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2.4 Installation of Optional Cards and Unit
74 General Installation
2.4.2 4-CO Line Unit Connection
To add four outside lines (outside lines 05 through 08 for KX-TD816, and outside lines 09
through 12 for KX-TD1232), use the optional 4-CO Line Unit (KX-TD180).
This unit can be installed to any of the expansion unit areas provided on the front of the main
unit. For outside line expansion unit installation, see Section 2.4.5 Installing Expansion Unit.
System Programming is required for card location identification.
Programming Guide References
[109] Expansion Unit Type