DAVIS Alarm Output Module - Manual (Page 12)

Page 12 Alarm Output Module
AOM Connections for Radio Power-Conserving Options
For power conservation when using a solar-battery-powered wireless Weather-
Link, the AOM is used to switch radio power ON for only brief intervals. Make
the connections for this case as follows:
1. Insert the jumper wire for output D (at J5) into pin jack 13 (at J3).
2. Connect the yellow wire from the Solar Power Kit to the D+ terminal (at jumper block
J4). Connect the green wire to D-.
3. Strip approximately 5/16” (8 mm) of insulation from the yellow and green wires, and
insert at B3 (To Switch) on the regulator circuit. (Consult the Solar Power Kit manual
for more details.)
Insert the yellow wire into the terminal labeled “Yel.” Insert the green wire
into the terminal labeled “Grn.”
4. Strip approximately 5/16” (8 mm) of insulation from wires in the radio’s power cable,
and insert at B4 (Switched Power) on the regulator circuit.
Insert the wire with the white stripe into the terminal labeled “Wht.” Insert
the black wire (no stripe) into the terminal labeled “Blk.”
Connecting the AOM to the System and Powering the AOM
The AOM may be connected to either the sensor interface module (SIM) or the
interface cable adapter module (ICAM), depending on your installation. (See
“Typical AOM Installations” on page 3 for illustrations.)A 2’ (0.6 m) AOM
cable is provided to make this connection. You may also use a 40’ (12 m) stan-
dard 6-conductor cable (available from Davis Instruments). The maximum
cable length for this connection is 40 feet (12 m).
1. Using the label sheets provided with your station, attach one of the S6/ALARM/A1
labels onto each end of the AOM cable.
Make sure the S6 end of the label is closer to one end of the cable and the A1
end of the label is closer to other end of the cable.
2. Attach the S6 end of the AOM cable to connector S6 on the SIM or the ICAM.
3. Attach the A1 end of the AOM cable to connector A1 on the AOM.
4. Attach one of the A2/ALARM POWER/P1 labels onto the end of the AC-power adapter
cable or the power Y-cable, depending on which you are using (see “Powering the
AOM” below).
5. Attach the jack at the end of your power source to connector A2 on the AOM.
6. Gather the AOM cable and the power cable together and secure them to the cable tie
lug using a cable tie.
When tightening the cable tie, make sure the cables are on top of the lug.