Louroe Electronics AP-2TB User manual

6955 VALJEAN AVE. VAN NUYS, CA 91406 PH: 818-994-6489 | FAX: [phone] | [email protected] | WWW.LOUROE.COM
Description of Parts
AP-2TB
[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 1 Switch Press to activate Zone 1 for two-way audio
[5] Zone 2 Switch Press to activate Zone 2 for two-way audio
[6] Talkback MIC Built-in microphone for talkback.
[7] 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.
[8] 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.
[9] Talkback Switch Hold down and talk so audio can be heard at the
remote Speaker/Mic unit.
[10] Monitor Speaker Monitored audio is heard at this speaker. Muted
when a headset is plug into Headphone Jack[2]
[11] Audio-In Jack Receives audio from an external source (recorded
playback from a DVR or VCR).
[12] Audio-OUT Jack Sends audio to an external receiver (DVR, VCR, etc.)
[13] MIC 6-Pin Terminal Connects to speaker/microphone at remote location.
[14] DC-IN Jack Accepts 12 Vdc from external power supply (AC
Adapter included).
AP-2TB
AUDIO MONITORING BASE STATIONS
INSTALLATION AND OPERATING INSTRUCTIONS
AP-2TB (LE-402)
INTRODUCTION
The LOUROE AP-2TB is a two zone audio monitoring base station with a built-in microphone and speaker. When connected with a remote Louroe
Speaker/Microphone, it provides a bi-directional (2-way) communication system. Audio can be monitored by pushing in the zone switch. The blue light on
the switch indicates that the unit is in monitoring mode. The unit contains an “Audio Out” and “Audio In” jack for connection to a DVR/VCR for recording and
playback. A 3.5mm stereo headphone jack is provided for private listening. The AP-2TB is compatible with Louroe Speaker/Microphone Models TLI, TLM
Series, TLMC, TLO and TLSP.
AUDIO
IN
AUDIO
OUT
A B C SP G P A B C SP G P
+12Vddc
500mA
11 12 13 14
123 4 5678 9 10
AP-2TB

6955 VALJEAN AVE. VAN NUYS, CA 91406 PH: 818-994-6489 | FAX: [phone] | [email protected] | WWW.LOUROE.COM
AP-2TB
AUDIO MONITORING BASE STATIONS
INSTALLATION AND OPERATING INSTRUCTIONS
INTERCONNECTION DIAGRAM
WIRING REQUIREMENTS
4 Conductor consisting of: 2 Conductor shielded, 20
gauge with 22 gauge drain (microphone connection).
2 Conductor unshielded, 18 gauge (speaker connection)
All in the same jacket.
NOTE: Model AP-2TB Audio Base Station is supplied
with a 70V talkback output, which is standard for most
audio applications. Should a 600Ω talkback output be
required, please contact our factory for details regard-
ing instructions for switching over to 600Ω
REAR OF DVR
A B C
12Vdc
500mA
AUDIO
IN
AUDIO
OUT
12Vdc Power Supply
AD-1 (LE-242)
AUDIO OUT
AUDIO IN
VIDEO OUT
VIDEO IN
AP-2TB (LE-402)
TLM-W (LE-007)
Terminal Block identication of Model AP-2TB Audio Base Station
A Red 12Vdc
B Black Audio Input
C Bare Ground Mic
SP Green Speaker Positive
G White Speaker Negative
P Not used with this application.
Built in Microphone Connection
A Red 12Vdc
B Black Audio Output
C Bare Ground Mic
A B C SP G P
70V Transformer
Wire NUTS
Green (Posive)
White (Negave)

6955 VALJEAN AVE. VAN NUYS, CA 91406 PH: 818-994-6489 | FAX: [phone] | [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 1W@ 8Ω
Talkback power output 1W into 70V Line
Audio line output impedance 600Ω
Audio input impedance 10kΩ
Audio frequency response 100 Hz to 10kHz
Headphone impedance 8Ω to 600Ω
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: [phone] | [email protected] | WWW.LOUROE.COM

MADE IN U.S.A
IMPORTANT NOTICE
When this equipment is used as part of an audio moni-
toring system, the law requires that the public be given
notice of AUDIO MONITORING ON THE PREMISES. A
decal notice is included with each microphone shipped.
FEDERAL LAW REFERENCES:
Federal Regulations, US Code, Title 18. Crime and
Criminal Procedure, Sec 2510.
WARRANTY
LOUROE ELECTRONICS® warrants that at the time of shipment products
manufactured by LOUROE ELECTRONICS® to be free of defects in material
and workmanship. Should a defect appear within one year (12 months) from
date of shipment, LOUROE ELECTRONICS will, at its sole discretion, repair
or replace the defective equipment. This equipment shall not be accepted
for repair or return without prior notication by LOUROE ELECTRONICS®.
This warranty does not extend to any Louroe product that has been sub-
jected to improper or incorrect installation, misuse, accident, or in violation of
installation instructions provided by LOUROE ELECTRONICS®.
Returned shipments to LOUROE ELECTRONICS® shall be at customer’s
expense. LOUROE ELECTRONICS® will return the equipment prepaid via
best way.
6955 VALJEAN AVE. VAN NUYS, CA 91406 PH: 818-994-6489 | FAX: [phone]|
[email protected] | WWW.LOUROE.COM
WORLD LEADER IN AUDIO MONITORING TECHNOLOGY
AP-1TB
AUDIO MONITORING BASE STATIONS
INSTALLATION AND OPERATING INSTRUCTIONS
ABOUT LOUROE ELECTRONICS
Located in Van Nuys, California and 32 years young, Louroe Electronics™
has been the world leading Audio Manufacturer. Our continued growth has
resulted from providing innovative products, receiving high customer sat-
isfaction, maintaining strict devotion to quality standards and following the
law in Federal, State and Municipal Jurisdiction.
Our “Verifact” line of amplied microphones, complementing base stations,
and communication accessories, provide line level output to interface with
various digital electronics. Our products are compatible with a wide range
of digital video recorders, video cassette recorder, Internet Protocol Net-
work video systems, video servers and computer based recorders.
We are recognized worldwide for our variety of audio monitoring technol-
ogy. Our products are used in over twenty countries and are utilized in both
the private sector and government applications. We currently serve the
needs of law enforcement, security, health care, entertainment, hospitality
and retail industries and many more.
At Louroe Electronics we maintain rigorous standards to ensure our prod-
ucts provide reliability, durability and excellent performance for our custom-
ers’ needs. We are proud to continue designing, engineering and manufac-
turing at our headquarters base in Van Nuys, Cali fornia.
ap2tb_louroe/02.17.12