Page 6-111
Programming
INTER-TEL
®
AXXESS
®
MANUAL VERSION 11.0 – May 2008
Cabinets
PROGRAMMING
6
• CPU020-Q/PCM-F (CPU 512 Master): This combination can be used as the “master”
CPU in a triple- or quad-chassis system. The PCM-F provides the connectors for the
fiber-optic cable that connects the “master” CPU to the “slave” CPU. It can also be used
in place of any of the combinations above.
• CPU020-X/PCM-F (CPU 512 Slave): This combination is used only in the “slave”
chassis in a triple- or quad-chassis system. The PCM-F provides the connectors for the
fiber-optic cable that connects the “master” CPU to the “slave” CPU.
• CPU020/PCM/EAC and NT- or 2000-based CPU: This CPU is designed to support
heavily loaded systems with high call traffic. The call processing software has been
moved from the CPU to a Windows NT or 2000 Call Processing (CP) Server that com-
municates with the System via a 10Base-T Ethernet connection. For more information
about this special CPU, see Appendix C — CP Server.
NOTE: A 512 or higher system requires a CP Server to run version 8.0 or later.
• CPU020/PCMA and CP Server: This CPU is designed to work with an ATM Switch
which supports large capacity systems consisting of up to eight chassis and 1792
devices. The call processing software has been moved to Windows 2000 CP Server that
communicates with the System via the ATM Switch. For more information about this
special CPU, see Appendix C — CP Server.
NOTE: When choosing the CPU types for use in a network, consider the number of devices
the CPU type will need to communicate with, both on the local node as well as on remote
nodes. The more devices it must handle, the more powerful the CPU type must be. For exam-
ple, although the CPU020-Q/PCM-F can support a fully loaded quad-chassis system, it may
slow down if it has to support four chassis and off-node devices. For optimum performance in a
network, the nodes should not be filled to maximum capacity and they should use the most
powerful CPU types.
3.5 See SPECIFICATIONS and INSTALLATION for further information regarding the
CPU type selection.
3.6 When changing the card type for equipped slots, existing circuits must first be reconfig-
ured. Failure to redefine the associated circuits before inserting another type of interface card
of a different device type will produce an error message.
3.7 If multiple OPCs, T1Cs, T1/PRI, E1/PRI, T1/E1/PRIs, and/or DKSC-16s are installed
in expanded chassis, resource blocking can be prevented by splitting the cards between the
cardfiles and/or installing them in the same cardfile as the LGCs or LSCs. In tri-/quad-chassis
installations, the master T1C or E1C (if one exists) should be located in the master dual-chas-
sis.
3.8 The fields used in Cabinet programming include the following. They are described in
detail in the following pages.
• Error Thresholds (see page 6-112)
• Reference Clock List (see page 6-112)
• Resources (see page 6-113)
• Sockets (see page 6-114)
• Circuit Cards (see page 6-114)
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