Gantner Q Series Manual page 25

Q.series
Gantner Instruments Test & Measurement GmbH
Connecting the modules → Connecting the socket
4
Using less than 16 modules
In this way you can use the Q.bloxx Extension Socket QES to
1. Obtain another feed point for the supply voltage.
2. Operate the modules with two interfaces in order to increase
the data throughput.
The modules situated on the right of the extension socket are
supplied by the extension socket and the modules located to the
left must be supplied via the socket on the far left.
Crossing the UART lines is only necessary in the second case. The
factory setting of the DIP switches is the 1:1 connection (i.e. with
the interface lines directly connected), but check the setting of
the DIP switches just to be sure.
Using more than 16 modules
The power supply must be routed via the socket situated on the
far left as well as via the extension socket. The pin assignment is
identical to the pin assignment for the side connection (Fig. 4-6,
Page 27). The DIP switches should be set to the crossover mode.
You have four possible ways of connecting the interfaces.
1. You can use the connection on the socket on the far left.
In this way you can connect both interfaces if you cross the
UART lines via the DIP switches on the extension socket. This
variant is, for example, suitable for the connection of a Q.pac
Test Controller.
2. You can use a Q.gate Test Controller.
Plug the Q.gate Test Controller into the socket on the far left
or far right and cross the UART lines using the DIP switches
on the extension socket. The Test Controller then uses both
UARTs for communication with the modules.
3. You connect the interface of UART1 via a cable on the left
socket and the interface of UART2 on the Q.bloxx Extension
Socket QES.
Also in this case you must cross the UART lines via the DIP
switches on the extension socket, because the modules only
use the lines of UART 1.
4. You connect both interfaces via cable to the Q.bloxx Exten-
sion Socket QES.
In this way you can connect both interfaces if you cross the
UART lines using the DIP switches of the extension socket.
This variant is, for example, suitable for the connection of a
Q.pac Test Controller.
DIP switch settings
The extension socket is operated in one of two modes depending
on the application:
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