Allied Telesis AT-iMG634 - R2 Manuel d'utilisateur télécharger pdf (Page 9)

5 UNIT INSTALLATION

In order to be compliant with ITU-T K.21, the following auxiliary protection devices

are required:

1. Primary protection device such as EPCOS B88069X4960T502 must be installed

on the DSL Tip/Ring pair.

2. Primary protection device installed on AC mains to limit surge energy into the

Xavi unit’s PSU to 390V

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Allied Telesis AT-iMG634 - R2 Manuel d'utilisateur Page 9