BD420DE is a 4 ports, selectable E1 (32-channel) or T1 (24-channel)
card, This card supports both voice and data modes on its single
The card supports industry standard telephony and data protocols,
including R2, SS7 and Primary Rate ISDN (PRI) protocol families for
voice and PPP, Cisco HDLC, and Frame Relay data modes.
With the improved I/O speed, the card reduces CUP usage and
increases card density per server. One host can plugged with
multiple cards, particularly suitable for the development of
Asterisk & freeswitch based applications.
--support 4*E1/T1 interface, ( E1/T1 selectable)
--using the Dahdi driver: Wct4xxp. Ko, any driver patch no need
--Supporting EC Module with Octasic EC chip.
--Supporting Hardware HDLC and channel switching.
--system support: Elastix2.4.0, trixbox2.8.0, goautodial3.0 etc
--PCI express 1.0
--4 dual-color LEDs (layer 1 state indicators)
-- ISDN PRI PBX
-- Voice over IP PRI gateways
-- VoIP integration of ISDN equipment
-- PBX to PBX trunking