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Description of Parts
AP-1TB
[1]
Power-Volume
Control
Turns ON power to the unit as indicated by the
Power LED[3]. Turning the knob more clockwise
increase the volume of the monitored audio heard at
the Speaker[9]
[2]
Headphone Jack
Used for private listening. Any 3.5mm stereo
headphone with 8Ω to 600Ω impedance may be
used. Mutes AP-1TB speaker output when in use.
[3]
Power LED
Lights when Power-Volume Control[1] is turned ON
indicating power to the unit.
[4]
Zone Switch
Press to activate two-way audio monitoring.
[5]
Talkback MIC
Built-in microphone for talkback.
[6]
Playback/Mute
Switch
Used when playing back audio from a recorder or
mute the audio from the microphone. No audio is
heard on the Speaker[9] when this switch is ON.
[7]
Talkback Volume
Control
Rotate clockwise to increase the loudness of audio
heard at the remote Speaker/MIc unit. Rotate
counterclockwise to decrease the level of audio
heard at the remote Speaker/Mic.
[8]
Talkback Switch
Hold down and talk so audio can be heard at the
remote Speaker/Mic unit.
[9]
Monitor Speaker
Monitored audio is heard at this speaker. Muted
when a headset is plug into Headphone Jack[2]
[10]
Audio-In Jack
Receives audio from an external source (recorded
playback from a DVR or VCR).
[11]
Audio-OUT Jack
Sends audio to an external receiver (DVR, VCR, etc.)
[12]
MIC 6-Pin Terminal
Connects to speaker/microphone at remote location.
[13]
DC-IN Jack
Accepts 12 Vdc from external power supply (AC
Adapter included).
KIT CONTENT
PRD #
Description
AP-1TB (LE-001)
A single zone desk top audio base station. Contains a
built-in microphone and speaker for listen and talkback
with the remote unit (Model TLM-W). Has input/output
to DVR/VCR for live audio and playback.
TLM-W (LE-007)
Two-way speaker/microphone - contains an electret
condenser microphone and a 2.5” speaker. Included
is a plastic backbox for surface mounting to a wall or
flat surface.
AD-1 (LE-242)
listed AC ADAPTER. Supplies 12 Vdc to AP-1TB
and TLM-W.
Dual RCA Connector
Cable
For output/input connection to a DVR/VCR for audio
recording and playback.
ASK-4
®
# 501
AUDIO MONITORING SYSTEM
INSTALLATION AND OPERATING INSTRUCTIONS
ASK-4
®
# 501 (LE-025)
INTRODUCTION
The ASK-4® 501 is a single zone audio monitoring system with 2-way talk/listen capabilities. It consists of a remote speaker/microphone and audio base
station with built-in microphone and speaker..
AUDIO
IN
AUDIO
OUT A B C SP G P
+12Vddc
500mA
10
11 12
13
1
2 3 4 5
6
7
8
9
TLM-W
AP-1TB
