Avaya Definity SI Maintenance Manual page 1490

Maintenance Object Repair Procedures
Table 10-258
Table 10-258. ICC signals from the Duplication Interface circuit pack
Lead
Tone-Clock
SPE Select Switch State
Emergency Transfer
Without the ICC properly attached, the system cannot function as a High or
Critical Reliability system.
Changing SAT terminal connections
Duplication Interface circuit pack A controls and monitors the same environment
leads that the Maintenance/Tape Processor does in a PPN a system without High
or Critical Reliability. Duplication Interface circuit pack A also supports the serial
channel to the PPN administration terminal in a High or Critical reliability PPN.
The administration terminal connects to Duplication Interface circuit pack A via a
connector on the back of carrier A labeled DOT. At any time, the administration
terminal may be disconnected from Duplication Interface circuit pack A and
connected directly to the active Maintenance/Tape Processor by attaching the
administration terminal to the connector marked TERM on the active carrier. This
connection should only be made if the administration terminal fails to function
since a problem with the Duplication Interface circuit pack A may be present.
Schematic
Figure 10-28 on page 10-705
Interface circuit packs with the rest of the system. The dotted lines in
on page 10-705
implementation of the serial channel. For clarity, the UARTs are not shown. The
following circuit pack abbreviations are used in
DUPINT for Duplication Interface circuit pack
PI for Processor Interface
Net Pkt for Network Controller/Packet Interface
10-704 Issue 4 May 2002
describes 3 of the important ICC connections.
Description
Indicates which Tone-Clock circuit pack is active
Indicates the position of the SPE-select switch
Indicates whether Emergency is on or off in the PPN
cabinet
depicts the interconnection of the Duplication
show the logical serial channel rather than actual physical
Figure 10-28
Figure 10-28 on page 10-705:
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