Panasonic KX-TD500 Installation Manual page 23

1.2 System Construction
Note
You cannot assign any cards which exceed the system capacity.
When the system starts up with excess cards by the automatic configuration mode, they will be
ignored.
Refer to Section 2.10.2 CPU Rotary-Switch Features for further information.
Port Limits of Extension/CO Lines
Maximum number of Extensions (PT/SLT) and CO lines allowable per system/shelf is as
shown below.
1 PT Extension +
SLT Extension +
CO Line
2 PT Extension +
SLT Extension
3 PT Extension
4 CO Line
Note
• The number of PTs (Analog/Digital Proprietary Telephones) should be less than 128 per
shelf.
• The number of SLTs (Single Line Telephones) should be less than 160 per shelf.
Port Limits of Other Terminals
Maximum number of other terminals allowable per system is as shown below.
1
2 DSS Console
24
Item Maximum Port Number
/ System
512
448
-
192
Table 4
Item Maximum Port Number
Doorphone
Table 3
/ Basic Shelf / Expansion Shelf
192
192
128
-
/ System
8
64
224
192
128
-
System Outline