Specifications

78
EXPANSION INCREMENTS
Additional expansion is achieved using the cards shown in Figure 35:
Figure 35 DIGITAL family cards
Digital Key Bx, Digital 400 & Digital 1000 Configuration Capabilities
MPD
OCD
RS232
DRV
ULD
UHD
ELD
EHD
ELA
SHD
ONS
HONS
BRS
PRI24
PRI30
1 DTMF receiver, MOH and BGM audio channels
(for the DIGITAL KEY BX system, the MPD card
includes 4 loop-start CO lines, audio channels, and relays)
3 option modules
RS232 (extra RS232 port)
DIGITAL 1000 Driver card*
16 U - interfaces for 16 Avanti digital stations or attendants
8 U - interfaces for 8 Avanti digital stations or attendants
8 S-interfaces for 16 DIGITAL stations
4 S-interfaces for 8 DIGITAL stations
8 analog stations
4 single line telephones (pulse dial or DTMF)
16 on premises single line telephones (pulse dial or DTMF)
8 on premises single line telephones (pulse dial or DTMF)
4 ISDN 2B channel + 1D channel (ISDN2) Basic Rate Interfaces
for internal lines (terminal)
1 ISDN 23B channel + 1D channel (ISDN24) Primary Rate
Interface to the public exchange
1 ISDN 30B channel + 1D channel (ISDN30) Primary Rate
Interface to the public exchange
BRT
BHT
COL
CHL
COG
DID
N24
N12
N30
N20
N10
EMD
EMD
El
E1-MFC/R2
T1
4 ISDN 2B channel + 1D channel (ISDN 2) Basic Rate Interface
to the public exchange
2 ISDN 2B channel + 1D channel (ISDN 2) Basic Rate Interface
to the public exchange
8 loop-start CO lines
4 loop-start CO lines
8 ground or loop-start CO lines
8 Direct Inward Dialing trunks
1 ISDN 23B channel + 1D channel (ISDN 24) DPNSS or
QSIG Networking Interface**
1 ISDN 12B channel + 1D channel (ISDN 12) DPNSS or
QSIG Networking Interface**
1 ISDN 30B channel + 1D channel (ISDN 30) DPNSS or
QSIG Networking Interface**
1 ISDN 20B channel + 1D channel (ISDN 20) DPNSS or
QSIG Networking Interface**
1 ISDN 10B channel + 1D channel (ISDN 10) DPNSS or
QSIG Networking Interface**
4 E&M TIE lines (4 two-wire)
2 E&M TIE lines
(2 four-wire)
1 El carrier R2 protocol
(equivalent to 30 analog/digital trunks)
1 E1 carrier MFC and R2 protocols
(eqivalent to 30 analog/digital trunks)
1 T1 carrier (equivalent to 24 analog/digital trunks)
* For the DIGITAL 1000 system only.
** These cards can be ordered with either QSIG or DPNSS protocol.