September 2004 NEC Business Solutions Ltd
12 - The Components
Doc. No. 8846 - Release 1.1
September 2004
5.3 2PGDU-A1
This is the Doorphone/Paging/Audio interface card, and is installed
into the "PGDU" slot in 924M KSU. This card provides :
2 Doorphone circuits
2 Relay contacts for Door Unlock/Audio Control
2 Audio Jacks
The NEC doorphone DP-D-1D unit is supported.
This card provides 2 audio jacks in order to connect External Paging
Speaker, External Music On Hold and BGM audio sources, of which
two items may be selected simultaneously (assigned by software
setting).
5.4 DSPDB-A1
This is the additional DSP resource with VRS (Voice Response
System) card, and is installed into the 924M KSU. This card provides
up to 16 Tone Receivers (DTMF/Busy Tone/Caller-ID) / Caller-ID
Senders, and 16ch VRS functions which is provided by the CF
(Compact Flash) located on DSPDB.
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