USB Device: Micro-B device for computer connectivity
CS I/O: 9-pin D-sub connector to interface with Campbell Scientific CS I/O peripherals.
0 – 5 V Serial (U1 to U12, C1 to C4): Eight independent TX/RX pairs
SDI-12 (C1, C3, U1, U3, U5, U7, U9, U11): Eight independent SDI-12 compliant terminals are
individually configured and meet SDI-12 Standard v 1.4.
RS-485 (C1 to C4): One full duplex or two half duplex
RS-232/CPI: Single RJ45 module port that can operate in one of two modes: CPI or RS-232. CPI
interfaces with Campbell Scientific CDM measurement peripherals and sensors. RS-232 connects,
with an adapter cable, to computer, sensor, or communications devices serially.
CPI:One CPI bus. Up to 1 Mbps data rate. Synchronization of devices to 5 μS. Total cable length
up to 610 m (2000 ft). Up to 20 devices. CPI is a proprietary interface for communications
between Campbell Scientific data loggers and Campbell Scientific CDM peripheral devices. It
consists of a physical layer definition and a data protocol.
Antenna Connection:
l Wi-Fi
l SS 900 MHz
l 2.4 GHz
Wireless: Wi-Fi, VHF, UHF, spread spectrum, ELOS
Hardwired:Multi-drop, short haul, RS-232, fiber optic
Satellite: GOES, Argos, Inmarsat Hughes, Irridium
11.8.1 Wi-Fi option specifications
WLAN (Wi-Fi) (CR6-WIFI only)
Maximum Possible Over-the-Air Data Rates: <11 Mbps over 802.11b, <54 Mbps over 802.11g, <72
Mbps over 802.11n
Operating Frequency: 2.4 GHz, 20 MHz bandwidth
Antenna Connector: Reverse Polarity SMA (RPSMA)
Antenna (shipped with data logger): Unity gain (0 dBd), 1/2 wave whip, omnidirectional. Features
an articulating knuckle joint that can be oriented vertically or at right angles
Supported Technologies: 802.11 b/g/n, WPA/WPA2-Personal, WPA/WPA2-Enterprise Security,
WEP
Client Mode: WPA/WPA2-Personal and Enterprise, WEP
Access Point Mode: WPA2-Personal
11. CR6 Specifications 225
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