Cambium Networks cnReach N500 Handleiding (253 Pagina's)

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cnReach N500 User Guide

Technical Reference

phn-4673_002v000 (March 2018)

3-30

Analog I/O

• Measure pressures and levels with Analog inputs

• Drive variable valves or pump rates with Analog outputs

• Measurements use 16-bit A/D circuitry

Per-Pin Capabilties

The connector pinout for the 12-pin IO connector is listed here:

1. Channel 1

2. Channel 2

3. Channel 3

4. Ground

5. Channel 4

4.7Kohm

250 Ohm

65K Ohm

Analog

Input

Pull-Up

Enabled

+VDC

I/O Module Pin

Example: Analog Out

Example: Analog In

I/O Module

Pressure

Gauge

Current

Source

+VDC

Analog

Output

Strong

Pull-Down

Enabled

Voltmeter

16-bit

Calibrated

+VDC

Current

Source

(4-20 mA

Or

1-5VDC)

I/O Module

Proportional

Valve

(4 mA – Closed;

20mA – Open)

+VDC

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