Voice Announce Unit; Hardware - Panasonic Digital Business System Installation Manual

March 1997

Voice Announce Unit

The Voice Announce Unit (VAU) is an optional unit for use with the DBS and S-DBS systems. It is connected to
digital extension ports. The VAU provides recorded messages to callers, then transfers them to another extension
following the callers' DTMF dialled instructions.
Each Voice Announce Unit contains two answering circuits each can have a different message or messages
recorded depending upon DIP switch settings. Each circuit is associated with one of the DEC ports. Circuit 1 for
port 1 and circuit 2 for port 2.
The recorded messages and programmed information have a battery backup which will hold the data for up to 5
days in the event of a power failure once the unit has been installed for 48 hours.
When the VAU detects a call, it answers and plays a recorded message. If the VAU is used to back up an
operator, or group of people, a delay to answer can be inserted, this allows the original persons time to answer the
call if they are available. The delay to answer time is determined by dip switches within a range from 0 to 32
seconds. Recall ringing will override the delay to answer timer and the call will be answered immediately.
In the event that a caller is using an LD/pulse dialling telephone, or the DTMF level is low, the VAU will
automatically transfer the call to a predetermined extension.
For correct operation when a caller clears before the Voice Announce Unit has routed the call, the
exchange to which the DBS is connected must supply Calling Party Clear (CPC) signalling. If the trunks
being answered are analogue the DBS must be set to detect CPC signalling on the analogue trunks
ringing the VAU.

Hardware

Weight
Dimensions (HxWxD)
Operating temperatures
Loop resistance
(maximum)
Message storage
Port capacity
DTMF receivers
Panasonic Digital Business System - Installation Manual
DBS
Figure 29 - VAU Schematic
230g (approximate)
240x120x45 mm
o
0~40 C
40 ohms
RAM
2
2
1st circuit
DEC
card
2nd circuit
Note:
240mm
45mm
52
VAU unit
120mm
Issue 5