System information

FCD 901 48

Issue R2A, 07.2009

XMP1 Release 5.5 System Description

Diagnostic Mode

Aastra Proprietary Information Page 5-17

5.10 Diagnostic Mode

In order to startup the ISDSL port module with an LT initiated startup

procedure the diagnostic mode has been established.

The repeater establishes the transmission line even if in downstream

direction no NT or further Repeater is connected. Because this is no normal

operation mode an alarm will be generated to inform the user.

Normally, an SDSL transmission line with several repeaters will be started

after a NT is connected.

If the transmission line is interrupted a user cannot see where the

interruption is located.

If the diagnostic mode is switched on (Configuration with ServiceOn XMP1)

the transmission line will be activated even if no NT is connected. By the

number of detected repeater it is possible to locate the section where the

transmission line is interrupted (see Online Functions -> Link State ->

Current Line State). This function should only be used for diagnostic

purpose because it could lead to conflicts (e.g. simultaneously activation on

the LT and NT side).

Additionally an alarm (Link: Diagnostic mode activated by user) appears in

SOX if the diagnostic mode is activated

iSDSL

Rep.

Port