Zhone IMA CS-200 System Spezifikationen Seite 251

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Reference Guide 6-51
WAN Card PARS Screen
6.4.7 Normal Operation - No Link Failure
Any of the WAN lines in a cross-connect integrated access device can be assigned to PARS
mode. Once a WAN (W1-1 for example) is assigned to PARS mode, the other WAN of that
card (i.e. W1-2) will be assigned to PARS by the system and will not be available to the user.
The user assigned WAN will become primary and the system assigned WAN will become the
secondary. The WAN line time slots must be unassigned (and free prior to PARS mode
configuration). Otherwise, the system will not accept the PARS mode. When W1-1 is assigned
to PARS mode, the system will cross-connect all its time slots to the W1-2 time slots. This is
illustrated in Figure 6-41. Figure 6-42 show user card termination in PARS mode.
Figure 6-41. PARS Time slot Cross-connection between Primary and Secondary WANs
RX
W1-1
TX
TX
W1-2
RX
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