ADC HDSL4 Bedienungsanleitung PDF herunterladen (Seite 38)

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38% of the units returned were found to have been subjected to a power surge. Proper grounding eliminates this

problem.

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38% of the units had no trouble found. This indicates the units may have been optioned incorrectly or were placed

on marginal loops.

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24% of the units returned had a problem with an undersized capacitor. New units come with the correct size

capacitor.

In conclusion:

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Verify grounding connections

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Provide all test results to SSTC to record in WFA/C on OSSCN screen

On the new T200 Low-Voltage HTU-R circuit pack from Adtran, the ground is located on pins 1,11 and 27.

This is compatible with the Troncom mounting that is used, as the ground is on pin 27 of the mounting.

Older Adtran units with a ground on pins 1 or 11 will require an additional connection to pin 27 of the mount-

ing to obtain a good chassis ground.

AT&T Practice ATT-TP-000-000-006

Issue 1, 08/25/06

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ADC HDSL4 Bedienungsanleitung Seite 38