2.2.6. Remote I/O Connector
Six terminal pluggable connector
1 Common
2 Stop, stops playback, if playing 1
2
3 4
5
6
3 Start, plays active message
4 Play Relay Output, Normally Open
5 Play Relay Output, Common
6 Play Relay Output, Normally Closed
2.2.7. USB connector
USB type
“A” connector for use with a USB memory key. The Minimac2
will upload or download audio files to or from the USB key based on the
folder names on the key. See descriptions of supported folder names:
“Complete”:
ALL files on Minimac will be deleted and replaced with
audio files in this folder.
“Delta”:
Audio files of the same name will be replaced with files in this
folder.
“Upload”
: When the Minimac2 detects a memory key with only an empty
Upload folder, and not other folders, all audio files will be copied from the
Minimac2 into this folder on the memory key.
If both a
“Complete” and a “Delta” folder exist on the key, no audio files
will be transferred and an error indication will be displayed on the LEDs.
Reference Section 3 for the audio file types supported by the Minimac2.
2.3 Audio Control Descriptions
2.3.1. Line Input Level
Potentiometer to adjust Line input level. Range is continuous from -infinity
to +0dBm. While recording adjust this setting to provide required level.
2.3.2. Microphone Input Level
Potentiometer to adjust mic. input level. Range is continuous from -infinity
to +0dBm. While recording adjust this setting to provide required level.
2.3.3. Tone Level
Potentiometer to adjust tone level. Range is in 1 db steps from +10dB bass
& -10dB Treble (Fully CCW) to -10dB bass & +10dB treble (Fully
Clockwise). Center position is 0 db bass, 0 db treble
2.3.4. Output Level
Potentiometer to adjust playback level simultaneously on both Line and
Speaker output . Range is continuous from -infinity to +4dB.
2.4 Pushbutton Descriptions
2.4.1 Record
Press to enter record setup mode, Record LED will blink. Press Select
button to choose the message location for recording. Press the Start/Stop
button to begin recording, Record LED will be solid. Press the Start/Stop
button to stop recording or to exit record mode.
NOTE: A message may be erased from memory by entering Record
Setup mode, selecting the message number to be deleted, and then
press and hold the Start/Stop button for approximately 2 seconds.
2. INSTALLATION & CONFIGURATION
This section provides complete instructions for mounting the Minimac2 -
compact audio message repeater on a wall or table. It also illustrates all
interface requirements to auxiliary equipment, including inputs and outputs.
2.1 Installation Steps
These are the general steps for installation:
1. Find a space on the wall or table. For table top applications, install included
rubber feet. Allow approximately 6 inches in front of, and 6 inches above
the unit for user access to the controls and wiring.
2. Mount the unit to the selected place with its wiring at least 18” away from
power supply or other equipment that generates electrical noise.
4. Connect audio inputs and outputs.
5. Connect control inputs and outputs.
6. If you are using the optional power supply, make sure there is a standard,
non-switched electrical outlet available.
7. Connect and apply power.
8. Test unit operation.
2.2 Connector Descriptions
1 2
2.2.1. Power
Two terminal pluggable connector.
1 12VDC at 1 amp, or 15VDC at 900mA
2 Ground
2.2.2. Mic. Input
Microphone input for recording messages. Mono. 1/8” mini jack. Up to 1.5k
ohm impedance. This specification is compatible with most consumer grade
microphones (Radio Shack Omni-directional Dynamic P/N 33-2001).
NOTE:
Mic input and Line input may not be used at the same time. Make sure
Line input is disconnected for the microphone to work properly.
2.2.3. Line Input
Line level analog audio input for recording messages. Mono. Unbalanced,
RCA connection, 10k ohm impedance. Compatible with the unbalanced
analog outputs of most tape decks, CD players, DAT players, etc.
NOTE:
Line input and Mic input may not be used at the same time.
2.2.4. Line Output
Line level analog audio output for playing messages. Mono. Unbalanced,
RCA connection, 150 ohm impedance. Compatible with the unbalanced
analog inputs of most audio equipment.
2.2.5. 8 Ohm Output
1 2
Two terminal pluggable connector.
1 Bridged amplifier
2 Bridged amplifier output -
CAUTION: Referencing either of the speaker output terminals to ground
will cause incorrect operation and may damage the unit. Always connect
the speaker directly across the supplied terminal connections.
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Summary of Contents for Minimac 2 MMD-USB
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