Nortel Meridian 1 Administration And Maintenance page 283

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Chapter 6 — ISDN BRI trunk implementation

Note: Observe the LED on the faceplate of the MISP while performing

the next step.

Insert the MISP into the selected card slot and lock it in place.

The LED should light, flash three times then remain lit to indicate

that the MISP is operating correctly but is not configured and

The LED should light, flash three times then extinguish to indicate that

the MISP is operating correctly and is configured and enabled.

Any other LED indication suggests a defective MISP circuit card.

Note: The Flash ROM can become corrupted if loss of power occurs

during programming of the Flash ROM. If this occurs, the Flash ROM

will automatically be re-initialized when the MISP is installed (powered

up). This operation will delay the completion of the self-test, and it will

take five minutes for the LED to flash three times.

Repeat the steps of this procedure for each MISP being installed.

ISDN BRI Administration and Maintenance

Page 269 of 492

Troubleshooting