Crystal Vision
Specification
27/10/2006
16
GPI 36 User Manual R3.0
5 Specification
General
Dimensions
100mm x 266 mm module with DIN 41612 connector
Weight
183 g
Power consumption
1 W
Available GPIs:
36 bi-directional GPI I/O lines
Control interface
PC software
Statesman control only
Output characteristics
Open collector (or drain):
Pull down to 0 Volts (GND) when ON or open circuit when OFF
Max off voltage:
30V
Current limit:
200mA
Pull up when off:
10K
Ω
resistor to internal +5V
Input characteristics
Max voltage:
30 V
Pull-up:
10K
Ω
resistor to internal +5V
Typical impedance:
10K
Ω
Level discrimination:
A low is detected at voltages below 0.8V, and a high is detected at
voltages above 2.4V. Voltages between 0.8V and 2.4V may
produce either a high or low input indication.
Disconnection testing:
Semiconductor inputs can be tested by checking for the presence of
an open-collector (or open-drain)
Monitoring
LED display and test point
2 x rotary switches (Tens/Units) on front of card to select GPI line
to monitor on LEDs and test point
Yellow LED lights when selected GPI line is low
Green LED lights when selected GPI line is high
The test point is capable of driving a 1M Ohm, 100pF load with a
bandwidth of 100KHz and is current limited to survive an
indefinite short to ground.
