Panasonic KX-TD500 System Reference Manual page 1057

Conditions
This screen cannot be selected from Extension-submenu screen if "System-
Configuration", Slot Assignment does not have any of extension cards (PLC, SLC,
HLC, MSLC, DLC, DHLC, ESLC, OPX) programmed or if "System-Configuration",
DN Assignment does not have the extension number programmed.
If PITS telephone KX-T123230D is connected, select KX-T123235 (7130) for PITS
Model.
PITS KX-T123230D is functionally equivalent to KX-T123235 and KX-T7130.
Telephone Type
OHCA Circuit
XDP
Hunt Station – Next
Tenant
Assignable telephone types depend on the card type.
Card Type Telephone Type Assignable
PLC APITS
SLC SLT
HLC APITS or SLT
OPX OPX
MSLC SLT (with MESSAGE lamp)
DLC DPITS
DHLC APITS, DPITS or SLT
ESLC SLT (with MESSAGE lamp)
This setting applies not to executing side but to receiving side.
'–' (hyphen) is displayed for the port of DLC and DHLC card, because
these cards have the OHCA circuit as a default.
For the XDP setting, follow the procedure below:
1) Select "On" for the XDP mode in the Station screen of the DPITS port.
2) Assign a DN for the XDP port in the DN Assignment screen (see 10-C-
3.00).
3) Assign parameters for the XDP port in the Station screen.
And exit the Station screen with saving. (The XDP port becomes OUS
status.)
4) Enter an INS command to change the port status to "In Service".
To change the XDP port to a Parallel Connect port, follow the procedure below:
1) Enter an OUS command to change the XDP port to "Out of Service".
2) Remove the XDP port by entering REMOVE command. ("Off" is
selected automatically for the XDP mode in the Station screen of the
DPITS port.)
3) Select "Yes" for the Parallel Connect mode in the Station screen of the
DPITS port.
It is impossible to store the extension number of the setting extension, as well
as the extension numbers assigned by other extensions as to be their Next
Hunt Station.
This parameter can be changed while the system is in "OFF LINE" mode or
the port is in "PRE-INSTALLED" status. If you change this parameter while
the port status in "IN SERVICE", you should remove the port before that.
10-G-5