Compex Systems AP4530 XLR Analogue Inputs and Outputs, Input Source window From within the Input

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XLR Analogue Inputs and Outputs

IN 1

+

-

OUT 1

MIC/LINE Inputs Plug analogue microphone and line sources in these inputs. The connections are differentially balanced XLR with pin2 hot (+), pin3 cold (-) and pin 1 ground. For unbalanced sources link pin 3 to pin 1 at the iDR input.

Phantom power +48V DC can be switched to XLR pins 2 and 3 for powering condenser microphones and other equipment that needs phantom power. The voltage is fed through a 6.8k ohm resistor to each pin.

The Input Source window From within the Input

Channels window click on the Source button or the All button. This opens the window with the input controls. The controls shown are those associated with the physical input routed to that channel through the source patchbay. Check that the physical input number displayed is the same as the XLR input you are working with.

Selecting phantom power Open on the Source window to access the +48V switch. If required, select +48V. Read the warnings below.

To avoid loud clicks make sure that all channels fed by the input are turned down or muted before you switch +48V on or off or plug microphones into powered inputs. Do not connect unbalanced sources or cables to the inputs when +48V is selected. If phantom power is not required make sure +48V is turned off.

Selecting PAD Select the -20dB pad if you are plugging in high level microphone or line sources. Open on the Source window to access the -20dB switch.

Setting GAIN Open on the Source window to access the gain control. With audio active adjust the control so that the meter averages around ‘0’ with loudest peaks no more than ‘+10’. The gain control ranges from +5 to +50dB gain, or -15 to +30dB gain with pad selected. Gain is adjusted in 3dB steps.

Soft Limiter The limiter is an analogue circuit just before the ADC converter. It can be switched in or out. It uses an opto device to automatically limit the maximum signal level sent from the input preamp to the converter. While the preamp stage can be clipped, it does prevent clipping of the converter which can result in the harsh distortion associated with digital equipment if unexpected transient peaks are allowed to get through. The limiter starts to work 4dB before clipping. Default setting is limiter switched out.

Selecting the limiter Open on the Source window to access the limiter button. Switch it on or off as required.

LINE Outputs Connect these to line level equipment such as amplifier inputs. Maximum output is +18dBu. Decide the normal operating level according to headroom required. Typical level is 0 or +4dBu. The connections are differentially balanced XLR with pin2 hot (+), pin3 cold (-) and pin1 ground. For unbalanced sources link pin 3 to pin 1 at the iDR output.

The Output Source window Click on the XLR within the Output Select window to open up its Analog Output window. Check that the source channel number displayed is the one you want to send to the output XLR.

iDR-8User Guide

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Contents IDR-8 Conditions Of Warranty Limited One Year WarrantyIDR-8User Guide Important Safety Instructions Read FirstImportant Mains Plug Wiring Instructions This appliance must be earthedIntroduction Contents DR-8 Welcome to the iDR-8Stereo audio monitor with front panel Main FeaturesIDR-8 main processing unit 2U, 8 mic/line Daisy chain iDR-8 units Any number may beFront Panel Overview Front panel RS232 port This is used forExpander status LEDs These display Monitor in L Monitor OUT L Rear Panel OverviewSystem Processing Overview IDR-8User Guide Page IDR System Manager Software Bundle Getting Started Check the ContentsIDR-8 Main Unit Installing the iDR-8Earthing Parameters restored on power-up The iDR-8 Starting Offline with iDR System Manager SoftwareTurning the iDR-8 On and Off Updating the iDR-8 Operating Code Checking the iDR-8 Operating Code VersionPPP Setup IDR-8 Setup MenusChanging the Unit Name Accessing the iDR-8 Setup MenusChecking the Current Settings and Status Rebooting the iDR-8DR-8 Getting Started Checking the HardwareCommunicating with the iDR-8 Network PortRS232 COM Port Communicating Using a TCP/IP Connection Connect the PC to the iDR-8 Plug the PC Ethernet port Connecting the iDR-8 Direct to the PCConnecting the iDR-8 to a Network How to get the MAC addressSetting up the PC dial-up connection You need Communicating Using a Dial Up ConnectionSetting up a Dial-up Connection Changing the iDR-8 PPP settings Go to menu *6 PPPConnect the iDR-8 to the modem Connecting the iDR-8 to a ModemDial up the iDR-8 using the remote PC Open up Starting the iDR System ManagerStart the iDR System Manager from the Start / Programs Setting the Time and Day ClockArchiving and Loading Configurations Working with the iDR System ManagerInput Source window From within the Input XLR Analogue Inputs and OutputsMonitor Headphones Output This follows Monitor Inputs and OutputsMonitor TRS Input and Output The monitor is Daisy chaining iDR-8 monitors The active Using the Monitor as Additional ChannelsChecking for expanders You can use the front Adding the iDR-in and iDR-out Audio ExpandersCheck the connections The iDR-inAUDIO OUT Turning the expander on or off Turn the unit onExpanded multiple iDR-8 system This diagram Slave Linking iDR-8 UnitsUnit a Adding the iDR-switch Expander Checking for iDR-switch expanders You canConnecting to the iDR-8 The iDR-8communicates Using the switch closure inputs The input is Connectors and grounding Pluggable PhoenixUsing the logic outputs Each output is opto MIDI, SysNet and PL-Anet Ports SysNetSelecting the Communications Options Click on IDR-8 unit settings These are Configuration file settings These areIDR-8 Memory System Starting with the Patches Decide your system starting point AssignOnly store the parameters you need For your DR-8 Technical SpecificationDR-8 ApplicationDescription IDR-8 Installer Front PanelIDR-switch Front Panel HeadphonesNetwork Port IDR-switch InputsIDR-switch Logic Outputs Power SupplyNaming Soft SwitchesSoftware ClockFader Groups DelaySignal Generator Level ControlFactory default unit settings Factory default configuration settingsFactory default patch parameters Template for Allen & Heath iDR-8 Front Panel Key Label