Panasonic KX-TD500 System Reference Manual page 50

28.00 E&M Card
Functions
E&M card (KX-T96184)
(4 E&M trunk/card)
(1) E&M (Tie) Line Types ......... Type 5 only.
(2) Transmission ...................... 2-wire or 4-wire
(Note) Maximum cabling distance of E&M line
cord (twisted cable): 22 AWG: Under
9.6 km
(3) Transmission levels
2-wire voice path ................ -3 dB
4-wire voice path ................ -3 dB normal
(4) Signaling DTMF or Pulse
(5) E lead Battery
Sensitivity 5 mA (min.)or 2000Ω to
(6) M lead Permitted current : 30mA (max.)
Permitted voltage : ±100V (max.)
Operation
LED indicator on E&M card lights when the system
reset or E&M card local reset.
voice path
(Programmable)
(transmit/receive)
(transmit/receive)
Programmable
(-6 dB,-3 dB,0
dB,+3 dB)
-48 VDC, 20 mA to
ground (max.)
ground (max.)
29.00 T-1 Card
Functions
T-1 interface. (1 circuits / card)
T-1 is a digital transmission link with a capacity of
1.544Mbps.
T-1 carry 24 voice conversations.
Frame Format : D4 / ESF
Line Coding
Channel Type : LCO / GCO / DID / OPX / TIE
Signaling
(DTMF : 24 receivers and 6 generators)
Operation
LED indicator on T-1 card lights when the system
reset or T-1 card local reset, T-1 line fault occurs.
30.00 E-1 Card
Functions
E-1 interface. (1 circuits / card)
E-1 is a digital transmission link with a capacity of
2.048Mbps.
E-1 carry 30 voice conversations.
Frame Format : PCM30 / PCM30-CRC
Line Coding
Channel Type : DR2 / E&M-C / E&M-P
Signaling
(DTMF : 8 receivers and 2 generators)
(MFC-R2:16 receivers and 16 generators)
Operation
LED indicator on E-1 card lights when the system
reset or E-1 card local reset, E-1 line fault occurs.
1-E-14
: AMI / B8ZS
: Pulse / DTMF
: HDB3 / AMI
: Pulse / DTMF / MFC-R2