RS-485), no
user data transfer
Serial port configuration: RS-
485 (see chapter 7.3). Need to
temporarily configure the RU
using NMS from a PC.
More than 6 s
The lowest two
LEDs remain
switched on
(0000 0011)
•
•
•
•
•
•
•
•
RU-xxxx01
NMS messages in RD and TD
lines (protocol RS-422), no
user data transfer
Serial port configuration: RS-
422 (see chapter 7.3). Need to
temporarily configure the RU
using NMS from a PC.
More than 7 s
The lowest
LED remain
switched on
(0000 0001)
•
•
•
•
•
•
•
•
No effect
More than 8 s
All the LEDs
switched off
(0000 0000)
•
•
•
•
•
•
•
•
The RU is restarted and the
serial data connector is reset
to the state defined by the
user
Table 5.3
Function button operation