Black Box ASD-4 - Page 22

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CHAPTER 3: Installation
Figure 3-5. The ASD-4 installed in a two-line system with a two-
line phone and a two-line TAD.
Two-Line
Phone
Power
Supply
LINE-IN
Port
PHONE
Port
Three-Way
Adapter
Plugged
into
Wall Jack
Three-
Way
Adapter
L1
L1
L1 + L2
L2
L2
Two-Line
Answering
Machine