Rain Bird Pro - WEATHER STATION COMMUNICATION WIRING; DIRECT CONNECTED - USING SHORT HAUL MODEMS: (MODEL PRO-SH - Only); GROUNDING COMMUNICATION CABLE

Weather Station - Model “PRO”
Model “PRO” - Weather Station
Page
13
Nov., 2001
GT27145B Cozz
DBY direct burial connectors. DO
NOT apply power to transformer at this
time.
WEATHER STATION
COMMUNICATION WIRING
DIRECT CONNECTED - USING
SHORT HAUL MODEMS:
(MODEL PRO-SH - Only)
Coming from the Central location,
furnish and install a Belden #9883,
Direct Burial Type, communication
cable over to the weather station
location. The Belden cable shall consist
of three (3) twisted pair of wires (20
Gauge), a bare copper drain wire and an
aluminum shield. The three (3) twisted
pair shall be color coded as follows; 1
pair “black” and “white”, 1 pair “black”
and “green” and 1 pair “black” and
“red”.
The BLACK (-XMT) & GREEN
(+XMT) pair shall be connected to the
BLACK & RED wires respectively, at
the “LINE” end of one of the MSP-1
surge arrestors. The BLACK (-XMT)
and the RED (+XMT) wires from the
“EQUIPMENT” end of this MSP-1
surge arrestor shall be connected to the
WHITE (-XMT) and the GREEN
(+XMT) wires of the communication
cable furnished with the weather station
and marked P/N 9720 “ET SHORT
HAUL” “COMM”.
The RED (+RCV) & BLACK (-RCV)
pair shall be connected to the RED &
BLACK wires respectively, at the
“LINE” end of the other MSP-1 surge
arrestor. The RED (+RCV) and the
BLACK (-RCV) wires from the
“EQUIPMENT” end of this MSP-1
surge arrestor shall be connected to the
RED (+RCV) and the BLACK (-RCV)
wires of the communication cable
furnished with the weather station and
marked P/N 9720 “ET SHORT HAUL”
“COMM”.
This communication cable shall be
routed through the 1 ½” diameter long
sweep elbow to the base of the weather
station. All wire connections and
splices in the communication wiring
shall be made using 3-M DBY direct
burial connectors. DO NOT attempt to
use any other type connectors as
communication signal may be impaired
and poor communication resulting.
GROUNDING
COMMUNICATION CABLE
The bare copper drain wire of the Belden
cable shall be grounded to the grounding
rod, using a brass ground wire clamp.
IMPORTANT ! DO NOT ground the
drain wire at the Central end of the cable
- just leave the drain wire un-used.