SENSITIVITY SWITCH OF VERIFACT C MICROPHONE
For special installations that require less microphone sensitivity or where there is background noise, a sensitivity switch is
mounted to the microphone pre-amp (PC Board) and has two positions, N and L:
N represents normal sensitivity (0dB ouput into 1k
Ω
)
L represents low sensitivity (-6dB output into 1k
Ω
)
Louroe VERIFACT™ microphones are always shipped with the sensitivity switch in normal (N) position. Do not change
unless necessary. To change the sensitivity setting, use a small screwdriver and move slide switch from N to L position.
The switch is mounted on the back side of the microphone housing.
NOTE REGARDING INTERFACING ASK-4 #101C WITH A DVR OR PC SOUNDCARD
The APR-1 Audio Base Station of ASK-4 #101C is compatible with all commercial DVR’s and PC Soundcards
that accept line level input (0dB@600
Ω
or higher). An RCA cable is included with the kit for connecting
Audio
Out
to
Audio In
of DVR. If DVR’s audio input is a 3.5mm jack, an RCA to 3.5mm adapter (not supplied) must
be attached to the plug that connects to DVR’s
Audio Input
. Check with DVR’s specifications to determine if
the audio input requires a
stereo
or
mono
3.5mm plug.
PC soundcards contain a standard
3.5mm stereo
Audio Input
or
Line Input
.
Do not use Mic Input
of
soundcard. Louroe microphones are line level (0dB@600
Ω
) and will overdrive the Mic Input. Use “
Audio
Input
” or
Line Input
” of the soundcard.
INSTALLATION AND OPERATING INSTRUCTIONS
N
I
E
D
U
A
SA
M
+12 Vdc
INPUT
OUTPUT
AUDIO
B
A
C
MIC INPUT
VAN NUYS, CA
[10]
[11]
[12]
[13]
[10]
Power Jack
Accepts 12Vdc power from Model AD-1 Power Supply
(included with APR-1 Audio Base Station). AD-1 has a 90
°
2.1mm female plug.
[11]
AUDIO IN Jack (RCA)
Accepts audio playback from an external source (DVR/VCR).
Audio playback is produced through the speaker. The Push for Playback
[7]
must be “IN” during audio playback and “OUT” when
not used for playback.
[12]
AUDIO OUT Jack (RCA)
Provides audio output and connection to a DVR, VCR, etc.
[13]
Audio Terminal Block
A 3-pin terminal block marked A, B, C.
Accepts wiring from the remote Louroe™ Microphone.
A is 12Vdc Power
B is Audio
C is Ground
REAR PANEL LAYOUT OF APR-1
Page 3 of 8
LOUROE ELECTRONICS 6 9 5 5 VA L J E A N AVENUE, VAN NUYS, CA 91406
TEL (818) 994-6498
FAX
994-6458
website: www.louroe.com e-mail: [email protected]
(818)
®
ASK4_101C_inst 2/15
®
