User Guide

DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Maintenance Object Repair Procedures
Page 10-608DUPINT (Duplication Interface Circuit Pack)
10
NOTE:
The ICC carries the following leads and their respective information:
Tone-Clock select lead that indicates which Tone-Clock circuit pack is
active; SPE Select Switch State leads which indicate the position of the SPE
Select Switch; Emergency Transfer leads which indicate whether
Emergency Transfer is on or off in the PPN cabinet; leads to tie INADS,
CDR, and Customer-Provided Alarming Device.
Without the ICC properly attached, the system cannot function as a high or
critical reliability system or as a standard system.
Figure 10-29 depicts the interconnection of the Duplication Interface circuit
packs with the rest of the system. The dotted lines show the logical serial channel
rather than actual physical implementation of the serial channel. For clarity, the
UARTs are not shown. The following abbreviations are used in the figure:
■ DUPINT for Duplication Interface circuit pack
■ PR MAINT for Maintenance/Tape Processor
■ PROCR for 80286 Processor circuit pack
■ MEM BD for Memory