Contemporary Research QMOD-HDMI RGB Manuale di installazione - Pagina 3
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Stampa la paginaTesting the System
Preparation
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Remove the 4RU rack from the shipping box.
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The rack is pre-wired for RF and power supplies.
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Turn the racked units around to face the back.
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If you ordered additional QMODs, those can be connected to the open input ports on the QCA9-33.
Testing
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The QMODs are factory preset to channels 2-1 through 9-1.
Additional QMODs in the same order can be preset to channels 10-1 and beyond by request (at time of order).
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Connect AC power to the two power supplies in the top rack.
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Make sure the DC cables are still connected to the components.
Connect an RF coax cable from the QCA9-33 RF Out to a nearby TV. (Some TVs are not able to operate with a 32 dBmV RF level, so
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they may require a 20 dB attenuator.)
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Perform a channel scan on the TV.
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Although no video is supplied to the QMODs, there will be a color background on each channel.
Distribution
Connect the RF Out on the QCA9-33 to the RF distribution system. Even before video sources have been connected and before the ICE-HE-
DXL has been connected to an Ethernet network, the TVs and controllers can be tested as they are being hooked up.
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When the ICC1-IRX or ICC1-232 controller is connected to the RF network, the NET light will blink once per second, confirming that it
is receiving the control "heartbeat" signal from the ICE-HE-DXL.
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Once the TV and controller are installed, perform a channel scan to verify that the TV can tune all the channels.
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