Panasonic KX-TD500 Installation Manual page 43

Line Coding
Channel Type :
Signalling
(DTMF : 24 receivers and 6 generators)
T1 Digital Trunk Card (KX-T96187) Operation
The LED indicator on T1 card lights when the system resets, or T1 card local reset or T1 line
fault occurs.
E1 Digital Trunk Card (KX-T96188) Functions
1.
E1 interface (1 circuit/card).
E1 is a digital transmission link with a capacity of 2.048Mbps.
E1 can carry 30 voice conversations
Frame Format : PCM30/PCM30-CRC
Line Coding : AMI/HDB3
Channel Type : DR2/E&M-C/E&M-P
Signalling : Pulse / DTMF / MFC-R2
E1 Digital Trunk Card (KX-T96188) Operation
1.
The LED indicator on E1 card lights when the system resets, or E1 card local reset or E1
line fault occurs.
PCOT Card (4 CO Lines/card) (KX-T96189) Functions
1.
Loop start CO interface.
CPC detection, 1 DTMF driver.
With loop start, you seize a line by bridging through a resistance the tip and ring (both
wires) of your telephone line.
Pay tone detection (12 kHz/16 kHz)
2.
Power failure transfer (PFT) by each port.
Tip/Ring of CO are connected to a CO interface circuit, and directly to PCOT PFT modular.
When power failure occurs, CO Tip/ring leads are directly connected to SLT Tip/Ring leads,
but PCOT PFT modular and SLT PFT modular should be connected each other with
connection cord in advance.
3.
Diagnostic transfer (DT) by each port.
A diagnostic relay is placed in Tip/Ring of each port.
During diagnostic test, only one diagnostic relay in an PCOT of a system is activated.
PCOT 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.
System Outline
: AMI / B8ZS
LCO / GCO / DID / OPX / TIE
: Pulse / DTMF
1.6 Specifications
43