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Chapter 3 Making Signal Connections
© National Instruments Corporation 3-13 6527 User Manual
The overcurrent protection ratings for a 6527 device are as follows
(typicalat25°C):
• Overcurrent protection limit = 260 mA
• Current limit time = 1 µs at 7 V
• Duration of current above operating current (120 mA): 1 s max at 7 V
Caution
Overcurrent protection is for protection against transient fault conditions only.
The 6527 should not normally be operated above 120 mA. National Instruments is not
liable for any damage resulting from signal connections that exceed 120 mA.
Power-on and Power-off Conditions
At power-up, the initial state of the digital output lines are logic high and
the solid-state relays are open.The solid-state relays are also open when the
computer and the 6527 device are powered off.