Grounding - Avaya 4600 Series Installation Manual

IP Office Installation
G rounding
2 6 B
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.
It is recommended that all IP Office modules are connected to a functional ground. In some cases, such
as ground start trunks, this is a functional requirement. In other cases it may be a locale regulatory
requirement and or a necessary protective step, for example areas of high lightning risk.
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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.
Installation Requirements
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Mandatory Grounding
The IP Office system must be grounding in the following situations:
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Where required by local regulatory requirements.
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On all Analog Expansion modules (ATM16) and any control units containing an analog
trunk card (ATM4/ATM4U).
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On any control unit using coaxial E1R2 trunks.
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On Digital Station V2 and Phone V2 expansion modules.
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Mandatory Ground plus additional protective equipment
Additional equipment will be required in the following situations. Refer to Out of Building
Telephone Installations.
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On any Digital Station or Phones expansion module connected to an extension located in
another building.
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On all Analog Expansion modules (ATM16) and any control units containing an analog
trunk card (ATM4/ATM4U) in the Republic of South Africa.
•
Optional Grounding
The uses of grounding connections for scenarios other than those listed above is optional but is
recommended.
Installation Manual
IP Office 3.2 15-601042 Issue 14b (13th November 2007)
Page 28