Audio-Technica ATW-DA49 - Manual (Page 3)

Rear Panel Controls and Functions (Fig. B)
3. CHANNEL “A” ANTENNA INPUT: Attach the “A” antenna
here, or extend it with a low-loss antenna cable. (Antenna
and cable not included.)
4. CHANNEL “A” DISTRIBUTION OUTPUTS: Four jacks
provide RF distribution to receivers operating within the
440-900 MHz range. Each output should be connected to
only one other antenna input. Unused outputs do not
require termination.
5. CHANNEL “B” ANTENNA INPUT: Attach the “B” antenna
here, or extend it with a low-loss antenna cable. (Antenna
and cable not included.)
6. CHANNEL “B” DISTRIBUTION OUTPUTS: Four jacks
provide RF distribution to receivers operating within the
440-900 MHz range. Each output should be connected to
only one other antenna input. Unused outputs do not
require termination.
7. DC OUTPUT JACKS: Provides 12V DC (center positive) at
up to 500 mA from each jack to power receivers. Connect
the included ATW-RDCN cables here to supply 12V DC to
up to four ATW-R2100 or ATW-R3100 (or like-powered)
receivers.
8. DC POWER INPUT: 3-pin header connector for +12V DC
power input.
Active Antenna Power Switch (Fig. C)
NOTE: ATW-A49 antennas do not require power. If you are
using ATW-A49 antennas, or any passive antennas, leave
the switch in the factory-set OFF position. If you have an
antenna system that requires power (such as an antenna preamp
or booster) you must open the ATW-DA49 assembly and
activate a switch on the circuit board. See Fig. C. (This enables
the antenna distribution system to pass power through to the
antenna.) Current consumption of the preamp or booster should
not exceed 100 mA.
9. The unit is shipped with the switch in the “off” position.
To change the switch to the “on” position, first be certain
the ATW-A49 is not attached to any power source. Next,
use a Phillips screwdriver to remove the four cover screws;
remove the cover; move the switch into the “on” position.
Finally, replace the cover and securely tighten the screws.
Front-mount Antennas–ATW-RM1 Rack Mount Hardware
Kit (Fig. D)
10. The ATW-RM1 rack-mount hardware kit (includes rack ears
and hardware) is provided to permit attachment in a standard
19" audio equipment rack.
11. Antennas may be mounted on the front of the long rack
ear.
The following parts are included in the kit: Long rack ear;
short rack ear; two BNC bulkhead connectors with mounting
hardware; two 34" BNC-to-BNC cables; six rack-mount screws.
Assembling the ATW-RM1 Rack Mount Hardware Kit (Fig. D)
• Remove the nut and lock-washer from each bulkhead
connector. Install the connectors from the front into the
two holes in the long rack ear (see Fig. D). Note that the
flat on the threaded section must be aligned with the flat in
each panel hole.
• Install the lock-washer and nuts (included) over the back of
each bulkhead connector. Secure each connector from the
back with its lock-washer and nut, tightening the nut firmly.
• Connect one end of each provided BNC-BNC cable to the
rear antenna input jacks on the back of the antenna
distribution system amplifier. Attach the other end of each
cable to the back of the BNC bulkhead connectors. Make
certain the bayonet twist-rings are fully latched on the
connectors at both ends.
• Finally, mount the receiver's antennas to each of the BNC
bulkhead connectors.
Figure B Rear Panel
7 3 5 4 6 8
Figure C Antenna Power Switch
Figure D Front-mount Antennas
10 11 11
Installation and Operation continues on back page 3
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