Measurement Computing Data Translation DT3034, User Manual

Page: 37 / 178

Chapter 3
36
Configuring the DT740 Screw Terminal Panel
This section describes how to locate and configure the jumpers and resistors on the DT740
screw terminal panel for use with a DT3034 board.
Figure 4 shows the layout of the DT740 screw terminal panel, and shows the location of the
jumper and resistors.
Figure 4: Layout of the DT740 Screw Terminal Panel
Configuring Jumper W1 - Common Ground Sense
When shipped from the factory, jumper W1 connects the low side of the input amplifier (Amp
Low) on the DT3034 board to analog ground.
When using pseudo-differential analog inputs, remove jumper W1 and connect Amp Low to a
remote common-mode voltage to reject offset voltages common to all 32 input channels. Refer
to
page 46 for an example of using jumper W1.
J1
J2
1
8
9
16
17
24 32 40 48 56
25 33 41 49
W1
R1 to R16
CTR
57
CTR
65
Trig
73
GND
81
DIO
97
DIO
89
Shield
105
64 72 80 88 96 104 112
Gnd 0
Gate 1
Clk 0
Out 0
Gate 0
Gnd 1
Clk 1
Out 1
R17 to R32
Jumper and
Resistors