DIGITAL I/O CAPABILITY: Forty independent inputs.
Forty independent outputs.
OUTPUT SPECIFICATIONS:
Configuration: 40 open collector drivers with factory installed
10k
Ω
pull up resistors. Pull-up resistors can be removed when
driving external pull-up devices. Each driver has an internal fly-
back diode.
Pull up Voltage: 5.3V Internally supplied, external connection pro-
vided for user supplied voltage 25V max. Removal of internal
jumper allows user to use two different pull-up voltages.
Maximum Sink Current: Per Channel: 65mA.
Per Bank (8 bits): 500mA.
Per Card: 1A.
Current Limit: Positive Temperature Coefficient circuit protector
in series with each output. Output protection resistance <18
Ω
.
Collector-Emitter Saturation Voltage: <0.75V @ 1mA.
<1V @ 65mA.
Logic: Negative True.
INPUT SPECIFICATIONS:
Configuration: 40 inputs with internal 10k
Ω
pull-up resistors pro-
vided.
Characteristics:
Input logic low voltage:
0.8V max.
Input logic high voltage:
2V min.
Input logic low current:
–600µA max. @ 0V
Input logic high current:
50µA max. @ 5V
Maximum Voltage Level: 42V pk.
Logic: Positive True.
7020/7020-D General Specifications
CONNECTOR:
7020:
96-pin male DIN connector.
7020-D:
Cables with 50-pin male and female D-sub connectors.
ENVIRONMENT: Operating: 0° to 50°C, up to 35°C < 80% RH. Storage:
–25° to 65°C.
7020 and 7020-D Digital I/O Interface Cards
Output
R
2
R
1
5.3V
V
EXTERNAL
GND
R
1
= Pull-up Resistor = 10k
Ω
R
2
= Output Protection < 18
Ω
Output Channel
Input
R
2
5V
GND
R
1
= Pull-up Resistor = 10k
Ω
R
2
= Input Protection = 100k
Ω
Input Channel
R
1
Specifications are subject to change without notice.