Owner manual

DM84 Installation Guide
Rio Rancho, NM
9
Expansion I/O ports
ThefourRJ45connectorsontherearpanelareused
to interconnect LecNet2™ units together. These ports
are only used to transfer digital audio information via
the Digital Audio Network Interface (DANI) between the
units.
WARNING: The Expansion I/O connectors are
NOT EtherNet, CobraNet or any other network
based device interconnects. Connecting them
to Ethernet, CobraNet or other network based
device may cause damage to either unit.
In a stacked configuration, one unit must be configured
as the Master unit and the others as Slave units. Con-
figuring a unit as a Master or a Slave can be done using
theControlPanelGUIinterface.
Note: In order to use the convenient Control Panel
GUI,LecNet2™mustbeinstalledontheattached
computer system. (See Installing LecNet2™
Software and USB Driver.)
To connect the Master/Slave units, plug one end of a 12
inch Cat5e cable (two are supplied with each with unit)
to the transmit (TX) port on the Master unit, and con-
nect the other end to the corresponding receiver (RX)
port on the Slave unit immediately below the Master.
Repeat this procedure with the second Cat5e cable.
(See Expansion Port Digital Audio Network Interface
Interconnection Diagram.)
CAUTION: Do not connect these ports to each
other on a single unit, and to not cross the
cables between the units.
Master/Slave Configuration
When stacking multiple units, one unit is always set as
the Master and all subsequent units are set as Slaves.
TheControlPanelGUIinterfaceisusedtodothis.
DM84 Rear Panel
LecNet 2
Expansion I/O PortsProgrammable
Inputs and Outputs
PROGRAMMABLE INPUTS/OUTPUTS
1 - GND
2 - IN 1
3 - IN 3
4 - IN 5
5 - IN 7
6 - IN 9
7 - IN 11
8 - GND
9 - OUT 1
10 - OUT 3
11- OUT 5
12 - OUT 7
13 - GND
14 - +5V
15 - IN 2
16 - IN 4
17 - IN 6
18 - IN 8
19 - IN 10
20 - +5V
21 - OUT 2
22 - OUT 4
23 - OUT 6
24 - OUT 8
25 +5V
1
13
ccw cw
ccw cw
ON
OFF
OUT 3
OUT 4
OUT 1
IN 1
IN 2
IN 3
500 Ohms
500 Ohms
500 Ohms
LED
LED
LED
Potentiometer
Potentiometer
Switch
Three Programmable Inputs:
2 - 10 K linear potentiometers
for volume control
1 - To bble switch for muting
3 Programmable Outputs:
LEDS for function indicators
(380 to 500 Ohm resistors in-line
to avoid burning out LEDS)
NOTE
Common Connections can be used for
all voltage and ground connections
among all devices.