Wiring Hookups For Different Sources; Compatible Wiring For Both Servo Bias Inputs And Earlier Transmitters; Simple Wiring - Can Only Be Used With Servo Bias Inputs - Lectrosonics SMDB/E01 Series Instruction Manual

Wiring Hookups for Different Sources

In addition to the microphone and line level wiring
hookups illustrated below, Lectrosonics makes a num-
ber of cables and adapters for other situations such
as connecting musical instruments (guitars, bass
guitars, etc.) to the transmitter. Visit www.lectroson-
ics.com and click on Accessories, or download the
master catalog.

Compatible Wiring for Both Servo Bias Inputs and Earlier Transmitters:

Fig. 1
2 VOLT POSITIVE BIAS 2-WIRE ELECTRET
Compatible wiring for microphones such as
Countryman E6 headworn and B6 lavaliere.
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
SHIELD
1
1.5 k
2
4
A UDI O
3
3
3.3 k
4
T A5 F
5
PLUG
PIN
2.7 k
1
2
4
3
3
4
5
T A5 F
PLUG
SHIELD
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
1
5
2
XLR JACK
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
1
2 VOLT POSITIVE BIAS 2-WIRE ELECTRET
5
2
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.
Super-Minature Belt Pack Transmitters
*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.
SLEEVE
SHIELD
A UDI O
TIP
TA5F
PLUG
PIN
1
2
4 1
5
3 2
3
4
T A5 F
5 PLUG
13