Digital Audio Equipment

The DMC-PRO is the latest the latest technology from National Communications. It is a sophisticated MP3-based product. It allows message updates using its plug in flash card. It provides for up to 128 minutes of on Hold Message stored on removable 64MB multi-media card.

Note, for new installations an LIU (line isolation unit) is required.

The TDU Timer Unit allows automatic triggering of TDU (Talking Display Unit) message(s) at user-specified time intervals.

Our new AUTOMATIC ANNOUNCEMENT DEVICE (AAD) will automatically answer your incoming telephone calls, play a brief USER PROGRAMMABLE MESSAGE before ringing your telephones so that you can answer the call. If your caller should hang up before you answer, AAD will detect this and cease ringing of your telephones.

The Talking Display Unit Pro (Model NC-TDU-PRO) will play one or more pre-recorded messages (up to 32 minutes) as soon as it is triggered by a movement sensor, a switch or at a preset time interval. This is ideal for Product Promotions, Product Information, Message Warnings, etc. This is an MP3-based unit and includes a 64MB MMC flash card and USB/MMC programmer.

The Multiple Input Unit (model MIU) allows for up to 12 PIR sensors or Normally Closed switches to be connected to one TDU PRO- each will trigger a different message.

The Speaker Switching Unit allows for up to 12 separate speakers to be connected to one TDU (Talking Display Unit) which, when combined with a Multiple Input Unit (MIU), allows for true zone messaging.

The Audio Switching Unit (Model NC-ASU) allows a triggered TDU (Talking Display Unit) message to be switched into an existing Background Music or PA System for the duration of the message.

The TDS (Talking Display System) is a High Quality MP3 Digital Message Player which will play Messages on Demand. TDS incorporates a touch sensitive keypad, which allows you to enter a message number (between 1-252) which will then recall and play the selected message via its internal speaker or output the message to an external speaker. Messages are stored on a standard 64MB MMC/SD card, which is included with the unit. 64MB will provide for 64 minutes of message at CD quality. MMC or SD cards up to 1MB can be used to provide for over 30 hours of Digital Message at CD quality.