User manual
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Cooper Bussmann 615M-1 Cellular Data Modem and IP Router Series Manual
Rev Version 1.0
Symbol Parameter Min Typ Max Units
RPU Pull Up Resistance 18.2 kΩ
RPD Pull Down Resistance 100 Ω
Analog Inputs
VIN Analog Voltage Recommended Input Range 0 30 V
Accuracy +/- 0.2 V
Relays
VDiff
Recommended Differential Voltage Range Between NO and
COM Terminals
-30 30 V
ISwitch Switching Current 1 A
RInitial Initial Contact Resistance 100 mΩ
ROpen Pass Through Resistance when Contacts are Open. 1000 kΩ
Expected Life 1A, 30VDC, 20 Cycles per Minute 105 Cycles
8.1 Circuit for Analog Inputs
Figure 43 Circuit for Analog Inputs
8.2 Simplified Circuit for Digital Input/Outputs
Figure 44 Circuit for Digital Inputs/Outputs