Lectrosonics AM16/12 Operating Instructions Manual page 5

It is permissible to run LEDs from the +5VDC pins on the programmable input connector, as long as the total LED
current for all LEDS on does not exceed 100mA. Similarly, 5V relay coils may also be run from the +5VDC pins on
the programmable input connector, as long as the total coil current for all relays on does not exceed 100mA. Note
that the diagram shows an external DC source powering the relay coil. This will be necessary if coil voltages above
5V are needed.
Audio Expansion In/Out
When multiple AM16/12s are used in an application, their Audio Expansion ports must be interconnected using the
Audio Expansion In/Out connectors on the rear panel of the AM16/12. These two 30 pin headers are just to the right
of the LecNet (RS232) jack on the rear panel. A 3" 30 conductor ribbon cable is supplied with each AM16/12 for this
purpose. When installing the AM16/12s in a rack, the Master AM16/12 should be mounted in the top of the rack, with
Slave AM16/12s mounted below the Master AM16/12. The ribbon connector then connects the Audio Expansion In
connector of the Master AM16/12 to the Audio Expansion Out connector of the first Slave AM16/12. If there are
more than one Slave AM16/12s, the Audio Expansion In connector of the first Slave AM16/12 is connected to the
Audio Expansion Out connector of the second Slave AM16/12, and so on for as many Slave AM16/12s as exist in the
system.
PWR
IN
EXPANSION
(PS60)
M
OUT IN
A S
S L
16.5 VAC
T A
E V
R E
Switch in
PHANTOM POWER
OFF
"MASTER" 16 15 14 13 12 11 10 9 8 7 6 5
position
PWR
IN
EXPANSION
(PS60)
M
OUT IN
A S
16.5 VAC S L
T A
E V
R E
Switch in
PHANTOM POWER OFF
16 15 14 13 12 11 10 9 8 7 6 5
"SLAVE"
position
PWR
IN
EXPANSION
(PS60)
M
OUT IN
A S
16.5 VAC S L
T A
E V
R E
Switch in
PHANTOM POWER OFF
"SLAVE"
16 15 14 13 12 11 10 9 8 7 6 5
position
Connecting multiple AM16/12s together
AUDIO EXPANSION OUT
LecNet
(RS232)
AUTOMATIC MATRIX MIXER
AUDIO EXPANSION IN
ON
GAIN
16
16 15 – +
4 3 2 1
AUDIO EXPANSION OUT
LecNet
(RS232)
AUTOMATIC MATRIX MIXER
AUDIO EXPANSION IN
ON
GAIN
16
– +
4 3 2 1 16 15
AUDIO EXPANSION OUT
LecNet
(RS232)
AUTOMATIC MATRIX MIXER
AUDIO EXPANSION IN
ON
GAIN
16
– +
4 3 2 1 16 15
To additional AM16s
Rio Rancho, NM – USA
1 - GND 6 - IN 4
2 - IN 1 7 - GND
3 - IN 2 8 - IN 5
4 - GND 9 - IN 6
5 - IN 3 10 - GND
PROGRAMMABL
INPUTS
GAIN
15
– + 14 13
1 - GND 6 - IN 4
2 - IN 1 7 - GND
3 - IN 2 8 - IN 5
4 - GND
9 - IN 6
5 - IN 3 10 - GND
PROGRAMMABL
INPUTS
Switch in
GAIN
15
– +
14 13 "MASTER"
position
1 - GND 6 - IN 4
2 - IN 1 7 - GND
3 - IN 2 8 - IN 5
4 - GND 9 - IN 6
5 - IN 3 10 - GND
PROGRAMMABL
INPUTS
GAIN
15
– +
14 13
Connecting the AM16/12 to the TH3A
16 Channel Automatic Matrix Mixer
AUDIO EXPANSION OUT
PWR
IN
EXPANSION
(PS60)
M
LecNet
OUT IN
A S
16.5 VAC S L (RS232)
T A
E V
R E
AUTOMATIC MATRIX MIXER
AUDIO EXPANSION IN
PHANTOM POWER
OFF ON
16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
AM16/12 Rear Panel
PWR
EXPANSION
IN
OUT IN LecNet
(CH40)
(RS232)
20 VAC
TH3A Rear Panel
1 - GND 6 - IN 4
2 - IN 1 7 - GND
3 - IN 2 8 - IN 5
4 - GND 9 - IN 6
5 - IN 3 10 - GND
PROGRAMMABL
INPUTS
GAIN GAIN
16 15
16 15 – + – + 14 13
5