WS PRO LT weather station
11
2.6
Communication Wiring Setup for Direct Connect Weather Stations
1.
Furnish
and
install
a
Belden
#9883
Direct
Burial
Type,
communication
cable
between
the
weather
station
and
the
central
control
computer
(not
to
exceed
20,000
ft.
/
3.8
miles
with
the
specified
20
AWG
Belden
#9883
cable).
Note:
The
Belden
cable
should
consist
of
three
(3)
twisted
pairs
of
wires
(20
gauge),
a
bare
copper
drain
wire
and
an
aluminum
shield.
The
three
(3)
twisted
pairs
shall
be
color
coded
as
follows:
one
(1)
black
and
green
pair,
one
(1)
black
and
red
pair,
and
one
(1)
black
and
white
pair.
The
black
and
white
pair
shall
not
be
used,
but
kept
as
a
spare
pair.
At
the
weather
station…
2.
Connect
the
Black
(
‐
xmt)
and
Green
(+xmt)
pair
of
wires
(of
the
communication
cable)
to
the
Black
and
Red
wires
respectively
on
the
“Field”
end
of
the
first
MSP
‐
1.
3.
Connect
the
Black
and
Red
wires
on
the
“Equipment”
end
of
the
first
MSP
‐
1
to
the
White
(
‐
xmt)
and
Green
(+xmt)
wires
of
the
cable
(9720)
furnished
with
the
weather
station.
4.
Connect
the
Red
(+rcv)
and
Black
(
‐
rcv)
pair
of
wires
(of
the
communication
cable)
to
the
Red
and
Black
wires
respectively
on
the
“Field”
end
of
the
second
MSP
‐
1.
5.
Connect
the
Red
and
Black
wires
on
the
“Equipment”
end
of
the
second
MSP
‐
1
to
the
Red
(+rcv)
and
Black
(
‐
rcv)
wires
of
the
cable
(9720)
furnished
with
the
weather
station.
Communication
Wire
from
Central
Communication
Wire
at
Weather
Station
Black
(
‐
xmt)
Green
(+xmt)
Red
(+rcv)
Black
(
‐
rcv)
Black
Red
Red
Black
FIELD
FIELD
MSP
‐
1
MSP
‐
1
EQUIP
EQUIP
Black
Red
Red
Black
White(
‐
xmt)
Green(+xmt)
Red
(+rcv)
Black
(
‐
rcv
)
FIGURE
10
Communication
wiring
at
weather
station
