2.2.10. Audio Out SPKR
Bridged, mono speaker output for playing messages. 2 position
terminal connector. 4 watts into 8 ohms or 6 watts into 4 ohms.
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 output.
2.2.11. USB connector
USB type “A” connector for use with a USB memory key. The
MacFi-se will upload or download audio files to/or from the USB
key based on the folder names in the root folder of the memory
key. See descriptions of supported folder names:
“Complete”:
ALL files on MacFi-se will be deleted and replaced
with audio files from this folder.
“Delta”:
Audio files of the same name will be replaced with files
from this folder.
“Upload”
: When the MacFi-se detects a memory key with only
an empty Upload folder, and no other folders, all audio files will
be copied from the MacFi-se into this folder on the memory key.
If more than one folder above exists on the key, no files will be
transferred and an error will be indicated.
See Section 2.4 for the file types supported by the MacFi-se.
2.3 Pushbutton & LED Configuration
Pushbuttons and LED’s are located on the top of the MacFi-se
allowing easy and convenient message recording and playback.
The following describes use of the Status and Message
Sections.
2.3.1. Overdrive Indicator
This red LED monitors the level of
the recording input. Overdriving
the system will cause audio to
clip, adversely effecting sound
quality. Monitor the input material
and set the input level just below
overdrive for the best results.
Off
Input is not overdriving the
system
On
Input is overdriving the
system, reduce Audio In
Level
2.2.4.
Expansion Interface Connector
Used for remote activation of recording.
1. Record Input, connect to common on Connector 1 to enter record
setup mode.
2. Sync Relay Output, Common
3. Sync Relay Output, Form A, connects to position 11 when playing.
For remote recording procedure, reference section 3.2.
2.2.5. Audio In Level
Potentiometer to adjust record level. +4dBm max input level.
2.2.6. Audio In Mic
Microphone input for re
cording 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 and Line input
may not be used at the same time. Make sure Line input is
disconnected on the unit for the microphone to work.
2.2.7. Audio In Line
Line level analog audio input for recording messages. Mono. RCA
connection, 10kohm impedance. Compatible with the unbalanced
analog outputs of most tape decks, CD players, DAT players, etc.
2.2.8. Audio Out Level
Potentiometer to adjust playback level. Range is continuous from -
infinity to +4dBm.
2.2.9. Audio Out Line
Line level analog audio output. Transformer isolated, RCA
connection, 600 ohm impedance. Compatible with the
unbalanced analog inputs of most audio equipment.
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