3 cellular transceivers, Cellular transceivers, 8. com220 modem with surge protector – Campbell Scientific UT10 10 foot Tower w/ Grounding Kit and Hinged Base User Manual
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UT10 Weather Station
FIGURE 8-8. COM220 Modem with Surge Protector
8.3.3 Cellular Transceivers
Campbell Scientific offers two digital cellular modems — the RavenXTV
CDMA modem and the RavenXTG GPRS modem. Refer to our product
brochure for information on choosing the right cellular modem for your
weather station.
Mount the digital cellular modem in the enclosure by doing the following
steps:
1. Mount the modem to the enclosure backplate using the hardware provided
in pn 14394, Mounting Kit.
2. Connect the modem to the datalogger’s CS I/O port via the SC105 or
SC932A interface or connect the modem to the datalogger’s RS-232 port
via pn 18663, Null Modem Cable.
3. Mount the cellular antenna on a grounded mast, positioning it to point
toward the nearest cellular tower, with the radiating elements oriented
vertically. Route the coaxial cable into the enclosure through the wiring
port and connect it to the cellular transceiver’s coaxial connector. Provide
strain relief for the cable on the left side of the enclosure with a cable tie
and tab.
23
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