Campbell Scientific AL200 ALERT2 Encoder, Modulator, and Sensor Interface - Manual (Page 14)

AL200 ALERT2 Encoder, Modulator, and Sensor Interface
Switched Voltage (SW12V)
Voltage supply switched on prior to operational sensor scan
Thermal fuse hold current = 900 mA @ 20°C, 630 mA @ 50°C,
450 mA @ 70°C
GPS
SMA Female
50 Ω input impedance
Active antenna design, 3.3 Vdc
25 dBm maximum input
Integrated SAW filtering and jam resistance
1 second time-to-fix during normal operation
35 second time-to-fix on power up or reboot
13 min for leap second, once per day auto
PPS ± 1 usec to full UTC second
Receive sensitivity –161 dBm
Timekeeping
GPS disciplined to ± 1 µS
Drift ± 170 ms per day with 40°C temperature change (w/o GPS sync)
Compliance
RoHs
CE
IEC61000-4 ESD
7. Installation
7.1 Configuring the AL200
The AL200 is configured via the USB port using the Device Configuration
Utility.
It is important to have an understanding of the network that the AL200 will be
used in. There are many settings that are used to configure when and how the
AL200 will report data in the time division multiple access (TDMA) scheme.
Incorrect settings can cause channel contention and may result in lost data.
The device driver for the AL200 must be installed on your
computer before you can connect to the AL200 via USB. See
Appendix E, AL200 USB Driver Installation Instructions, for
instructions on installing the device driver.
1. Connect the supplied USB cable between a USB port on your computer
and the USB port on the AL200. The AL200 will be powered over the
USB for configuration only. The AL200 will not turn on an attached radio
and transmit while powered over the USB port.
2. Open Device Configuration Utility.
NOTE
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