Data Translation DT9812 Series, Руководство пользователя

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Wiring Signals to the Module
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Preparing to Wire Signals
This section provides information about wiring signals to a DT9812, DT9813, or DT9814 Series
module.
Wiring Recommendations
Keep the following recommendations in mind when wiring signals to a DT9812, DT9813, or
DT9814 Series module:
• Follow standard ESD procedures when wiring signals to the module.
• Use individually shielded twisted-pair wire (size 16 to 26 AWG) in highly noisy electrical
environments.
• Separate power and signal lines by using physically different wiring paths or conduits.
• To avoid noise, do not locate the box and cabling next to sources that produce high
electromagnetic fields, such as large electric motors, power lines, solenoids, and electric
arcs, unless the signals are enclosed in a mumetal shield.
• Prevent electrostatic discharge to the I/O while the box is operational.
• Connect all unused analog input channels to analog ground.
Wiring Signals to a DT9812-2.5V, DT9812-10V, DT9812A,
DT9813-10V, DT9813A, DT9814-10V, or DT9814A Module
For the DT9812-2.5V, DT9812-10V, DT9812A, DT9813-10V, DT9813A, DT9814-10V, and
DT9814A modules, you wire signals to the screw terminals on the module.
Table 2 lists the
screw terminal assignments for the DT9812-2.5V, DT9812-10V, and DT9812A modules. Table 3
lists the screw terminals for the DT9813-10V and DT9813A modules. Table 4 lists the screw
terminals for the DT9814-10V, and DT9814A modules.
Table 2: DT9812-2.5V, DT9812-10V, DT9812A Screw Terminal Assignments
Screw
Terminal Signal
Screw
Terminal Signal
20 USB +5 V Out 40 Ext Trigger
19 Ground 39 Ext Clock
18 Counter 0 In 38 Ground
17 Counter 0 Out 37 Digital Output 7
16 Counter 0 Gate 36 Digital Output 6
15 Ground 35 Digital Output 5
14 DAC 1 34 Digital Output 4
13 DAC 1 Return 33 Digital Output 3
12 DAC 0 32 Digital Output 2