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Overview
1.1 Capacity
1.1.1 Capacity
You can connect the following number of extensions and outside lines to your system.
KX-TD612
CO line
(ISDN (BRI) line)
(Analogue CO Line)
Extension line
* ISDN (BRI) port 2 and ISDN (BRI) port 3 can be selected to be used for a CO line or ISDN extension
line (Default : port 2 — CO line/port 3 — Extension). The maximum capacity of the system depends
on the line selection. See below.
Line Selection
3 ISDN (BRI) ports are selected for CO line
2 ISDN (BRI) ports are selected for CO line
1 ISDN (BRI) port is selected for CO line
12
Basic
Module
System
Expansion
4
2
(2)
(1)
(—)
(1)
12
—
CO Line
6
4
2
Maximum
Capacity
6
(3)*
(1)
12
ISDN
Extension
Extension
Line
Line
0
12
8
12
16
12
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