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2.3 CPU control board
1
LED RS422/485 protocol:
Red when sending signal.
Green when receiving signal.
2
LED RS232 protocol:
Red when sending signal.
Green when receiving signal.
3
LED 4-20mA* current loop protocol:
Red when sending signal.
Green when receiving signal.
4
LED network light:
Green flashing rapidly = connection to network
in progress.
Green flashing slowly = connected to network.
Red flashing slowly = loss of network.
connection or failure to connect to network.
5
LED green when CPU control board is powered up.
6
LED red when communication to a secondary
petrol price sign is correct.
7
RJ45 Ethernet socket for network connection of
the CPU board (main petrol price sign) to client PC.
8
Connection of RS422/485 protocol.
9
Connection of RS232 protocol.
10
Connection of 4-20mA current loop protocol.
11
Connection of CPU board 5V power supply**.
12
Connection of LED lines 15V power supply**.
13
Communication to LED lines.
14
Connection of a secondary petrol price sign to the CPU board.
15
Connection to extension card.
16
Antenna for HF communication with KarbuPad keypad.
Polarity of the connections is indicated on the CPU board.
A technical file is generated by the KarbuConfig software depending on your installation
and configuration, to suggest wiring for the CPU board.
*If Rx/Tx are reversed, the state of the LED is:
Green if
Orange (flashing red + green) if
** The TBT supply cables can be extended, however, for the installation to be compliant, please refer to the
NFC 15-100 norm to size the cables (length, cross section...).
8
9
10
11
12
is unchecked in the KarbuConfig software.
is checked in the KarbuConfig software.
1
7
4
2
3
16
5
13
EN
6
14
15
7
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