6
– DX1208
13. RS232
This is an RS-232C port on a 9-pin (DB9) connector. It
connects to a personal computer or other compatible
control system for external control of the DX1208 settings.
This may be used instead of the USB port or the Ethernet
connection for programming the DX1208.
14. ANALOG OUTPUTS A-H
Eight balanced line-level outputs are provided on these
Euroblock connectors, labeled A-H.
15. ANALOG INPUTS 1-8
Connect eight balanced mic or line-level inputs to these
Euroblock connectors. The input gain is adjusted in the DX
Navigator software application to accommodate a mic or
line-level signal. 48V phantom power can also be applied
to a microphone input by activating it in the DX Navigator
DX1208 user-interface.
16. ANALOG INPUTS 5-8
These RCA connectors accept unbalanced line-level
inputs (–10 dBV) to accommodate consumer sources such
as CD or MP3 players. The left and right inputs for each
channel are summed to mono internally. It is possible to
have a signal connected to both balanced (Euroblock) and
unbalanced (RCA) connectors for inputs 5-8. The signals are
summed together in the analog domain, just prior to A/D
conversion.
17. S/PDIF IN 9/10 and 11/12
These RCA connectors are used to connect S/PDIF digital
inputs to the DX1208. The sample rate is automatically
detected and converted to 48 kHz for internal processing.
18. LOGIC I/O
The DX1208 provides six logic inputs and three logic
outputs on Euroblock connectors. The inputs can be used
to control a variety of DX1208 functions via external
switching, such as preset recall or channel muting. The
outputs can be used to provide logic for external indicators
and switches to indicate a range of internal settings and
conditions.
Each logic input and output is comprised of two pins, the
active pin and ground. See “Connecting the Logic I/O”
on page 8 for suggested logic input and output wiring
examples.
3. HARDWARE INSTALLATION
The DX1208 ships with rack ears installed, which allows
the unit to be mounted in a standard 19" rack, requiring one
rack unit (1.75"). When mounting in a rack, use plastic washers
to protect the rack ears from the mounting screws.
Note:
Since the DX1208 is convection cooled with
ventilation slots on the sides and top, please allow one rack
space above the DX1208 to allow proper ventilation.
If you do not rack mount the DX1208, you may remove the
rack ears if desired.
CONNECTIONS
Connecting Balanced Sources
Use high-quality three-conductor cable for balanced input
connections. The better the shield, the better the audio signal
is protected from induced EMI and RFI.
Note:
With screw-down Euroblock connectors, it’s best
to use stranded wire that is not tinned. Solder can “flow”
under the pressure of the screw-down terminal and cause the
connection to become loose.
8
S/PDIF
9/10
11/12
7
6
5
LOGIC
3
OUT
GND
GND
GND
2
OUT
1
OUT
6
IN
5
IN
4
IN
3
IN
2
IN
1
IN
IN
IN
IN
IN
IN
IN
IN
IN
4
3
2
1
8
7
6
5
GND
GND
GND
GND
GND
GND
GND
GND
DX 1208
GND
GND
GND
GND
GND
GND
IN
IN
IN
IN
R
L
R
L
R
L
IN
IN
ADDRESS
ETHERNET
RS232
ANALOG
OUTPUT
GND
GND
GND
GND
GND
GND
GND
GND
D
C
B
A
H
G
F
E
DX LINK RX
DX LINK TX
REMOTES
ON
COMM
DX LINK ACTIVE
DX 1208
MATRIX MIXER
1
2
3
4
5
6
7
8
INPUT
A
B
C
D
E
H
CLIP
- 40
9/10
11/12
OUTPUT
CLIP
- 40
ON
F
G