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COMPONENT DESCRIPTIONS
10-28
Edition One
XC1000 Service
The switch trunk cables are connected to the main backplane through
25-pair male amphenol connectors. Loop- or ground-start telephone lines
that connect to ATICs should be connected to the top row of amphenol
connectors on the main backplane.
Two terminators are located at the lower corners of the main backplane.
The serial bus runs between these terminators, between card-cage slots 1
and 18. These terminators are removed to connect a second frame.
The main backplane contains the telecom ground connection for signaling
over the trunks to the switch. (Tie-line interfaces are used for ground-start
trunks, DID trunks, and E&M.) The telecom signal connectors are prewired
at the factory and do not need to be connected at installation time.
Do not remove the main backplane shield unless system
power is off. Removing the shield with the power on is
hazardous to personnel and equipment.
Caution!
The main backplane is covered with a shield. Openings are provided for
cable connections between TICs and the CO. Do not remove the backplane
shield unless directed to by Octel Communications.
10.6 MAIN DISTRIBUTION BOARD
The main distribution board is located below the main backplane. The
distribution board provides connectors for external access to the system.
These connectors are used for connecting data links, the system manager
terminal, remote alarms, and the RDAC port to the XC1000. Refer to
section 3.8 for information about connecting the data links, system
manager terminal, remote alarms, and RDAC port to the XC1000.
Figure 10-16 shows the major internal connectors on the distribution
board.
The CPU and monitor card are connected to the distribution board to
permit external access to the system. The CPU connects to the distribution
board at J28 and J29. J28 connects to rows A and B of the CPU connec-
tor on the main backplane using the CPU AB cable. J29 connects to rows
C and D using the CPU CD cable.
The monitor card connects to the distribution board at J26 and J27. J26
connects to the monitor card’s A and B rows on the main backplane using
the monitor AB cable. J27 connects to the main backplane using the
monitor CD cable.
The system and message-file cards are not connected to the distribution
board. The file cards communicate with the CPU through the main
backplane.
SECTION 10.5 – 10.6
Содержание XC1000
Страница 1: ...EDITION ONE XC1000 P N 101 1345 000 SERVICE MANUAL ...
Страница 8: ...CONTENTS ...
Страница 19: ...1 INTRODUCTION ...
Страница 30: ...2 SITE PREPARATION ...
Страница 60: ...3 PLATFORM INSTALLATION ...
Страница 112: ...4 STARTUP AND INITIALIZATION ...
Страница 177: ...5 ROUTINE MAINTENANCE ...
Страница 195: ...6 TROUBLESHOOTING ...
Страница 237: ...7 STATUS LOG ...
Страница 297: ...STATUS LOG 7 54 Edition One XC1000 Service ...
Страница 302: ...8 REPAIR AND REPLACEMENT ...
Страница 380: ...9 SYSTEM UTILITIES ...
Страница 424: ...10 COMPONENT DESCRIPTIONS ...
Страница 465: ...11 OPTIONAL FEATURES ...
Страница 485: ...12 RELEASE 1 55 UPGRADE INSTRUCTIONS ...
Страница 516: ...13 RELEASE 2 X UPGRADE INSTRUCTIONS ...
Страница 559: ...14 RELEASE 3 02 FCP CONVERSION INSTRUCTIONS ...
Страница 603: ...15 RELEASE 3 02 ONLINE UPGRADE INSTRUCTIONS ...
Страница 631: ...16 RELEASE 3 0 SYSTEM UTILITIES ...
Страница 683: ...17 RELEASE 4 X FCP CONVERSION INSTRUCTIONS r P N 281 0023 002 1 of 3 ...
Страница 725: ...18 RELEASE 4 X ONLINE UPGRADE INSTRUCTIONS r P N 281 0023 002 2 of 3 ...
Страница 760: ...19 RELEASE 4 0 SYSTEM UTILITIES P N 281 0023 002 Part 3 of 3 r ...
Страница 776: ...20 RELEASE 4 1 SYSTEM UTILITIES P N 281 0033 000 ...
Страница 787: ...APPENDIXES ...