Requirements for European Operation

The creepage distances apply to the normal office environment. When the local environment within the host chassis is subject to conductive pollution or dry nonconductive pollution that could become conductive due to condensation, the creepage distances shown in parentheses in Table D-15 apply.

The clearance and creepage distance between adjacent points should be checked as follows:

The clearance distance (X) is the shortest distance between two points measured through the air.

The creepage distance (Y) is the shortest distance between two points measured across a surface.

If in doubt about calculating these distances, obtain advice from a competent telecommunications safety engineer. Failure to install the ISDN BRI or serial adapter module according to these instructions invalidates the conditions of the BABT General Approval agreement.

114200-E Rev 00

D-15

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Nortel Networks Passport ARN Routers manual Requirements for European Operation