Tie-line Connections of Exchanges
1. Purpose of tie-line connection

When the EXES-6000 system uses the Central Processing

Unit Model CP-64, not only the use of a single exchange

(up to 256 stations) but also the tie-line connections of

2 exchanges (up to 512 stations) or 3 exchanges (up to

stations) are possible.

This tie-line function may be used when

1) You wish to connect 2 or 3 exchanges in the remote
areas (maximum distance connected between ex -
changes using the cable of 0.65mm diameter is
approximately 2 km.)
2) One exchange is not sufficient enough t o cover the

desired number of stations and a separate exchange

is required for increase in the number of stations.
Station
(No.
200 ~
455)
Station
(No.
200 ~
455)
Station
(No.
470 ~
725)
Station
(No.
470 ~
725)
Station
(No.
740 ~
995)
2. Number of stations, paging zones and links
Composition of exchange(s)
(1) Without tie-lines
(EX-1)
(2) 2 exchanges
(EX-2A) (EX-2B)
Maximum number
of links withinown exchange
16
16
*1
Maximum numberof links betweentie-lined exchanges—
16
*2
Maximum number ofpaging zones
All call +31 zones
All call +30 zones *4
(15 zones per exchange)
Maximum number of
stations
256
512
*1 The links within own exchange as well as the tie-line links are used in each tie-line communication.
*2 One (8 links) or two tie-line units (TI-62) are needed per exchange.
*3 Two tie-line units (TI-62) are needed per exchange.*4 All call paging is provided to all the paging zones of all the exchanges connected by tie-line.
Tie-line
16
*1
8 between eachtie-lined link*3
All call +45 zones *4
(15 zones per exchange)
768
(3) 3 exchanges
(EX-3A)
(EX-3C)
(EX-3B)
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