IE-GPR-LP040-03
13
The Gxxxx data logger and the modem interconnection is provided with
the connection
cable kit LP010
.
Attention!
The metal covering of the modem is conductively connected with negative
pole of power supply. Therefore, it cannot be conductively connected with a vehicle
chassis ground. Use the self-adhesive Dual Lock MD036 for mounting of the modem on
a vehicle.
The cable for voltage distribution between the data logger and the modem must be cut to
proper length. Strip the insulation from the end of the wires and twine it with separated insulated
conductors of the supply line. Be careful of the polarity. The supplied contact tubes must be forced
on the pairs of twisted stripped wires. This preassembled set must be connected to a supply terminal
block of the data logger. On the modem side, the contact tubes were already forced on the wires at
the factory. The correct way to connect wires for the feeder cable is shown in the table given below.
The wire
Connection to a supply terminal
block of the data logger
Connection to a supply terminal
block of the modem
red stripped
the positive pole terminal (+U)
the positive pole terminal (+)
black
the negative pole terminal (GND)
the negative pole terminal (-)
The connector of the communication cable must be connected to the RS232 connector on
the modem and the wires of this cable must be connected to the supply terminal block on the data
logger. The correct way to connect wires for the communication cable is shown in the table given
below.
The wire
Connection to a supply terminal
block of the data logger
red
TxD
black
RxD
shield
GND
Heed to keep a minimum distance between the modem antenna and the data logger during
installation to prevent the data logger interference. This distance may not be in any case less than 50
centimeters. Keeping the distance at least 1 meter is recommended. The correct way to connect is
shown in the picture given below.
The Gxxxx data logger, the modem and other accessories interconnection
