Campbell Scientific ET107 Evapotranspiration Monitoring Station - Manual (Page 46)

ET107 Weather Station
FIGURE 2-27. Phone modem mounting and connections (battery not
shown)
2.5.2.1 Internal Installation
If the phone modem was ordered with the ET107, you can skip
this section and go directly to Section 2.5.2.2, External
Installation.
For installation inside the ET Enclosure, the following components are
provided in the phone modem kit:
(1) COM220 Phone Modem
(1) 12 inch RJ-11 Patch Cord
(1) Mounting Bracket
(4) Screws
(1) 12 inch 14 AWG Ground Wire
Install the phone modem as shown in FIGURE 2-27.
1. Attach the modem to the modem bracket with the 2 screws provided.
Mount the modem and bracket into the ET Enclosure with the 3 pre-
threaded screws on the mounting plate.
2. Connect the modem 9-pin port to the ET Enclosure CS I/O port with the
pn 10588 ribbon cable supplied with the ET Enclosure (see FIGURE 2-26
and FIGURE 2-27).
3. Connect the modem RJ-11 jack to the ET Enclosure RJ-11 jack with the
RJ-11 patch cord (see FIGURE 2-27).
4. Connect the modem ground terminal block (GND) to the ET Enclosure
ground with the 14 AWG ground wire.
NOTE
RJ-11 Patch Cord Connects with RJ-11 Jack
10588 Ribbon Cable Ground Wire
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