Wiring Hookups For Different Sources; Compatible Wiring For Servo Bias And Early Inputs; Simple Wiring - Servo Bias Inputs Only - Lectrosonics SMDa Series Instruction Manual

Wiring Hookups for Different Sources

In addition to the microphone and line level wiring hook-
ups illustrated below, Lectrosonics makes a number of
cables and adapters for other situations such as con­
necting musical instruments (guitars, bass guitars, etc.)
to the transmitter. Visit www.lectrosonics.com and
click on Accessories, or download the master catalog.
Compatible Wiring for Both Servo Bias Inputs and Earlier Transmitters:
Fig. 1
4 VOLT POSITIVE BIAS 2-WIRE ELECTRET
Most common type of wiring for lavaliere mics.
Fully compatible with 5-pin inputs on Lectrosonics
transmitters such as the LM and UM Series.
Fig. 2
4 VOLT POSITIVE BIAS 2-WIRE ELECTRET
Most common type of wiring for lavaliere mics.
Fully compatible with 5-pin inputs on Lectrosonics
transmitters such as the LM and UM Series.
Fig. 3
DPA MICROPHONES (Danish Pro Audio miniature models)
This wiring is for DPA lavalier
and headset microphones.
NOTE: The resistor value can range from 3k to 4k ohms.
Fig. 4
2 VOLT NEGATIVE BIAS 2-WIRE ELECTRET
SHIELD
AUDIO
Compatible wiring for microphones
such as negative bias TRAM models.
NOTE: The resistor value can range from 2k to 4k ohms.
Fig. 5
4 VOLT POSITIVE BIAS 3-WIRE ELECTRET
WITH EXTERNAL RESISTOR
DRAIN (BIAS)
Used for 3-wire lavaliere
microphones that require an
external resistor such as the
SOURCE (AUDIO)
Sanken COS-11.
This wiring is fully compatible with 5-pin inputs on Lectrosonics
transmitters such as the LM and UM Series. This is the wiring
for the Lectrosonics M152 lavaliere microphone.
Fig. 6
LO-Z MICROPHONE LEVEL SIGNALS
XLR JACK
For low impedance dynamic mics or electret
mics with internal battery or power supply.
Insert 1k resistor in series with pin 3 if attenuation is needed
Rio Rancho, NM
PIN
2.7 k
1
2
4
3
5
3 2
4
5
T A5 F
PLUG
SHIELD
Super-Minature Belt Pack Transmitters
A lot of information regarding microphone wiring is also
available in the FAQ section of the web site at:
http://www.lectrosonics.com/faq.htm
Follow the instructions to search by model number or
other search options.
Fig. 7
BALANCED AND FLOATING LINE LEVEL SIGNALS
XLR JACK
*NOTE: If the output is balanced but center
tapped to ground, such as on all Lectrosonics
receivers, do not connect Pin 3 of the XLR jack
to Pin 4 of the TA5F connector.
Fig. 8
UNBALANCED LINE LEVEL SIGNALS
LINE LEVEL
RCA or 1/4" PLUG
For signal levels up to 3V (+12 dBu) before limiting. Fully
compatible with 5-pin inputs on other Lectrosonics transmitters
such as the LM and UM Series. A 20k ohm resistor can be
inserted in series with Pin 5 for an additional 20 dB of
attenuation to handle up to 30V (+32 dBu).
Simple Wiring - Can ONLY be used with
Servo Bias Inputs:
Fig. 9
2 VOLT POSITIVE BIAS 2-WIRE ELECTRET
1
Simplified wiring for microphones
such as Countryman B6 Lavalier
and E6 Earset models and others.
NOTE: This servo bias wiring is not compatible with earlier
versions of Lectrosonics transmitters. Check with the factory
to confirm which models can use this wiring.
Fig. 10
2 VOLT NEGATIVE BIAS 2-WIRE ELECTRET
Simplified wiring for microphones such as negative bias TRAM.
NOTE: This servo bias wiring is not compatible with earlier
versions of Lectrosonics transmitters. Check with the factory
to confirm which models can use this wiring.
Fig. 11
4 VOLT POSITIVE BIAS 3-WIRE ELECTRET
NOTE: This servo bias wiring is not compatible with earlier
versions of Lectrosonics transmitters. Check with the factory
to confirm which models can use this wiring.
SLEEVE
PIN
SHIELD
1
2
A UDI O
TIP
3
4
5
TA5F
PLUG
4 1
5
3
2
T A5 F
PLUG
15