AT&T MERLIN LEGEND Release 3.0 Installation Manual page 40

AC Power and Grounding
If the circuit is properly grounded, the ye
turn on.
the
2 Unplug circuit tester.
Using
a Volt-Ohm Milliammeter (VOM)
Set the VOM to the lowest scale on which you can read 130 V AC.
1
2 Measure the AC outlet voltages. See Figure 2-2.
Phase to ground should be 110 to 125 V AC.
Neutral to ground should be less than 1 V AC.
Phase to neutral should be 110 to 125 V AC.
Figure 2-2. Measuring the AC Outlet Voltages
WARNING:
If the voltage readings do not measure the values required, the AC
outlet is improperly
customer to have a
Neutral
Less than
1.0 Volt AC
wired- do not install the system. Advise the
licensed electrician correct the problem.
low and white lights on the tester
110-125
/ Volts AC\
P h a s e
( H O T )
Ground
Installing the Control Unit 2-9
1 1 0 - 1 2 5
Volts AC