6.6.10 Sensor verification and clock set 356.7 Communication peripherals 366.7.1 Direct connect to ET107 station 366.7.2 Phone modem 386.7.2.1 Internal installation of phone modem 386.7.2.2 External installation of phone modem 396.7.3 Short-haul modem 396.7.3.1 Internal installation of short haul modem 406.7.3.2 External installation of short haul modem 416.7.4 Radio 426.7.4.1 Example radio configuration and power usage 436.7.4.2 Internal installation of the radio 446.7.4.3 External installation of the radio 456.7.4.4 Base radio installation 516.7.5 ET107 cell phone accessory kit 526.7.5.1 Cellular modems available from Campbell Scientific 526.7.5.2 Power considerations 536.7.5.3 Antenna 536.7.5.4 Establishing cellular service and configuring the cellular modem 536.7.5.5 Internal installation of the cellular modem 536.7.5.6 External installation of a cellular modem 546.7.6 NL241 Wi-Fi accessory kit 566.7.6.1 Antenna 566.7.6.2 Power considerations 566.7.6.3 Internal installation of Wi-Fi modem 566.7.6.4 External installation of the Wi-Fi modem 576.8 Lightning rod installation 586.9 Solar panel installation 606.10 Battery installation 626.11 Restraining cables 636.12 Sealing and desiccating the enclosure 646.13 ET107 software 657. Maintenance and troubleshooting 677.1 Maintenance 677.1.1 Pole maintenance 677.1.2 Power supply maintenance 67Table of Contents - v