Cambium Networks cnReach N500 Handleiding (253 Pagina's)

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cnReach N500 User Guide

Technical Reference

phn-4673_002v000 (March 2018)

3-32

Digital Input with Pull-Down Resistor

Pull-down resistance is 62 kOhms to ground. The pull-down resistance comes from the channel's

internal input impedance. The pull-down resistor is always present and does not need configuration.

Users can set a stronger pull-down resistor. A 250 Ohm pull-down resistor can be enabled by setting

current-mode on pins that support Analog Input current. In this case, the 250 Ohm current sense

resistor is enabled and is used as the pull-down resistor.

Digital Input with Pull-Up Resistor

Pull-up resistors is 4.7 kiloOhms to 4.7 Volts. The pull-up resistor must be enabled by the user.

Digital Input with 200 Hertz Counting

Digital input channels with 200 Hertz counting can count up to 200 pulses per second. The minimum

pulse width is 2.5 milliseconds.

Digital Input with 10 kiloHertz Counting

Digital input channels with 10 kiloHerts counting can count up to 10 thousand pulses per second. The

minimum pulse width of the pulse is 50 microseconds.

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