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Cooper Bussmann 915U-2 Wireless Mesh I/O and Gateway User Manual
Rev Version 1.2.2
Voltage Inputs
All analog inputs can be set up to read voltage. If using analog input 1 and 2, connect the voltage source across
the positive terminal of the input and ground. If using analog input 3 and 4, connect across the input terminal and
GND.
NOTE Default scaling gives 0–20V for 4–20 mA output on analog 1 and 2. Default scaling for analog
3 and 4 gives 0–5V for 4–20 mA output. For voltage input on analog 3 and 4, set both DIP switches to the
“off” position.
Figure 20 Voltage Inputs
Analog Outputs
The 915U-2 module provides two 0
–
24 mA DC analog outputs for connecting to analog inputs on equipment (such
as PLCs, DCS, and loggers) or connecting to instrument indicators for displaying remote analog measurements.
The 915U-2 analog outputs are a sourcing output and should be connected from the analog output terminal
through the device or indicator to ground (GND). See Figure 21 for connections. The LEDs provide level indication
depending on current. The LEDs appear dimmed for 4 mA and bright for 20 mA.
Figure 21 Analog Outputs