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NFS2-640/E Installation Manual —
P/N 52741:P2 7/10/14
Installation
Mounting Option Boards
3.6.7 DVC Digital Voice Command
Each DVC Series model is a multi-featured audio processor with digital audio functionality that
operates as an event-driven audio message generator and router. It is designed for use with the
DAA2, DAX, DAA Series digital audio amplifiers, and the DVC-RPU Remote Paging Unit, as
well as the DS-DB distribution boards, in a single panel or networked environment, and may also
be used as an analog audio source or configured as a remote paging unit. Refer to the
DVC Manual
and
DVC-RPU Manual
.
The NFS2-640/E may be directly connected to the DVC for single panel applications. An
associated NCA-2 is required when a DAL (digital audio loop) is part of the configuration; this
configuration supports NUP-to-NUP-to-NUP configuration for single panel DAL applications.
Network configurations require an associated NCA-2, and will support all Network Control-by-
Event; each node (DVC, CPU-2 and NCA-2) requires a network address/NCM port in network
applications.
• DVC-EM - Digital Voice Command, extended memory, wire version (standard)
• DVC-EMF - Digital Voice Command, extended memory, multi-mode fiber version
• DVC-EMSF - Digital Voice Command, extended memory, single-mode fiber version.
For information regarding audio storage for the DVC-EM Series models listed above, refer to the
DVC Digital Voice Command Manual
.
Figure 3.13 gives simplified overview illustrations of typical applications for the DVC Series and
its Digital Audio Loop (DAL).
NOTE:
NCM hardware is not compatible with HS-NCM hardware and should not be mixed on
the same network.
NOTE:
The DVC Series consists of all the model versions listed in the bullets below this note.
Individual part numbers are used in this manual only when it is necessary to distinguish features
or functions that differ. The term DVC is used in all other cases.
NOTE:
The term DAA is used in this manual to refer to all DAA wire and fiber models. Individual
part numbers are used only when it is necessary to distinguish features or functions that differ.
