Lectrosonics ISO9VOLT Technical Data

ISO9VOLT
Battery Eliminator for UM & UH Series Transmitters
• Allows external powering of Lectrosonics
aluminum transmitters
• Standard 9 volt battery contacts and DC input
jack on "dummy battery"
• Modified battery doors available for both Belt-
Pack and Plug-On transmitters with flip-open
style battery doors
• Preserves use with regular alkaline or lithium
batteries
The ISO9VOLT battery eliminator allows Lectrosonics
wireless transmitters with hinged battery doors designed
for 9 volt batteries to be operated from external power
sources. 10 to 18 volt DC is converted to regulated 9 volt
DC to power the transmitter at the battery terminals inside
the battery compartment. The modified door exposes the
connector for the external power source yet still operates
with regular dry cell batteries. The unit can supply up to
200 mA to work with the 250 mW transmitters. It is fused
and protected from reverse polarity.
The unique design isolates the power ground from the
audio ground in the transmitter allowing the unit to be
used in "bag systems" common in field production. When
the mixer, receivers and wireless transmitters in a bag
are powered by a common battery, a ground loop is often
created which can cause high frequency noise (whining
or hiss) in the audio. The output of a DC/DC converter in
the ISO9VOLT is passed through a transformer, rectified
and then controlled by a regulator to produce the final DC
power presented on the battery contacts.
The ISO9VOLTM model is a kit including the battery eliminator
and a modified battery door that fits any Lectrosonics UM type
belt-pack transmitter with a hinged type door as shown here.
"H" Kit:
Modified door for
Plug-On "UH"
transmitters
The battery eliminator is not recommended for use with
any devices other than the Lectrosonics transmitter types
shown here. Use with any other device will void the fac-
tory warranty. Lectrosonics will not accept responsibility
for damage to nor ensure proper operation with any other
devices.
NOT FOR USE WITH TRANSMITTERS THAT
HAVE ROTATING TYPE BATTERY DOORS.
The ISO9VOLTH kit includes a
modified battery door that fits
any Lectrosonics UH type
plug-on transmitters.

TECHNICAL DATA

"M" Kit:
Modified door for Belt-Pack
"UM" transmitters
Rio Rancho, NM, USA
www.lectrosonics.com