Instruction manual

9-7
Section 9-4 - Digital Voice Module (MDX-2)
Wheelock, Inc. Part Number: 105094
The Digital Voice Module (MDX-2) is a plug-in module that provides playback capability of pre-
recorded messages. The MDX-2, when activated, provides a pre-recorded tone and/or message
to the Dual-Circuit SAFEPATH
®
Panel which then broadcasts it through the amplifiers and to the
audio appliances.
The MDX-2 can have up to 8 pre-recorded messages that can be initiated by dry contact closure
or open collector for each one. Figure 9-4 on Page 9-8shows the location of these inputs. Up to 2
minutes of audio storage are recorded on UV-erasable EPROM memory chips. Any dry contact
closure or open collector can include Acknowledgment of the playing file and Reset initiation.
(The reset switch is required to be in a locked enclosure.)
The memory chips are normally recorded at Wheelock, Inc. The Standard Message Kit (SMK)
which has 8 common messages and tones, is programmed for a single channel output. Jumper
wires are in place on the MDX-2 so the same message will play on both channels. The
Programmed Message Kit (PMK) is tailor made to the customer’s desires including separate
messages on the two channels. The location of these kits are shown in Figure 9-4 on Page 9-8
The MDX-2 has a maximum of two line-level outputs that can play two different messages, one to
each amplifier, simultaneously. This is done by installing an Output Channel Module (AM-MDV-
OCM), Wheelock, Inc. Part Number 105097 on the MDX-2 Module.
The MDX-2 for the Dual-Circuit SAFEPATH
®
Panel is configured for the same message to be
transmitted on both amplifier modules. This is done with the jumper wires in the upper right hand
corner shown in Figure 9-4 on Page 9-8.
The Standard Message Kit (SMK) has a variety of configurations. Consult the current Wheelock,
Inc. Catalog for the up to date configurations.