The NEC SV8100 2-circuit ISDN line daughter card PZ-2BRIA includes two 2-channel circuits and is used when you want to connect a further 2 ISDN digital lines (4 channels) to the SV8100 phone system.
This card is installed on the CD-2BRIA card.
Note: Supports BRI Trunks Only.
2-Circuit BRI ISDN Daughter Card Features:
SV8100 Phone System Brochures: