6955 VALJEAN AVE. VAN NUYS, CA 91406 PH: 818-994-6489 | FAX: 818-994-6485 | [email protected] | WWW.LOUROE.COM
AP-2TB
AUDIO MONITORING BASE STATIONS
INSTALLATION AND OPERATING INSTRUCTIONS
INSTALLATION INSTRUCTIONS
WIRING CONNECTIONS BETWEEN AP-2TB AND REMOTE SPEAKER/
MICROPHONE. (TLM-W is used as an example only. Use same con-
nections for other speaker/microphones units.)
1. Connect one end of cable to remote speaker/microphone as
shown in the interconnection diagram. Use 4 conductor shield-
ed audio cable such as West Penn 356. Connect wires wrapped
with overall shield to terminals “A”, “B”, and “C” of Speaker/
Microphone’s terminal block. When using sample color coded
cable, connect red wire to terminal “A”; black wire to terminal
“B” and bare wire to terminal “C”.
2. Connect the other two wires of TLM-W 70V transformer (twisted
pair) to the “SP” and “G” of AP-2TB using wire nutts. Connect
cable’s green wire to terminal marked “SP”. Connect cable’s
white wire to terminal marked “G”.
3. Connect the other end of the cable to AP-2TB Mic 6-Pin Terminal
Block [13] for Zone 1. Make sure that wire connected to terminal
“A” of remote speaker/microphone connects to terminal “A” of
AP-2TB’s Mic 6-Pin Terminal Block [13]; wire connected to ter-
minal “B” of speaker/microphone connects to terminal “B” of
AP-2TB; “C” to “C”, “SP” to “SP” and “G” to “G”. Terminal “P”
of AP-2TB is used only when paralleling to a second AP-2TB (or
more). Observe cable color coding.
4. Repeat connections for Zone 2.
5. When a recording device is used, connect Audio-OUT Jack [12]
to recorder’s Audio-IN Jack with an RCA cable (not supplied).
6. Connect Audio-IN Jack [11] to recorder’s Audio-OUT Jack with
an RCA cable.
7. Plug AC Adapter (supplied) to DC-IN Jack [14]
OPERATION AND TEST
1. First plug DC output of AC Adapter to DC-IN Jack [14],then plug
AC Adapter to 120 Vac supply.
2. Turn power to the unit by rotating to ON position, the Power-Vol-
ume Knob[1]. The Power LED[3] will light.
3. Push in to activate Zone 1 Switch [4]. Zone Switch is lighted in-
dicating two-way audio monitoring is activated. Audio should be
present at the Monitor Speaker [10]. If there is no audio, with
a voltmeter, check for 12 Vdc at terminals “A” and “C”. Place
positive lead of voltmeter to terminal “A” and negative to “C”. If
voltage is not present, there might be a short on the wiring that
may cause the resettable fuse to open. Check that wires are con-
nected properly to the correct terminals. Otherwise microphone
is defective. Call factory for assistance. Adjust volume of audio
by rotation the Power-Volume Knob[1] clockwise to increase or
counterclockwise to decrease.
4. Press and hold Talkback Switch [9] and speak into Talkback
MIC[6]. To increase or decrease the audio heard at the remote
speaker/microphone unit, rotate Talkback Volume Knob[8] clock-
wise to increase or counterclockwise to decrease. Another per-
son is needed to listen to the volume and clarity of talkback at the
remote location..
5. Repeat test for Zone 2.
6. When a recording device is connected to the unit, press record
and record live audio into the DVR/VCR. Press Playback/Mute
Switch [7] to playback. Switch indicator will light and the audio
from the remote microphone is muted. The unit is ready for re-
ceiving audio playback from a recorder.
7. Playback/Mute Switch[7] can be used to mute live audio coming
from the remote microphone. Audio comes back in when this
switch is depressed.
AP-2TB (LE-402)
Input sensitivity
(from remote microphone)
0.78Vrms
Input sensitivity
(talkback microphone)
-45 dB
Monitor power output
1
W
@ 8
Ω
Talkback power output
1W into 70V Line
Audio line output impedance
600
Ω
Audio input impedance
10k
Ω
Audio frequency response
100 Hz to 10kHz
Headphone impedance
8Ω to 600
Ω
Power input
12 Vdc, 500mA
Dimensions
7.9”L x 6.6”W x 2.4”H
Weight
2.09 lbs (0.95kg)
6955 VALJEAN AVE. VAN NUYS, CA 91406 PH: 818-994-6489 | FAX: 818-994-6485 | [email protected] | WWW.LOUROE.COM
