2-13
Chapter 2: Installation
■ External ground terminal
To connect to the external ground terminal, put the cable terminal between the flat
washers.
Only type 300 at
washers can be used.
Flat washer
Figure 2-13. Connection to the external ground terminal
■ Types of electrical wiring
There are two types of electrical wiring, differing based on the purpose of the system.
• Systems that do not use a position signal (two-line connection)
• Systems that use a position signal (four-line connection)
■ Systems that do not use a position signal (two-line connection)
• Be sure to use either the internal or external ground terminal, following local elec-
trical work guidelines when installing.
Figure 2-14. Electrical Wiring for Systems Not Using a Position Signal
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