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5
2x16 DA/RJ Installation and Operation Manual
OPERATION
LED indicators
“+15” and “-15 “Power LEDs: Indicate presence of positive and negative power.
Stereo/Monaural Jumper Settings
Each stereo output pair can be set to output a monaural (mono) sum of the left and
right input audio independently. Follow the silk-screened “M” and “S” labels on the
PCB. If the jumper is installed in the M position, that output will be combined to mon-
aural. For example, placing a jumper in the M position on JP1 converts output one to
mono, JP2 output two, JP3 output three, etc. The factory setting is “S” for Stereo. The
stereo outputs operate independently; setting one output pair to mono has no effect on
the other pairs and does not degrade the integrity of the other stereo outputs.
Audio Input Connections
Connect a ba4 dBu audio source to the RJ45 input jack or an unbalanced -
10/-15 dB audio source to the RCA input jacks. The input is labeled: “INPUT.” See
page 6 for pinouts.
Audio Output Connections
The 2x16 DA/RJ provides balanced analog outputs on eight RJ45 audio jacks.
Connect each load to the DA outputs, labeled "OUTPUTS” For unbalanced loads,
use the "+" and GND terminals only. Do not connect the "-" terminal to ground.
Shields should be tied to the “GND” terminals.
Audio Output Level Adjustment
The output level for each of the 16 channels is adjustable via front panel 12-turn trim-
mers labeled 1-16 for mono operation and 1-8 L/R for stereo operation. All outputs
are set from the factory so that +4 dBu into the RJ45 audio input pr4 dBu
out on each RJ45 audio output. From this factory default setting the trimmers can be
used to add up to +10 dB of additional gain or -5 dB of additional attenuation.
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Output 5
Output 7
RJ45
RJ45
Output 6
Output 8
RJ45
RJ45
Output 1
Output 3
RJ45
RJ45
Output 2
Output 4
RJ45
RJ45
