Panasonic KX-TD500 Installation Manual page 43

PCOT (Loop Start Central Office Trunk with Pay Tone Detection) Card (4 CO
Lines/card)(KX-T96189) Operation
1.
The LED indicator on the PCOT card lights when the system reset or PCOT local reset
occurs.
ELCOT (Enhanced Loop Start Central Office Trunk) Card (8 CO Lines/ card) (KX-
TD50180) Functions
1.
Loop start CO interface.
1 DTMF generator. Line Reversal detection.
With loop start, you seize a line by bridging through a resistance the tip and ring (both
wires) of your telephone-line.
2.
Caller ID/ Pay Tone Capability.
Two Caller ID Cards (KX-TD193) can be mounted on ELCOT card.
Or Two Pay Tone Cards (KX-TD50189) can be mounted on ELCOT card.
3.
Power failure transfer (PFT) by each port.
Tip/Ring of CO are connected to a CO interface circuit, and directly to ELCOT PFT
mudular. When power failure occurs, CO Tip/ring leads are directly connected to SLT Tip/
Ring leads, but ELCOT PFT mudular and SLT PFT modular should be connected to each
other in advance.
4.
Diagnostic transfer (DT) by each port.
A diagnostic relay is placed in Tip/Ring of each port.
All diagnostic relays are set to the diagnostic position except on the call.
ELCOT (Enhanced Loop Start Central Office Trunk) Card (8 CO Lines/ card) (KX-
TD50180) Operation
1.
The LED indicator on the ELCOT card lights when the system resets or ELCOT local reset
occurs.
BRI Card (KX-TD50288) Functions
ISDN Basic Rate Access Interface. (8 circuits/card)
a)
8 ISDN Basic Interface (2B+D)
b)
S0/EXT flexibility for each line
c)
Power Feeding of EXT mode
One card total : 18 W max.
One Line : 4.5 W max.
The maximum power consumption available for each line is 4.5 W, however, the whole
power consumption available for the card (8 lines in total) is limited to less than 18 W.
(e.g. If 2 lines consume 4.5 W each, the rest of 6 lines can consume 1.5 W each.)
d)
Line cording : AMI
e)
Impedance : 100 ohms
System Outline
1.6 Specifications
43