Campbell Scientific CR6 CR6 Measurement and Control System - Page 81
Measurement and Control Peripherals - Overview, Power Supplies - Overview
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Section 5. System Overview 5.2.4 Measurement and Control Peripherals - Overview Reading List: • Measurement and Control Peripherals - Overview (p. 81) • Measurement and Control Peripherals - Details (p. 369) • Measurement and Control Peripherals - Lists (p. 595) Modules are available from Campbell Scientific to expand the number of terminals on the CR6. These include: Multiplexers Multiplexers increase the input capacity of terminals configured for analog-input, and the output capacity of terminals configured for excitation. SDM Devices Serial Device for Measurement expand the input and output capacity of the CR6. These devices connect to the CR6 through one set of three U or C terminals configured as an SDM port.. CDM Devices Campbell Distributed Modules are a growing line of measurement and control modules that use the higher speed CAN Peripheral Interface (CPI) bus technology. These connect through the CPI RJ45 connector. 5.2.5 Power Supplies - Overview Reading List: • Power Supplies - Specifications (p. 100) • Power Supplies - Quickstart (p. 38) • Power Supplies - Overview (p. 81) • Power Supplies - Details (p. 104) • Power Supplies - Troubleshooting • Power Supplies - Lists (p. 607) The CR6 is fully operable with power from 10 to 16 Vdc applied to the -BAT+ terminals, or 16 to 32 Vdc applied to the -CHG+ terminals. Both sets of connectors are found on the green power plug in the upper right portion of the face of the wiring panel. Some functions, such as programming, the setting of settings, and analog measurement, are provided when 5 Vdc is supplied through the USB connection between the micro-B USB port and a PC. The CR6 is internally protected against accidental polarity reversal on the power inputs. The CR6 has a modest-input power requirement. For example, in low-power applications, it can operate for several months on non-rechargeable batteries. Power systems for longer-term remote applications typically consist of a charging source, a charge controller, and a rechargeable battery. When ac line power is available, a Vac-to-Vdc wall adapter, the on-board charging regulator, and a 81
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