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2.0 Mb DTI/PRI Administration and Maintenance Guide Book ... - Home

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Page 950 of 1536 Chapter 7 — <strong>DTI</strong> <strong>Maintenance</strong><br />

Figure 127<br />

Near End Trunk Loopback<br />

Far End Trunk loopback test<br />

The far end trunk loopback test checks the integrity of the 2 <strong>Mb</strong> link from the<br />

far end to the carrier interface of the 2 <strong>Mb</strong> <strong>DTI</strong> (it does not test the 2 <strong>Mb</strong> <strong>DTI</strong><br />

card). Either a per-loop or per channel test may be run, with the near end<br />

device placed in the respective mode of remote loopback. The procedures for<br />

per-loop loopback tests follow:<br />

553-3011-315 St<strong>and</strong>ard 10.0 May 1999<br />

NEAR END FAR END<br />

Option 11<br />

NTAK10<br />

RMST L (per loop— loop<br />

disabled)orRMST L CH (per<br />

channel—channel disabled)<br />

Far End Switch<br />

Placed in remote loopback<br />

(per loopÿ or per channel)<br />

Procedure: near-end Overlay Comm<strong>and</strong><br />

Disable the 2 <strong>Mb</strong> <strong>DTI</strong> card LD 60 DISL L<br />

Place the 2 <strong>Mb</strong> <strong>DTI</strong> card in<br />

remote per-loop loopback<br />

LD60 RLBK L<br />

Have a technician at the far end run a per-loop loopback test

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