Panasonic KX-TD500 Installation Manual page 35

1.6 Specifications
PRI30 Card (KX-TD50290)
Functions
Operation
DISA Card (KX-T96191)
Functions
Operation
ERMT Card (KX-TD50197)
Functions
Operation
1-22 System Outline
ISDN Primary Rate Access Interface-2.048MHz. (1 circuit/card)
(1) PRI30 carry 30 voice conversations
(2) Frame Format : CRC-Multiframe
(3) Line Cording : HDB3
(4) Impedance : 120 ohms
LED indicator on PRI30 card lights when the system reset,
PRI30 card local reset or PRI30 card fault occurs.
Direct Inward System Access card
(1) 4 OGM trunks.
OGM duration : 30 seconds,
OGM Capacitor Backup : 5 days.
The number of OGM : 1,
Recording Algorithm : ADPCM.
(2) 4 CO-CO speech paths without amp.
A CO-CO speech path consists of up-path and down-path.
Up-path is from call-originate CO to call-answer CO, and
1 DTMF receiver and one speech end detector is
connected to it.
Down-path is from call-answer CO to call-originate CO
and one speech end detector is connected to it.
(3) Speech end detector.
Speech end detector detects call progress tones.
The LED indicator on the DISA card lights when the system
resets or DISA local reset occurs.
Enhanced Remote Circuit card
Modem (V.34 MODEM) for remote administration
The LED indicator on the ERMT card lights when the sys-
tem resets or ERMT local reset occurs.