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Switch Fabric and V6.2 Controllers
Switch Fabric Setup
3-12
Xedge 6000 Hardware
032R440-000
Installation & Setup Guide
Issue 17
Special Considerations
•
Setting Priority Mode (J1)
For normal operation, set JP1 to the upper position (High Mode) to ensure the high priority cells
are always sent before low priority cells. Be aware that if most of the traffic is high priority, the
low priority cells may never get delivered because there will always be high priority cells to
process. In this situation, set JP1 to the lower position (High/Low Mode) to ensure that cells in
both queues are processed alternately.
•
Setting LED Display (J2)
JP2 enables or disables the flashing TX/RX LEDs when cells are transmitted or received.
For normal operation, set JP2 to the upper position (pins 1-2 jumpered) to enable LEDs to flash
only when the XM module is in service.
Table 3-6
XM Switch Fabric Jumper Settings
Jumper
Position
Setting
Description
JP1
Upper
High
Mode
High priority cells have preference over low priority cells. Cells
in the low priority queue are only sent when the high priority
queue is empty. (Normal operation)
Lower
High/Low
Mode
Low priority cells and high priority cells are equal.
Both queues are examined alternately.
JP2
Upper
RX/TX LEDs flash only when the module is in-service. (Normal operation)
Lower
RX/TX LEDs are always off.
No jumper
RX/TX LEDs will flash if the module is in-service and out-of-service