Section 5. System Overview
conditions, and to minimize the error associated with the measurement of
underpowered sensors. See section Power Supplies — Overview
(p. 85).
• 5V terminals: regulated 5 Vdc at 300 mA. The 5 Vdc supply is regulated to
within a few millivolts of 5 Vdc so long as the main power supply for the
CR1000 does not drop below <MinPwrSupplyVolts>.
5.3.2.5 Communication Ports
Read More See sections RS-232 and TTL (p. 362), Data Retrieval and
Telecommunications — Details (p. 391), and PakBus — Overview (p. 88).
The CR1000 is equipped with hardware ports that allow communication with
other devices and networks, such as:
• PC
• Smart sensors
• Modbus and DNP3 networks
• Ethernet
• Modems
• Campbell Scientific PakBus networks
• Other Campbell Scientific dataloggers
• Campbell Scientific datalogger peripherals
Communication ports include:
• CS I/O
• RS-232
•
• SDI-12
• SDM
• CPI (requires a peripheral device)
• Ethernet (requires a peripheral device)
• Peripheral Port — supports Ethernet and CompactFlash memory card
modules
5.3.2.5.1 CS I/O Port
Read More See the appendix Serial Port Pinouts (p. 633).
• One nine-pin port, labeled CS I/O, for communicating with a PC or modem
through Campbell Scientific communication interfaces, modems, or
peripherals. CS I/O telecommunication interfaces are listed in the appendix
Serial I/O Modules List
(p. 646).
Note CS I/O communications normally operate well over only a few feet of serial
cable.
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