Rs-232 Port; G 403; G 406; Genibus - Grundfos G 401 Installation And Operating Instructions Manual

9. RS-232 port

Applies to:

• G 403

• G 406.

The modules function as a gateway and control a
radio modem.
To be connected to the RS-232 port with one of the
cables supplied:
• DCD cable:
- RJ45 for 9-pin D-SUB plug.
- Colour: Black.
• RI cable:
- RJ45 for 9-pin D-SUB plug.
- Colour: Grey.
Connection of RJ45 plug to D-SUB plug
RJ45
RS-232

connection

8 1
DCD cable
Pin no. Type Pin no.
1 CTS 8
2 RTS 7
3 TXD 3
4 RXD 2
5 GND 5
6 DTR 4
7 DSR 6
8 DCD/RI 9
9.1 G 403
Functions as a gateway between the Ethernet and
the RS-232 port.
9.2 G 406
Functions as a gateway between the GENIbus and
the RS-232 port.
14
9-pin D-SUB plug
RS-232 connection
1 2 3 4 5
6 7 8 9
Black Grey
RI cable
Type Pin no. Type
CTS 8 CTS
RTS 7 RTS
TXD 3 TXD
RXD 2 RXD
GND 5 GND
DTR 4 DTR
DSR 6 DSR
DCD 1 RI

10. GENIbus

Applies to:
• G 404
• G 405
• G 406.
The GENIbus enables the connection of other
Grundfos E-products for wireless communication.
11. Connection

11.1 Power supply

The G 400 can be connected to a supply voltage of
24 VDC or directly to the PU 101.
Note: No other equipment than the CU 401 and the
G 400 range must be connected to the PU 101.
The G 400 can also be connected to the PU 102
(UPS) to ensure continuous operation in case of
power cuts.
Note: The G 400 incorporates a back-up battery
which maintains the GSM communication in case of
short power cuts.
Antenna
Ethernet
G 401
+ + - -
24Vdc/2.5A
N L
PU 101
Fig. 3 Example of connection
Antenna
Ethernet
G 401
PU 102
+
+ + - -
24Vdc/2.5A
Battery
PU 101
N L
Fig. 4 Example of connection with PU 102
(UPS)
CU 401
1 2 3
PU 102
CU 401
1 2 3
- + -
Battery