ET2000e IRRIGATION CONTROLLER INSTALLATION
®
making
since 1986
ater work
CENTRAL COMMUNICATION
Phone Modem Communications (-M and -M-R options)
When several irrigation controllers are sharing one phone line, they are known as a chain of - M controllers. The
M stands for multiple controller communication system. A modem (MOD-1) and a line amplifier (LA-2), are two
(2) additional pieces of equipment which comprise the system. On units shipping after 1999, the controller when
specified with a -M-R option comes with the MOD-1 and LA-2 Integrated onto the controller board.
The controllers with a - M or - M-R option have a 3 wire (22 AWG) cable. This cable is used to connect the
communication system to the single phone line. Use Paige P-7171-D cable in conduit
to connect one irrigation
controller to the next.
If a Transient Protection Board (TP-1) is used with the irrigation controller, connect the green wire from the line
amplifier (LA-2) pigtail and the - M irrigation controller pigtail to one of the terminals labeled FIELD COMMON on
the board. Connect the yellow wire from both line amplifier and - M pigtails to the terminal labeled SHIELD.
Note:
Older controllers may require a different wiring diagram, contact Calsense at 1-(800)-572-8608 for more
information.
-M-R
Calsense Model
-M-R COMMUNICATION CABLE WIRING DIAGRAM
CHANGE 1 12 March 2007
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