Rain Bird WS-PRO, Инструкция по установке, обслуживанию и устранению неисправностей

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NOTE ! Remember that you have a
“spare” pair of communication wires in
the Belden #9883 cable. Using this
spare pair substitute it for one of the
other pairs and test again. If it is not
this pair that are “bad” then substitute
the “spare” pair for the other pair and
test again. In this way you should be
able to determine which pair are “bad”
and use the “spare” pair in their place.
FIGURE 26 - TEST OF COMMUNICATION WIRE
A “WS-PRO-PH” PHONE
CONNECT WEATHER STATION
Weather Station will not answer.
•
Check the weather station for
operation on it’s own to be sure it is
functioning properly. This will
verify the proper voltage coming into
the weather station and also if the
datalogger checks out O.K.
•
Connect a telephone to the phone
line at the weather station and call
out, or have someone call in.
Listen for any noise on the line.
Refer to NOTE below.
NOTE ! A phone line going to the
computer or to the weather station itself
MUST BE DATA QUALITY . You can
talk over a phone line that will NOT
allow data communication.. Listen for
any fuzzy noises and any disturbance at
all. You must be sure the phone line is
“Good”. Time and time again we have
set up stations and the phone line is
NOT good enough for communication.
Make sure the phone company knows
this will be for data communication.
Have Phone Company check line ALL
the way back to the weather station.
•
If the station is still not answering,
get your volt/ohm meter and measure
across the phone line. It should read
approximately 48 Volts DC, with
the Ring as the positive side and the
Tip the negative side.
•
Have someone call in and then
measure the voltage across the phone
line. It should read 90 to 110 Volts
AC. The answer modem switch
circuit requires 40 Volts to activate
and allow the signal to pass to the
datalogger.
•
The Datalogger detects the ring and
raises the modem enable line high
(pin 5), to +5 Volts DC. (Measure
pin 5 to ground).