Avaya IP500 V2 Operations Instructions download pdf (Page 45)

Installing IP500/IP500 V2 Page 45

15-601042 Issue 28g (11 October 2013)IP Office 9.0

System Overview: Power Supplies and Cables

1.10.6 Lightning Protection/Out-of-Building Connections

The following are the only supported scenarios in which wired extensions and devices outside the main building can be

connected to the IP Office system. In these scenarios, additional protection, in the form of protective grounding and

surge protectors, must be fitted.

· WARNING

The fitting of additional protection does not remove the risk of damage. It merely reduces the chances of

damage.

· Cables of different types, for example trunk lines, phone extensions, ground and power connections, should be

kept separate.

· All cabling between buildings should be enclosed in grounded ducting. Ideally this ducting should be buried.

· A Primary Protection Box must be provided at the point where the cables enter the building. This should be three

point protection (tip, ring and ground). Typically this would be gas tube protection provided by the local telephone

company. The ground wire must be thick enough to handle all the lines being affected by indirect strike at the

same time.

Connection Type

Protection Device Type

Requirement

Analog Phone Extensions

Phones External expansion

module (POT or PHONE )

ports only.

IP Office Barrier Box

Supports a single connection.

Maximum of 16 on any expansion

module.

· Connection from the expansion module to the

phone must be via a surge protector at each end

and via the primary protection point in each

building.

· The IP Office external expansion modules, control

unit and IROB devices must be connected to the

protective ground point in their building.

· The between building connection must be via

earthed ducting, preferable underground. The

cable must not be exposed externally at any point.

DS Phone Extensions

ITWLinx towerMAX DS/2

Supports up to 4 connections.

This device was previously

referred to as the Avaya 146E.

TCM Phone Extensions

None

Currently not supported.

Analog Trunks

ITWLinx towerMAX CO/4x4

Supports up to 4 two-wire lines.

This device was previously

referred to as the Avaya 146C.

For installations in the Republic of South Africa, the

fitting of surge protection on analog trunks is a

requirement.

For other locations where the risk of lightning strikes

is felt to be high, additional protection of incoming

analog trunks is recommended.

External Output Switch

ITWLinx towerMAX SCL/8

This device was previously

referred to as the Avaya 146G.

Connections from an IP Office Ext O/P port to an

external relay device must be via a surge protector.

The towerMAX range of devices are supplied by ITWLinx (http://www.itwlinx.com).

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Avaya IP500 V2 Operations Instructions Page 45

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