Panasonic KX-TD500 Installation Manual page 38

2.
Power Failure Transfer (PFT) by each port.
When a power failure occurs, SLT Tip / Ring are led by a PFT relay, but SLT PFT modular
and LCOT / GCOT modular should be connected to each other in advance.
3.
Diagnostic transfer (DT) by each port.
Diagnostic relay is placed in Tip / Ring of each port.
During diagnostic test, only one diagnostic relay in the SLT of a system is activated.
SLC Card (Single Line Telephone Circuit card) (KX-T96174) Operation
1.
The LED indicator on the SLC card lights when system reset or SLC local resets occurs.
SLC-M Card (KX-T96175) Functions
1.
Same as SLC Card.
2.
Same as SLC Card.
3.
Same as SLC Card.
4.
SLT with Message Waiting Lamp interface Power supply to Message Waiting Lamp:
+80VDC (when 1mA)
SLC-M Card (KX-T96175) Operation
1.
Same as SLC Card
OPX Card (Off Premise Extension (4 OPX Lines / card)) (KX-T96185)
1.
OPX Power Unit should be connected with OPX card, and Single Line Telephones for OPX
should be connected with OPX card.
DHLC Card (Digital Hybrid Line Circuit card ) (KX-TD50170)
1.
Standard SLT interface.
The SLT interface is similar to the SLC card.
2.
Interface for Analog/Digital PT and DSS console
The interface for the Analog/Digital PITS and DSS console is similar to the.
3.
OHCA feature with Analog PT (KX-T123230D, KX-T123235, KX-T7130)
The OHCA feature with Ananlog PT (KX-T123230D, KX-T123235, KX-T7130) is
available without any optional cards.
4.
Interface for Digital PT (KX-T7235, KX-T7436) with OHCA feature
The interface for Digital PT (KX-T7235, KX-T7436) with an OHCA feature is similar to
the DLC card.
5.
Interface for power failure transfer by each port (when sing SLT)
The interface for power failure transfer is similar to the SLC card.
* OPX Power Unit is necessary
† For a Digital/Analog PT,DSS console and SLT. (8 extensions or 16 extensions with XDP/card. Refer to "Extra Device Port (XDP)
Connection" for XDP.)
System Outline
1.6 Specifications
*
Functions
†
Functions
39