ISDN ANALYZER D1080 - messkom.de

USER’S MANUAL REV. 5 ISDN ANALYZER D1080
to another instrument or remote loop box. The maximum
number of calls corresponds to the number of outgoing
channels available in the user connection.
In the latter case, the remote instrument must be configured with
the same profile as the local instrument, or the ALL ACCEPTED
value must be set in the CallRx field of the SETTING UP menu.
There are various procedures to activate the remote loop:
by sending the “0000” value in the called SUBADDRESS field.
by sending adequate values in the USER-TO-USER field of the
SETUP or CONNECT messages.
The instrument allows for managing both procedures for the
modification of the USER-TO-USER field (see Chapter 6).
During the test the instrument checks the calls and supplies
information about their progress.
! If a specific B channel is set in the CanRich field of
the SETTING UP menu, this channel is used as
starting channel for the first call of the cycle. The
other calls of the cycle will progressively request
the remaining channels (see Chapter 6).
The instrument supplies information about the state of the call
with level 3 messages, such as SETUP, ALERTING, CONNECT,
RELEASE and DISCONNECT , indicating the cause for the last two
messages.
The instrument memorizes the number of failed cycles, the time
and the cause of the event. “Failed cycle” means that the
CHAPTER 12. SDN TERMINAL SIMULATOR 157