Octel XC1000, Service Manual

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INTRODUCTION
1-3 Edition One XC1000 Service
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 17 18 16
POWER
SUPPLY
POWER
SUPPLY
POWER
SUPPLY
POWER
SUPPLY
+5
+5
+12
+12
TIC TIC TIC SP
ARE ACP TIC TIC TIC CPU MONIT
OR CARD
MESSAGE FILE CARD SYSTEM FILE CARD DLC DLC DLC DLC DLC DLC
SYSTEM SYSTEM
MESSAGE
MESSAGE SPARE
USED FOR
UPGRADES AND
MAINTENANCE
USED FOR
UPGRADES AND
MAINTENANCE
DRIVE 0 DRIVE 1
DRIVE 0
MESSAGE
DRIVE 1
MESSAGE
DRIVE 2
MESSAGE
DRIVE 3
DRIVE 4
MESSAGE
DRIVE 5
MESSAGE
DRIVE 6
19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 35 36 34
POWER
SUPPLY
POWER
SUPPLY
+5
+5
TIC TIC TIC SP
ARE SP
ARE TIC TIC TIC SP
ARE SP
ARE SP
ARE SP
ARE DLC DLC DLC DLC DLC DLC
SP
ARE T1 TIC SP
ARE T1 TIC SP
ARE T1 TIC SP
ARE T1 TIC SP
ARE T1 TIC SP
ARE T1 TIC
LINE GROUP 1
A B C D
LINE GROUP 2
A B C D
LINE GROUP 3
A B C D
LINE GROUP 4
A B C D
LINE GROUP 5
A B C D
LINE GROUP 6
A B C D
CABINET 1 CABINET 2
Figure 1-1. Dual-Cabinet, Nonredundant.
The main backplane connects logic cards to the system data and control
buses, distributes power to all cards, and provides the interface between
trunks and TICs. The main backplane also provides the pulse-code-modulation
(PCM) bus that allows communications between TICs and DLCs.
The disk backplanes in cabinet 1 allow the file cards to communicate with
the system and message drives. Each XC1000 platform contains three disk
backplanes, one for the system-drive shelf and two for the message-drive
shelves. The disk backplanes provide power and signal connections between
the file cards and the drives on each shelf.
TICS, DLCs, and power supplies are hot-pluggable; that is, they can be
removed and reinstalled without taking the XC1000 out of service. However,
the cards must be disabled in menu 13.11. The hot-plug TICs and DLCs
apply to all XC1000s at software Release 1.5 or newer. Hot-plug power
supplies are a standard feature on all XC1000s shipped since June 1992
and must be installed if the XC1000 is upgraded to Release 1.5.
SECTION 1.2