User`s manual

1. OVERVIEW

1.1 Features and Capabilities

The Mackenzie MacFi-mp family is the most cost effective series of

MP3 Digital Audio Record / Play Systems available for industrial

usage. Backed by Mackenzie’s years of system design experience,

MacFi-mp offers a great deal of functionality in a compact and

inexpensive package.

Messages are user recordable via microphone or line input through a

straight forward user interface located directly on the unit. Simple

parallel controls for 8 messages are available on terminal connectors.

Record and Stop inputs and a Play relay output are also accessible

via terminals.

The MacFi-mp offers up to 99 messages and 40 minutes of MP3

audio. MP3 supports up to 15kHz bandwidth and 80 dB of dynamic

range. All 99 messages are accessible from the user interface on the

MacFi-mp with 8 remote start inputs accessible via the remote

activation pluggable terminal. Dynamic Message Length (DML)

technology has been incorporated in the MacFi-mp allowing each of

the messages to be of different duration. DML also provides for

replacement messages to be a different length than the original,

maximizing memory efficiency and compatibility with future

applications.

The MacFi-mp retrieves stored audio data from non-volatile flash

memory, eliminating the need for battery backup, and delivers superb

sound quality.

The MacFi-mp offers several different playback modes to

accommodate different applications. Standard, Play once per

closure, Play while active, and Retrigger allow the MacFi-mp to be

used with existing on site control circuitry. Message repetition and

delay between message settings are user selectable as well.

The space saving built-in 4 watt power amplifier is perfect for most

direct to speaker applications as it eliminates the need for additional

hardware.

The MacFi-mp’s small size, industrial construction and the absence

of moving parts make it ideal for automatic unattended operation,

especially in harsh environmental or mobile conditions. An optional

1U rack mount adapter is also available.