Panasonic KX-TD1232E Installation Manual page 560

8.1 Overview
8-2 DECT Portable Station Section
To connect the wireless system, the following equipment is required.
Cell Station Interface Unit (KX-TD144)
One KX-TD144 supports up to two Cell Stations (KX-TD142) and
four wired extensions. One KX-TD144 can be installed to the KX-
TD816 and up to two KX-TD144s can be installed to the KX-
TD1232.
Cell Station Interface Unit (KX-TD146)
One KX-TD146 supports up to six Cell Stations (KX-TD146).
One KX-TD146 can be connected to the KX-TD816 and up to two
KX-TD146s can be connected to the master KX-TD1232.
CS: Cell Station (KX-TD142)
This unit determines the range of the supporting PSs. Up to four
calls can be made at the same time in one range.
PS: DECT Portable Station (KX-TD7500)
Up to 16 PSs in the KX-TD816 system and up to 64 PSs in the KX-
TD1232 system can be assigned as extensions. For more details
about the PS, please refer to the User Manual.