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Accessories that Extend Telephone Range
You may have to provide a voice terminal power supply for a voice terminal
located more than 1000 feet from the control unit. In such cases, you’ll need a
power supply kit that allows you to double the range of the wiring run from
the control unit to the voice terminal. See Figure 34.
If you place a voice terminal in another building outside of the main building,
but within 1000 feet of the MERLIN Plus system control unit, the voice
terminal becomes an In-Range, Out-of-Building (IROB) voice terminal. You
must use two Model 341 IROB protectors to protect the control unit and the
IROB voice terminal from lightning, contact with power lines, or power
currents induced by power lines. You must place one IROB protector where
the cable from the control unit leaves the building, and place the other where
the cable enters the building in which the IROB voice terminal is located. See
Figure 35.
See Section 5, "Reference," in the System Manual for more information on
installing and operating power accessories.
FIGURE 34 A MERLIN Plus system voice terminal power supply kit.
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Step 5: Adding Accessories