S/PDIF device can connect to AES-3 input/output of
ADA102 using an S/PDIF to AES-3 adapter.
No software setting is needed to enable AES-3. Decoded
audio are always sent to Analog and AES-3 outputs.
1.2.3
LAN port
Standard Ethernet RJ45 10/100 to connect the unit to
a switch/router to send or receive audio streaming.
1.2.4
USB port
Lets plug in a flash memory storage (Pen Drive)
when the unit works as a decoder, so that in case of
loss of streaming, the decoder switches to the Pen
Drive to continue with the audio playback. USB 1.1
compatible devices are supported, with the following
limitations:
•
Only mass storage devices are supported.
•
HUB's are not supported (some flash drives have an internal
HUB)
•
4GB
is the maximum capacity. If the flash disk is larger, create
a 4 GB partition. Only the first partition is supported.
•
First partition mus be
FAT16
format.
If your computer does not recognize the pen drive,
the following procedure can help you find the reason:
•
Open an Internet browser, enter the ADA102 IP address
followed by /status (i.e.: 102.168.0.110/status).
•
Scroll down until "USB device info"
•
Check if "Filesystem type” is "FAT16". If it's "FAT32", reformat
the USB memory as FAT16.
The USB must contain a playlist file named
"playlist.m3u"
which determines the order in which
MP3 files are played.
When the USB is plugged, ADA102 will reboot to detect
the device, so audio output will be muted by few seconds.
1.2.5
Serial port
The serial port is used to command, from the studios,
a device located in the transmitter plant as if it were
directly connected to serial port of the computer at
the Studio. For this ADA102 generates a
gateway
for
transporting serial data transparently through the
network (see "2.3 - Advanced Settings). The
connection requires a standard RS232 cables.
1.2.6
Remote control
Each unit has four inputs and four outputs for
remote control. Each input can controls a switch off
the remote unit.
Inputs are type “dry inputs”. To enable an input
(input “on”) send it to a GND pin of DB-15.
The output switches 1 and 2 are "open collector"
type (used for example to command external control
circuit). Switches 3 and 4 are mechanical relays that
can manage up to 1 A @ 24 VDC.
DB-15 pin out:
PIN
Signal
PIN
Signal
1
Input 1
5
Switch 1 (open collector)
2
Input 2
6
Switch 2 (open collector)
3
Input 3
7 y 14
Switch 3 Relay, normal open
4
Input 4
8 y 15
Switch 4 Relay, normal open
9 a 13
GND
1.2.7
MPX output
(optional
ADA102mpx)
The model ADA102mpx includes a stereo coder
that generates the FM baseband signal. This output
is connected to an FM transmitter. The MPX cable
is a RG-59 (coaxial 75 ohms), like the used for
CATV. The output connector is BNC. The maximum
length recommended for this cable is 25 m. Take
care with the grounding; although this rarely is
cause of problems because all Solidyne processors
have MPX differential outputs, that is to say, with the
ground isolated from the cabinet, to avoid ground
loops. If some residual humming appears when the
system is on the air; power off ADA102. If the
humming disappears, check the input connections
at the decoder. If, however, the humming continues
(and only disappears unplugging the MPX cable),
this indicates some important problem with the
grounding.
When enters to the transmitter through the MPX
input, make sure that the internal pre-emphasis
network IS DISCONNECTED (that is to say, flat
response from 20 Hz to 100 KHz). Contrary, when
use an external stereo coder, make sure that the
generator INCLUDES the pre-emphasis curve. This
is due that ADA102 audio output DOES NOT
INCLUDE pre-emphasis (only the MPX output has
pre-emphasis).
1.2.8
Reset
Pressing this button restarts the unit. Press and hold
for 10 seconds to reload the factory defaults.
If you start your computer holding down the button
for 5 seconds, ADA102 starts in “firmware update”
mode.
SOLIDYNE
ADA102 CODER/DECODER
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