Ver.1.04
.1.00er.1
AO-1604L-LPE
4
This section shows how to connect the analog output signal by
using a flat cable or a shielded cable.
The following figure shows an example of flat cable connection.
Connect the signal source and ground to the CN1 analog output.
Analog Output 0..3*2
Analog Ground
BOARD
CN1
Cable
Target
The following figure shows an example of shield cable
connection. Use shielded cable if the distance between the signal
source and product is long or if you want to provide better
protection from noise. For each analog input channel on CN1,
connect the core wire to the signal line and connect the shielding
to ground.
Analog Ground
Shield cable
Analog Output 0..3*2
BOARD
CN1
Target
*2
The number of channels depends on each product. The AO-1604L-LPE has four channels.
CAUTION
-
When the power supply is turned on, the output voltage of all
channels becomes 0 V.
-
If the product or the connected wire receives noise, or the
distance between the product and the target is long, data
may not be outputted properly.
-
For analog output signal, the current capacity is ±3mA (Max.).
Check the specification of the connected device before
connecting the product.
-
Do not short the analog output signal to analog ground,
digital ground, and/or power line. Doing so may damage
the product.
-
Do not connect an analog output signal to any other analog
output, either on the product or on an external device, as this
may cause a fault on the product.
The following sections show examples of how to connect digital
I/O signals, counter I/O signals, and other control I/O signals
(external trigger input signals, sampling clock input signals, etc.).
All the digital I/O signals and control signals are LVTTL level
signals.
Digital Input Connection
10k
Ω
Digital Input
Digital Ground
BOARD
CN1
Cable
Target
Digital Output Connection
Digital Ground
BOARD
CN1
Cable
Target
Digital Output
I
OL
=8mA
About the counter input control signal
Counter Gate Control Input (refer to the chapter 3 Connector Pin
Assignment) acts as an input that validate or invalidate the input
of an external clock for the counter. This function enables the
control of an external clock input for the counter. The external
clock for the counter is effective when input is "High", and invalid
when input is "Low". If unconnected, it is a pull-up in the board
(card) and remains "High". Therefore the external clock for the
counter is effective when the counter gate control input is not
connected.
CAUTION
-
Do not short the output signals to analog ground, digital
ground, and/or power line. Doing so may damage the
board.
-
Do not connect a digital output signal to any other digital
output, either on the board or on an external device, as this
may cause a fault on the board.
4 Digital Input / 4 Digital Output
External Trigger Inputs
Counter Input / Output
PCI Express Bus
CN1
FPGA
DC/DC
converter
4 Analog Outputs
DA
Converter
DA
Converter
DA
Converter
DA
Converter
Digital I/O signals, Counter signals and
Control signals Connection
Block Diagram
Analog Output Signal Connection
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