Don't think so guys. Avayas instructions for grounding has been consistent through the years. There are two grounds. A protective and a functional ground. The ground plug performs functional ground and the chassis ground performs the protective ground. Functional is from a earth grounded power panel while the prime choice for protective ground is building steel. You can google both grounds to see that Avayas text is consistent with NEC. Also NEC has moved away from cold water pipe for ground since the pipe may not be copper along the entire length.
IPO:
Grounding (IP500): 2013
Use of ground connections reduces the likelihood of problems in most telephony and data systems. This is especially important in buildings where multiple items of equipment are interconnected using long cable runs, for example phone and data networks.
All IP Office control units and external expansion modules must be connected to a functional ground. Where the unit is connected to a power outlet using a power cord with an earth lead, the power outlet must be connected to a protective earth.
In some cases, such as ground start trunks, in addition to being a protective measure this is a functional requirement for the equipment to operate. In other cases it may be a locale regulatory requirement and or a necessary protective step, for example areas of high lightning risk.
WARNING
During installation do not assume that ground points are correctly connected to ground. Test ground points before relying on them to ground connected equipment.
The ground point on IP Office control units and expansion modules are marked with a or symbol. Ground connections to these points should use a 14 AWG solid wire with either a green sleeve for a functional ground or green and yellow sleeve for a protective ground.
Merlin Legend: 1998
Approved Grounds
Approved grounds are listed below, in order of preference:
1. Building Steel. The most preferred ground.
2. Acceptable Water Pipe. Must be a metal, not plastic or vinyl,
underground water pipe at least ½ in. (1.27 cm) in diameter, and
in direct contact with the earth for at least 10 ft. (3 m).
It must be electrically continuous so that the protector ground is
uninterrupted. (Check for insulated joints, plastic pipe, and plastic
water meters that might interrupt electrical continuity.)
A metallic underground water pipe must be supplemented by the
metal frame of the building, a concrete-encased ground, or a
ground ring. If these grounds are not available, the water pipe
ground can be supplemented by one of the following types of
grounds:
— Other local metal underground systems or structures, such
as tanks and piping systems, but not gas pipes
— Rod and pipe electrodes, a 5/8-in. (1.58-cm) solid rod or
¼-in. (0.63-cm) conduit or pipe electrode driven to a
minimum depth of 8 ft. (244 cm)
— Plate electrode, a minimum of 2 square ft. (61 square cm)
of metallic surface exposed to the exterior soil
3. Concrete-Encased Ground. Must be an electrode, consisting of
one of the following:
— At least 20 ft. (6.1 m) of one or more steel reinforcing rods,
each at least ½ in. (1.27 cm) in diameter
— 20 ft. (6.1 m) of bare copper conductor not smaller than #4
AWG, encased in 2 in. (5 cm) of concrete
NOTE:
This electrode must be located within and near the
bottom of a concrete foundation or footing that is in
direct contact with the earth
— Ground ring, consisting of at least 20 ft. (6.1 m) of bare
copper conductor (not smaller than #2 AWG) encircling the
building. The ground ring must be in direct contact with the
earth and buried at least 2.5 ft. (77 cm) below the earth’s
surface.
! WARNING:
Do not use a metal underground gas piping system - this is a
safety risk.