P/2 DA2xi MT • ConnectionsP/2 DA2xi MT • Connections
Installation
54
P/2 DA2xi MT • Specifications
P/2 DA2xi MT • Specifications
Specifications
76
5. Insert #8 wood screws into the four pilot holes. Tighten
each screw into the mounting surface until just less than
1/4" of the screw head protrudes.
6. Align the mounting screws with the slots in the brackets
and place the unit against the surface, with the screws
through the bracket slots.
7. Slide the unit slightly forward or back, then tighten all four
screws to secure the unit in place.
Connections, Indicators, and Controls
AUDIO
INPUT MONITOR
LR
P/2 DA2xi MT
OUTPUT
1
ON
2
EXT POWER (see manual)
5V
0.2A MAX
GAIN/PEAK
OUT IMP
7
6
1
34
75
66
2
6
9
67 68
Front and rear panels
1
Power/Signal indicator LED — When lit green, this LED
indicates that the distribution amplifier is receiving both
power and a computer signal. When lit amber, it indicates
that the distribution amplifier is receiving power but no
computer signal.
2
Audio input connector — Plug a 3.5 mm, mini plug audio
cable from the computer’s sound card into this jack.
3
Video Input connector — Connect a computer’s VGA -
QXGA output to this connector.
4
Monitor connector — Connect a local monitor to this
connector.
5
Power connector — Plug the external 12 V power supply,
only when needed (see Power/Signal indicator LED above),
into this 2-pole captive screw connector. The included
power supply is shipped with a plug installed. If you need
to cut the power cord to a different length and reinstall the
plug, refer to the following figure and notes.
+
–
Power supply output cord
5 mm
End view of power
supply output cord
Captive screw
connector
AA
SECTION A–A
12 VDC
Power
CAUTION
When you connect the power supply, voltage polarity
is extremely important. Applying power with
incorrect voltage polarity could damage the power
supply and the amplifier. Identify the power cord
negative lead by the ridges on the side of the cord.
Do not tin the stripped power supply leads before
installing the captive screw connector. Tinned wires are
not as secure in the connectors and could pull out. Strip
the power cord jacket 5 mm from the end.
The two power cord wires must be kept separate while
the power supply is plugged in. Remove power before
continuing.
To verify the polarity before connection, plug in the power
supply with no load and check the output with a voltmeter.
6
2-bank DIP switches —These switches affect only the
video output (
7
), not the “monitor” output (
4
). The
Gain/Peak DIP switch should be on (up) when output
cable is over 100' (30.5 m). The Out Imp DIP switch
changes output impedance. If all connections and
operations are correct, but the output device has no
picture, switch to the other position.
7
Video output connector — Connect the video output
device (projector, display panel, or monitor) to this
connector.
8
Audio output connector — Wire a 3.5 mm, 5-pole, captive
screw audio connector as shown below, and plug it into
this connector. Connect the other end of the cable to an
audio output device or recorder.
Unbalanced audio Balanced audio
Tip
Ring
Tip
Ring
LR
Sleeves
Do not tin the wires!
Tip
Sleeve
Sleeve
Tip
LR
CAUTION
Connect the sleeve to ground (Gnd). Connecting the
sleeve to a negative (-) terminal will damage the audio
output circuits.
9
Local monitor cable assembly — Use this cable assembly
to connect the local monitor (video) and speaker (audio) to
the unit. The chain is used to attach the cable to the unit, to
prevent the cable from being lost or misplaced.
Specifications
Video
Gain ............................................... Output: 0 dB or 0.6 dB, selectable
Local monitor output: unity
Peaking .......................................... Output: selectable, 0 dB or 0.6 dB at 100
MHz
Local monitor output: fixed
Bandwidth .................................... 350 MHz (-3 dB)
Video input
Number/signal type ................... 1 VGA-QXGA RGBHV, RGBS, RGsB,
RsGsBs
Connectors .................................... (1) 15-pin HD female
Nominal level ............................... 0.7 Vp-p for RGB
Minimum/maximum levels ...... Analog, 0.3 V to 1.5 Vp-p with no offset at
unity gain
Impedance .................................... 75 ohms
Horizontal frequency .................. 15 kHz to 135 kHz
Vertical frequency ....................... 30 Hz to 170 Hz
Return loss .................................... <-38 dB @ 5 MHz
DC offset (max. allowable) ......... 1.0 V
Input coupling.............................. DC
Video output
Number/signal type ................... 1 VGA-QXGA RGBHV, RGBS, RGsB,
RsGsBs output
1 VGA-QXGA RGBHV, RGBS, RGsB,
RsGsBs local monitor loop-through (i.d.
bits are passed through)
Connectors .................................... (2) 15-pin HD female
Nominal level ............................... 0.7 Vp-p for RGB at unity gain
Minimum/maximum levels ...... Analog, 0.3 V to 1.5 Vp-p (follows input)
Impedance .................................... 75 ohms
Return loss .................................... <-40 dB @ 5 MHz
DC offset ....................................... ±5 mV with input at 0 offset
Sync
Input type ..................................... RGBHV, RGBS, RGsB, RsGsBs
Output type .................................. RGBHV, RGBS, RGsB, RsGsBs
Input level ..................................... 1.5 V to 5.0 Vp-p
Output level .................................. TTL, 5 Vp-p, unterminated
Input impedance .......................... 510 ohms (fixed)
Output impedance ...................... 75 ohms or 50 ohms, selectable
Max. propagation delay.............. 60 ns
Max. rise/fall time ....................... 4 ns
Polarity .......................................... Positive or negative (follows input)
Audio
Gain ............................................... Unbalanced output: 0 dB; balanced
output: +6 dB
Frequency response ..................... 20 Hz to 20 kHz, +0.05 dB, -0.1 dB
THD + Noise ................................ 0.03% @ 1 kHz at nominal level
S/N ............................................... >90 dB (balanced) at maximum output
Crosstalk ....................................... <-80 dB @ 1 kHz, fully loaded
Stereo channel separation .......... >80 dB @ 1 kHz, >60 dB @ 20 kHz
CMRR ............................................ >67 dB @ 20 Hz to 20 kHz
Audio input
Number/signal type ................... 1 stereo, unbalanced
Connectors .................................... (1) 3.5 mm stereo jack, female; tip (L), ring
(R), sleeve (GND)
Impedance .................................... >18k ohms unbalanced, DC coupled
Nominal level ............................... -10 dBV (316 mV)
Maximum level ............................ >+10 dBV (3.16 V) (unbalanced) at
1%THD+N
0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV 2 dBu
Audio output
Number/signal type ................... 1 stereo, balanced/unbalanced
Connectors .................................... (1) 3.5 mm captive screw connector, 5 pole
Impedance .................................... 50 ohms unbalanced, 100 ohms balanced
Gain error ...................................... ±0.1 dB channel to channel
Nominal level ............................... -2 dBu (632 mV) balanced output
-10 dBV (316 mV) unbalanced output