Specifications

79Digital Key Bx, Digital 400 & Digital 1000 Configuration Capabilities
OPTION CARD
Each of the option cards (OCD) can support up to three
option modules (see Figure 36). The six available
options are:
Multiple Interface Module (MIM) to interface with:
- Four ImaGEN voice mail ports
- External equipment such as background music,
external bells, public address systems, and door
units.
Source 1 module provides:
- The meet-me conference option (see Conference
in User features in Section 7)
- Interface for four ImaGEN voice mail ports
- Interface for external equipment such as
background music, external bells, public address
systems, and door units.
Source 2 module provides:
- Access to the MPD redundancy feature
(DIGITAL 1000 system only)
DTMF receiver module:
Each DTMF module provides the DIGITAL system
with four independent DTMF receivers, each of
which will recognize 16 different tone pairs.
Altogether, up to 17 DTMF receivers can be
installed in the DIGITAL KEY BX system and,
using ONS/HONS cards, up to 37 DTMF receivers
can be installed on the DIGITAL 400 system. The
DIGITAL 1000 system supports 45 DTMF
receivers. In the DIGITAL KEY BX and
DIGITAL 400 systems, up to 16 of the DTMF
receivers are provided by using the DTMF modules.
In the DIGITAL 1000 system, up to 24 of the
DTMF receivers are provided by using the DTMF
modules.
Figure 36 Option card modules
Option card (OCD)
MIM
Source 2
MODEM
DTMF
MIM
Source 1
Option modules
OA