Panasonic KX-TD816E, Installation Manual

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2-38 Installation
2.4 Optional Cards and Units Installation
2.4.4 CO Line Connection (Optional Unit)
To add four CO lines (KX-TD816: CO 5 through CO 8, KX-
TD1232: CO 9 through CO 12), use the optional 4-CO Line Unit
(KX-TD180). To add two ISDN S0 lines, use the optional 2-ISDN
S0 Line Unit (KX-TD280). One of these units can be installed in
any of the two/three expansion areas provided on the front of the
main unit.
For Unit Installation, see Section 2.4.6 “Installing Expansion Unit
(KX-TD170/KX-TD180/KX-TD280).”
2.4.5 Extension Connection (Optional Unit)
To add eight extensions (KX-TD816: jacks 9 through 16, KX-
TD1232: jacks 17 through 24), use the optional 8-Station Line Unit
(KX-TD170).
To add 16 extensions (jacks 17 through 32)*, use two 8-Station
Line Units.
This unit can be installed in any of the two/three expansion areas
provided on the front of the main unit.
For Unit Installation, see Section 2.4.6 “Installing Expansion Unit
(KX-TD170/KX-TD180/KX-TD280).”