User`s guide

Section 360−381−S02
13
Parameter DescriptionPossible Choices
Operation Mode Normal Mode Normal T1, or when used with the secondary T1 card allows
for Drop and Insert applications.
Dual T1 Mode When used with a secondary T1 card, the two T1s function as
two independent T1s
Protection Mode When used with a secondary T1 card, allows the secondary T1
to be protection for the primary T1.
Status Protection mode only — indicates which T1 is currently in op-
eration.
5.1.1. Error Second Threshold (protection mode only)
Select Settings " Error Second Threshold to open the error second threshold dialog box.
Use this dialog box to get or set the threshold that determines when the system will switch from the Primary to
the Secondary T1.
Once you have finished, click Close.
Figure 6. Error Second Threshold
5.2 Set Secondary T1 Parameter
Select Settings"Set T1 Parameter to open the secondary T1 card (ST1U) parameter settings.
Once you have finished configuring the card, click OK to activate the new settings, and click Close to close the
dialog box. To cancel changes without saving, click Close.
Figure 7. T1 Parameter Settings