Specifications
Model No.
Running Head
System Cards
CPU XCON (8803)
The 8803 CPU XCON supports complex applications requiring more than two WAN ports and
the ability to cross-connect DS0s between WANs. The 8803 supports up to four WAN Cards
for a total of eight T1 or E1 WAN ports and has a built-in cross-connect module. A system that
uses an 8803 CPU Card operates in “cross-connect” mode. Two Model 8803 CPUs can be
installed in slots C1 and C2 to achieve CPU redundancy. The 8803 also supports 1xN WAN
redundancy.
The CPU XCON Card controls the integrated access system. It performs the following
functions:
•
Initializes the system upon power-up and tests all installed cards.
•
Polls all cards in the system every half second to determine operating status.
•
Processes all incoming operator commands and displays the responses in a series of
operator interface screens for each card in the system via a local VT-100 terminal, remote
computer, or network management system.
•
Includes circuitry that allows cross-connection of DS0 time slots between T1 and E1 lines
connected to the system WAN cards.
•
Includes a test pattern generator for T1 and E1 line test purposes.
•
Performs primary CPU arbitration and redundancy if so supplied.