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PR-MAINT (Maintenance Processor)
Issue 5 October 2002
1509
555-233-119
PR-MAINT (Maintenance Processor)
NOTE:
For systems with a TN790 Processor Circuit Pack use maintenance object
PR-MAINT (Maintenance Processor TN790 RISC Systems).
The TN786B Processor circuit pack is comprised of the 80386 Processor
(PROCR), the Maintenance Processor (PR-MAINT), and the Memory
(MEMORY). On the TN786B circuit pack, PR-MAINT is responsible for monitoring
the sanity of the 80386 Processor.
The major difference between the two circuit packs is that on the TN786B circuit
pack, there is no tape for PR-MAINT to control and Memory is on the circuit pack.
The rest of the functionality is the same. On both circuit packs, PR-MAINT
contains the hardware required for controlling the environmental conditions. The
Maintenance/Tape Processor provides the serial interfaces for the administration
terminal and CDR ports. The Maintenance/Tape Processor also provides the
communications interface to INADS for alarm reporting and remote maintenance
capability.
!
WARNING:
If the TN786B circuit pack must be replaced, and if there is a blank in the
Expansion Memory circuit pack slot (that is, in the slot immediately to the
right of the TN786B circuit pack), remove the blank before removing the
circuit pack. Otherwise, the circuit pack and/or the two connectors that are
used to connect the Expansion Memory circuit pack (if available) might
become damaged.
MO Name (in
Alarm Log)
Alarm
Level Initial Command to Run Full Name of MO
PR-MAINT MIN test processor a/b sh/l Maintenance/Tape Processor
1
1. The full Name of the MO in a 386 system is Maintenance Processor.