Operating instructions

TH3 WIRING GUIDE
Following are example wiring diagrams for various types of installations.
Example 1: AM8 MIXER
In this example, the TH3 is connected to an AM8 mixer,
and both local and remote signals are amplified. The
single LecNet cable passes signals both to and from the
AM8.
TH3
AM8
Switch in MASTER position
INPUT
Sound Reinforcement Amplifier
PWR
IN
(CH40)
OUT
IN
20 VAC
LecNet
(RS232)
EXPANSION
TELEPHONE
CODEC
REMOTE CONTROLS
PWR
IN
(CH40)
OUT
IN
MAIN OUT
+ –
CH8 IN
EXPANSION
REMOTE LEVEL
CONTROL
1 2 3 4
M
A
S
T
E
R
S
L
A
V
E
20 VAC
LECTROSONICS, INC.
LecNet
(RS232)
DIR
OUT
+
–
PWR
IN
(CH40)
OUT
IN
20 VAC
LecNet
(RS232)
EXPANSION
TELEPHONE CODEC
–
+
OUTPUT
LEVEL
–
+
IN OUT
AUX
REMOTE CONTROLS
AM8
Switch in MASTER position
INPUT
Sound Reinforcement Amplifier
PWR
IN
(CH40)
OUT
IN
MAIN OUT
+ –
CH8 IN
EXPANSION
REMOTE LEVEL
CONTROL
1 2 3 4
M
A
S
T
E
R
S
L
A
V
E
20 VAC
LECTROSONICS, INC.
LecNet
(RS232)
DIR
OUT
+
–
TH3
Example 2: AM8 MIXER, NO LOCAL
SOUND REINFORCEMENT
In this example, the TH3 is connected to an
AM8 mixer, and only the remote signals from
the TH3 are amplified. The single LecNet
cable passes signals both to and from the
AM8.
6