Audio-Technica ATW-DA49 User Manual

Professional UHF
Wireless Systems

ATW-DA49 Diversity UHF Antenna Distribution System, 440-900 MHz

Installation and Operation

Prior to use of this product, review all safety markings and instructions.

CAUTION

RISK OF ELECTRIC

SHOCK

DO NOT OPEN

To prevent electric shock, do not remove the cover. There are no
user-serviceable parts inside. Internal adjustments are for qualified
professionals only. Refer all servicing to qualified service personnel.

Pour prévenir un choc électrique, ne pas ouvrir le couvercle. Il n’y
aucune pièces de rechanges à l’intérieur. Tout ajustement interne
doit être fait par une personne qualifié seulement. Référez tout
réparation au personnel qualifié.

Warning/Attention:

To prevent fire or shock hazard, do not
expose this appliance to rain or moisture.
Pour prévenir feu ou choc électrique, ne pas
exposé l’appareil à la pluie ou à l’humidité.

AVIS

RISQUE DE CHOC

ÉLECTRIQUE

NE PAS OUVRIR

ATW-DA49 Installation and Operation

The ATW-DA49 is a UHF active unity-gain diversity antenna
distribution system that enables one pair of antennas to feed
multiple wireless systems. One ATW-DA49 unit can support up
to four wireless receivers.

A wide-band unit that operates over a nominal 440-900 MHz
range, the ATW-DA49 is designed to complement
Audio-Technica 2000 and 3000 Series wireless systems. It is
also suitable for many other wireless systems (with external
BNC antenna connections) operating within the 440-900 MHz
range.

WARNING: This apparatus must be grounded.

This product is a safety class 1 product. There must be an
uninterruptible safety earth ground from the main power
source to the product’s AC input. Whenever it is likely that
the protection has been impaired, disconnect the power cord
until the ground has been restored.

ATTENTION: Cet appareil doit être mise à la terre.

Cet appareil est de classe de sûreté 1. Il doit y avoir un
ininterrompable de mise à la terre de sécurité provenant de
la source principale de courant de l’appareil de l’entrée du
courant alternatif. Quand la protection a été affaiblie, débrancher
le fil de courant jusqu’à la mise à terre a bien été réétablie.

The detachable IEC type power input cord supplied is intended for
use in regions with mains voltage in the range of 100–125VAC
only. Use only the furnished power cord that includes the
appropriate NEMA 5-15P/ANSI C73.11 type attachment plug.

For use in geographical areas with mains voltage outside of the
range 100–125VAC, it is necessary for the user to utilize a power
cord rated and configured for operation in their region. Replace the
supplied power cord with a cord rated for correct voltage operation.

Power Connections

The switching power supply is designed to operate properly
from any AC power source 100-240V, 50/60 Hz without user
adjustment. Simply connect the power supply to a standard AC
power outlet,

approved for the country of use

using only an IEC 320-type input cordset

.

Front Panel Controls and Functions (Fig. A)

1. POWER SWITCH: Press switch to apply power to unit.
Press again to turn unit off.

The ATW-DA49 provides two identical sections, one for each
antenna of a UHF diversity wireless system. Each section in
the unit comprises an antenna input and four isolated receiver
outputs. All RF connectors are BNC-type. Ten BNC-to-BNC RF
interconnect cables are included with the unit.

Antennas can be remotely located from the unit. However, due
to signal loss in cables at UHF frequencies, use the lowest-loss
RF cable type(s) practical for any cable runs over 25 feet. RG-8
is a good choice. Use only copper-shielded cable, not CATV-type
foil-shielded wire. The included ATW-RM1 rack-mount hardware
kit with RF cables and connectors permits front-panel antenna
mounting.

Either passive or active antennas may be used. Both input
jacks offer switchable +12 V DC output on their center pins to
operate Audio-Technica powered antennas or other in-line RF
devices if desired. Up to 100 mA can be drawn from each
antenna input jack.

Four jacks on the rear panel (controlled by the unit's power
switch) provide 12V DC (center positive) to power as many as
four receivers operating on 12 volts at up to 500 mA each.
Included with the unit are four DC cables appropriate for use
with ATW-R3100 or ATW-R2100 (or like-powered) receivers.

The 12-volt supplies for powering receivers are short-circuit
protected. The unit features all-metal construction for extreme
durability and protection from radio frequency interference.

2. POWER INDICATOR: The indicator will light when power is
applied.

Figure A Front Panel

1

2

2