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INTRODUCTION
1-6
Edition One
XC1000 Service
1.2.3.4
Common Channel Signaling/Signaling System 7 (CCS/SS7) Integra-
tions.
CCS/SS7 integrations provide a digital transmission for domestic
and international signaling applications. Digital transmission eliminates
the inherent noise problems that can occur with those integrations using
an analog transmission. The protocol follows CCITT standards. With
CCS/SS7 integrations, signaling and voice are separated into different
channels with the signaling for several calls contained in one channel or a
“common” channel. CCS/SS7 integrations require the use of the primary
rate interface TIC (PTIC). The PTIC provides the interface to support 30
DLC voice channels. An adapter to the PTIC can provide either a 75-ohm
coaxial or 120-ohm symmetrical-pair connection, depending on the CO or
MTX requirements.
1.2.4 ACP Multiple-Terminal Access
The optional ACP provides seven 25-pin RS-232 connectors for up to seven
multiple-terminal-access (MTA) SMTs to be installed, either at local or remote
locations. Up to seven administrators can access the XC1000 database from
these separate terminals to make configuration changes, review the status logs,
and perform other control functions. These seven terminals can access
different areas of the XC1000 database simultaneously. Without the ACP MTA
option, up to three SMTs can be accessed, but the number of RS-232 integra-
tion links is reduced.
XC1000 supports individual data formats for each SMT and provides each
SMT with a different access level. The ACP I/O distribution board routes all
seven channels into a single cable, which connects the ACP-MTA connector
to a CPU port.
1.3 PLATFORM REQUIREMENTS
Table 1-1 lists the basic XC1000 requirements. Refer to Chapter Two for
detailed physical, electrical, and environmental requirements.
Table 1-1. Platform Requirements.
Parameter
Requirements
Telephone Circuits
Maximum number of mailboxes available
30,000
Maximum number of ports
Single cabinet
72
Dual cabinet
144
European single cabinet (digital trunks)
90
European dual cabinet (digital trunks)
120
Number of ports in a line-card group
Total
24 or 30
Ports per type of TIC
ATIC (loop start)
12
SECTION 1.2 – 1.3
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 ...