Nortel Networks 5000i - Manual (Page 25)

Ground-To-Neutral Specifications{ XE "Conductor:Specifications,
ground-to-neutral" \t "See" }{ XE "Voltage:Ground-to-neutral" }
With circuit power turned off, the resistance between the circuit neutral conductor{ XE
"Conductor:Neutral" }{ XE "Neutral conductor" \t "See Conductor, neutral" } and the isolated
ground conductor must be less than 2.1 ohms.
With circuit power on and all 5000i system components unplugged, the voltage between the
circuit neutral conductor and the isolated ground conductor must be less than 0.6 VAC.
Chapter 2. Scanner Installation Page 13