Panasonic KX-TD500 Installation Manual page 32

1.6 Specifications
Operation
DLC Card (KX-TD50172)
Functions
Operation
ESLC Card (KX-TD50175)
Functions
The interface for Digital PT (KX-T7235, KX-T7436)
with an OHCA feature is similar to the DLC card.
(4) Interface for power failure transfer by each port (when
using SLT)
The interface for power failure transfer is similar to the
SLC card.
(5) Interface for diagnostic transfer by each port
The interface for diagnostic transfer is similar to the SLC
card.
The LED indicator on the DHLC card lights when the system
resets or DHLC local reset occurs.
Digital Proprietary ITS Line Circuit card
(1) Digital PT and DSS console interface (16 circuits/card)
Maximum loop resistance: 40 ohms
Power supply: +15V (supplied through the data line)
(2) Digital PT (KX-T7235, KX-T7436) interface with OHCA
feature
When a Digital PT with OHCA feature is connected to
a port, a DPT OHCA card (KX-TD50105) should be
mounted on the TSW card.
The LED indicator on the DLC card lights when the system
resets or DLC local reset occurs.
Enlarged Single Line Telephone Circuit with Message
Waiting card (16 extensions/card)
(1) Standard SLT interface
Maximum loop resistance: 600 ohms (including SLT)
Power supply: +30V (with current limitation circuit)
4 DTMF receivers, and dial pulse detectors.
(2) Interface for power failure transfer by ports 1 to 8
The interface for power failure transfer is similar to the
SLC card.
System Outline 1-19