3. REAR VIEW
(1) Power supply fuse
3 A fuse.
(2) Power supply input
To power the DVA-102ETH, connect a power supply of
24 V DC / 2 A to this input.
(3) Input contacts 1 to 19
(4) Output contacts 1 to 19
(5) RX and TX indicators
Their blinking indicates transmission (TX) or reception
(RX) of data through the RS485 port.
(6) RS485 IN connector
RJ45 type connector. This is used to connect the
DVA-102ETH to the RS485 communication bus.
(7) RS485 OUT connector
RJ45 connector. Used to give continuity to the RS485
bus. If this output is used, the RS485 ON/OFF switch
(8) must be moved to the ON position.
(8) RS485 OUT ON/OFF switch
In the ON position, the RS485 output is activated.
(9) Ground to chassis connection
(10) RS485 ADDRESS DIP switch
In mixed or analog installations, the DVA-102ETH
communicates with the various elements of the
SMP-250 system (SU-114N, UMX-02/0, MD-500,
MD500EM...) through an RS485 bus. By means of this
DIP switch a communication address can be assigned to
the unit, inside the RS485 bus. Each unit connected to
an RS485 bus must have a different address. To
configure it, refer to section 4.
(11) AUDIO OUTPUT connector
Balanced analog output of 0 dBm, through the RJ45
connector. To connect it, refer to section 7.4.
(12) AUDIO INPUT connector
Balanced analog input of 0 dBm, through the RJ45
connector. To connect it, refer to section 7.2.
(13) AUDIO EMERGENCY INPUT connector
Analog local input, balanced, with an RJ45 connector
and a sensitivity of 0 dBm, especially suitable for
receiving emergency announcements.
It takes priority over any other signal (ETH inputs,
AUDIO INPUT and pre-recorded messages). To connect
it, refer to section 7.3.
(14) FAIL relay
This is activated when the unit is switched off, when a
failure in the Ethernet connection is detected or an
internal communication error occurs.
(15) IP ADDRESS DIP switches
The IP address of the unit is configured through these 4
DIP switches. This address identifies the DVA-102ETH
in the network, so each unit must have a unique
address.
(16) Ethernet B connector
RJ45 type connector. Used, in a redundant network, as
a secondary connection to the IP network. In
installations with a redundant network, if the
connection to ETH A fails, the unit automatically
switches to this B connection, so that the PA system
continues to operate.
(17) Ethernet B input 10 Mb indicator
Indicates the speed of the Ethernet network connected
to the Ethernet B input. If the LED is lit, it indicates a
speed of 10 Mb. If it is not lit, it indicates a network
speed of 100 Mb.
(18) Ethernet B input ACT indicator
When lit, it indicates that data is being sent or received
through the ETH B input.
(19) Ethernet B input LINK indicator
When lit, it indicates the connection of the ETH B input
with the HUB or SWITCH.
(20) Ethernet A connector
RJ45 type connector. Used for connection to the IP
network.
(21) 10 Mb, ACT and LINK LED indicators of the
Ethernet A input
These serve the same purpose as the ETH B indicators,
applied in this case to the ETH A input.
(22) CTRL OUT strip
Not used.
(23) COMPACT FLASH memory