Louroe Electronics MLA-4 Manual

Louroe Electronics Ikke kategoriseret MLA-4

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Side 1/8
The MLA-4 is a microphone mixer with four audio inputs and one audio output. It is designed to combine up to
four microphones (or up to four speaker/microphones) to expand the listening area of an audio zone. The
MLA-4 is located between the microphones (or speaker/microphones) and the Louroe base station. In
addition, it has a line driver amplifier that allows for runs up to 5,000 ft. between the MLA-4 and the Louroe
base station and up to 1,000 ft. between the MLA-4 and the remote microphone (or speaker/microphone) for a
total of 6,000 ft.
MLA-4
MICROPHONE MIXER
INSTALLATION AND OPERATING INSTRUCTIONS
Microphone Only:
Louroe Verifact A, B, C, D, D-V, E, K or L-DT
Microphone/Speaker
Louroe Model TLI, TLM, TLMC, TLO, TLSP
4 Conductor consisting of:
+
2 Conductor , 20 gauge with shielded
22 gauge drain (microphone
connection)
+
2 Conductor , 18 gauge unshielded
(speaker connection)
All in the same jacket
R
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A
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6955 VALJEAN AVE, VAN NUYS, CA 91406
PH: (818)994-6498 / FAX: (818)994-6458
/ www.louroe.comtechsupport@louroe.com
®
®
Page 1 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: sales@louroe.com
(818)
®
mla_4_inst_3/15
2 Conductor cable, 22 shielded
gauge with a 24 gauge drain wire
NOTE: Unshielded cable is not
satisfactory for audio systems
West Penn 452 or equivalent
MICROPHONE CONNECTION:
At the top part of the PC board are 4 Terminal blocks marked 1 through 4 (for 4 zones). Each terminal
block has 5 Pins marked - A, B, C, SP and G . Bring in wire from remote microphone (or
speaker/microphone) and connect as follows:
Pin A (12 Vdc) from remote microphone to Pin A of MIC 1 terminal block of MLA-4(red wire)
Pin B (audio) from remote microphone to Pin B of MIC 1 terminal block of MLA-4(black wire)
Pin C (ground) from remote microphone to Pin C of MIC 1 terminal block of MLA-4.(bare wire)
Repeat connections for ZONE 2 to ZONE 4.
Use 2 Cond Shielded cable (see page1) if only microphones are to be connected.
SPEAKER CONNECTION (used only if microphone/speaker units are being connected):
Green wire from speaker to Pin SP of MIC1 terminal block of MLA-4
White wire from speaker to Pin G of MIC 1 terminal block of MLA-4
Repeat this connections for the rest of the zones.
Use 4 Cond shielded cable such as West Penn 356 (see page1) if microphone/speaker units are used.
POWER REQUIREMENTS
For Cable runs 1,000’ and under
If the total distance from the remote microphone (or speaker/microphone) to the MLA-4 Mixer and on to the
Louroe Base Station is under 1,000 ft., the MLA-4 will receive power from the base station. No power is
required at the MLA-4.
For Cable runs 1,000 to 5,000’
If cable run between MLA-4 and Louroe Base Station is over 1,000 ft and up to 5,000 ft, 12 Vdc power is
required. An input jack for power is located on MLA-4 chassis. For this length of run, MLA-4 should be
mounted within 1,000’ of the microphone.
IMPORTANT NOTE
1. If Model MLA-4 Mixer is to be powered for a cable run between 1,000 ft. and 5,000 ft. from the Louroe base
station, do not use terminal “A” connection between the MLA-4 and the Louroe base station.
2 For cable runs that exceed 1000 ft or up to 5,000 ft, MLA-4 Mixer should not be positioned more then 1,000
ft. from the Louroe microphone or speaker/microphone.
NOTE: If alternate power supply is
used, USE POWER DO NOT
SUPPLY IN BASE STATION
Page 2 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: sales@louroe.com
(818)
®
INSTALLATION AND OPERATING INSTRUCTIONS
mla_4_inst_3/15

Produkt Specifikationer

Mærke: Louroe Electronics
Kategori: Ikke kategoriseret
Model: MLA-4

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