PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier USER Manual MAN 179C
PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier Table of Contents Safety Warnings and Instructions 4 System Overview 6 Controls and Connectors 7 Figure A: Front Panel 7 Figure B: Rear Panel 7 Typical Connections 8 Figure C: Example Connections 8 Rack Installation 9 Figure D: RS-232 Standard Cable Pinout Configuration 9 Setup and Calibration Procedure (using a laptop or windows tablet) 10 Single Perimeter Loop Configuration using front LCD (Dual Loop M
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PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier Safety Warnings and Instructions WARNING! TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. CAUTION! TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier and cart combination should be moved with care. Quick stops, excessive force and uneven surfaces may cause the appliance and cart combination to overturn. 16. Wall or ceiling Mounting - The appliance should be mounted to a wall or ceiling only as recommended by the manufacturer. 17. Power Sources - The appliance should be connected to a power supply only of the type described in the operating instructions or as marked on the appliance. 18.
PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier System Overview Thank you for purchasing the PLA DL210 Digi-Loop™ DSP Induction Loop Amplifier. This is the latest in induction loop technology. An induction loop system uses a large copper loop, usually run on the floor around the inside perimeter of a room, to transmit electromagnetic signals to a receiving device that picks up the broadcast.
PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier Controls and Connectors Figure A: Front Panel MENU (GUI) DISPLAY MENU CONTROL KNOB MENU (GUI) DISPLAY MENU CONTROL KNOB HEADPHONE JACK ETHERNET JACK MIC/LINE INPUTS Figure B: Rear Panel SPEAKER-LEVEL INPUTS COOLING FAN HEADPHONE JACK ETHERNET JACK AES/EBU XLR JACK RS-232 JACK MIC/LINE INPUTS USB JACK SPEAKER-LEVEL INPUTS LINE INPUTS RCA LINE OUTPUTS COOLING FAN INDUCTION LOOP/SPEAKER OUTPUTS POWER AND FUSE ACCESS A432 AES/EBU XLR J
PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier Typical Connections Figure C: Example Connections ROUTER COMPUTER (HARD-WIRED TO ROUTER) iPAD, ANDROID TABLET, OR PHONE WITH WI-FI LAPTOP (FOR INITIAL CALIBRATION/CONFIGURATION) PLA DL210NET PROFESSIONAL INDUCTION LOOP AMPLIFIER WITH DIGITAL SIGNAL PROCESSING TO RECORDING EQUIPMENT FROM COMMERCIAL SPEAKER SYSTEM INDUCTION LOOP #1 UNBALANCED AUDIO FROM CONSUMERGRADE PRODUCT SUCH AS CD PLAYER or MP3 PLAYER ANALOG AUDIO FROM MIXER, PREAMP, ETC.
PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier Rack Installation 1. Install into a 19” rack using 10-32 rack screws. 2. Leave 1U rack space above for ventilation. 3. A surge protector or power conditioner is highly recommended. 4. Use a grounded outlet. 5. Connect all input/outputs before applying power. 6. Plug in the power cord and turn on the unit.
PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier Setup and Calibration Procedure (using a laptop or windows tablet) If one is already familiar with loop systems, these steps can be used to get the amplifier up and running fairly quickly. A Field Strength Meter is required to perform this procedure. The PC App is compatible with Windows-based PC’s only (not MAC or Android). 1. The DC resistance of the loop should be between 0.5 – 1.5 Ohms. 2.
PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier Single Perimeter Loop Configuration using front LCD (Dual Loop Mode) 1. Define the area needed for the loop layout. 2. DC resistance of the loop and lead wire should be between .5 and 1.5 Ohms. 3. Connect loop wire to the DL210 Phoenix connector and insert to Loop Output A. 4. Connect all inputs to be used into the DL210. 5. Turn the power on. 6. Rotate the menu knob clockwise and go to the configuration menu.
PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier Dual Loop Calibration using front LCD (Dual Loop Mode) Note: this mode is also used for a single loop; in this case steps referring to Loop B can be skipped. 1. Define the areas needed for the loop layout. 2. DC resistance for each separate loop with lead wire should be between .5 and 1.5 Ohms. 3. Connect loop wire to the DL210 Phoenix connectors and connect to Loop Outputs A and B. 4. Connect all inputs to be used into the DL210. 5.
PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier Phased-Array Calibration using front LCD (Phased Array Mode) 1. Master and Slave loop wire layout should follow parameters defined by blueprints and site survey findings. 2. Loop wire and lead wire DC resistance should be between .5 and 1.5 Ohms on both the Master and Slave loops. 3. Connect the Master Loop wire to the DL210 Phoenix connector and connect to Loop Output A. 4.
PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier One Speaker + Single Loop Calibration using front LCD (Speaker Mode) 1. Define the area needed for the loop layout. 2. Loop and lead in wire DC resistance should be between .5 and 1.5 Ohms. 3. Connect loop wire to the DL210 Phoenix connector and insert to Loop Output B. 4. Turn the power on. 5. Rotate the menu knob clockwise and go to the configuration menu. Push knob to enter and select output configuration and turn rotary selector to Loop A.
PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier Front Screen Menu Tree The following is an overview of the on-screen menu. The numbers by each block refer to the Front Menu Detail Section (next page).
PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier Front Menu Detail The entire on-screen menu is accessed by either rotating the control knob to the left or right (to view), or pushing it in (to select). See the Menu Tree (previous page) for an overview of the entire menu structure. 1. LOOP STATUS The On-Screen Menu starts, and when it times-out, will return to the “Loop Status” Screen (below).
PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier 4. CONFIGURATION MENU The configuration menu is where most of the amplifier settings and fine-tuning is performed. This menu is where Inputs and Outputs are configured and system parameters are set up, stored and recalled. 5. INPUT CONFIGURATION Each of the inputs can be configured individually. To set up Input 1, enter “Input Configuration”. Input 1 is the first input you can adjust, so it is already selected.
PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier 5a3. EQ This is a 3-band parametric equalizer providing adjustment for Low, Mid-Band, and High frequency. The center or cutoff frequency for each band is chosen under the Advanced Settings. The first screen (below) shows the level adjustment for each of the bands (midrange highlighted). Rotate the knob until Advanced Settings is highlighted and push the knob to select.
PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier 6. OUTPUT CONFIGURATION Each of the outputs can be configured individually. To set up Ouput 1, enter “Output Configuration”. Ouput 1 is the first input you can adjust, so it is already selected. To get to the next input, rotate the knob to the right. 6a. Name This allows you to name the Output. To change the name, select the first character and rotate the dial to change letters/numbers.
PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier 6d. AGC Automatic Gain Control measures the average level of the signal and applies gain reactively to keep the output level constant. It also limits the output power and reduces or eliminates distortion due to clipping that would normally occur without AGC. 6d1-6. AGC Level, Hold Time, Attack, Release Preset provides default settings for Voice and Music, and only the Amount is adjustable.
PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier 6e. Delay Delay is the amount of time between the input signal and the output signal of the amplifier. This is often useful in a loop system when a PA system is also being used, so that the audio being heard through the loop (receiver or hearing aid) matches that of the PA System speakers. Delay helps to eliminate this “echo” effect. The Delay is adjustable from 0 ms to 165 ms in 1 ms steps. 6f1-3.
PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier 7. SYSTEM CONFIGURATION 7a1-3. Presets - Load Preset, Save Preset, Change Name Presets allow the user to store all of the current amplifier settings into one easy-to-access Preset, and recall the Preset when needed. These presets are stored in the amplifier (not to be confused with saving or loading a configuration file, which can only be done through the PC App and is stored on a computer).
PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier 7c. Network Network settings provide the ability to choose dynamic IP addressing or specify a static IP Address for the amplifier. The amplifier’s default state is dynamic (DHCP). If using DHCP (choosing “No” for Static IP in the second screen below) you need to go to a different screen to find out what the assigned IP Address is (See 7g5, IP Address under Tech Tools).
PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier 7g. Tech Tools Tech Tools provides the ability to calibrate the amplifier through use of a test tone, perform an open loop test, check the firmware version(s) of the ICs, name the amplifier, set a static or dynamic IP address, and reset the amplifier to factory default settings. 7g1a-c. Calibrate - Output, Frequency, Volume Calibrate determines which output to send the test tone to (Loop A or Loop B).
PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier 7g4. Device Name The Device Name provides the ability to give the amplifier an 8-character name for easy identification when connecting to it through the PC App on a network. This name will show up on a drop-down list in the PC App as an available device to connect to. For example, if 5 amplifiers were connected on the network, and the third amp was designated for the balcony, you could connect to “Balcony” to make changes to that amp’s settings.
PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier PC Application Initial Setup SYSTEM REQUIREMENTS The PC Mixer App can be used with the Ethernet, USB, or RS-232 Ports. The App must be configured for the type of connection used before the Computer will communicate with the Loop Amplifier. The RS-232 connection would typically be used for a third-party controller and not for initial setup. The install program may fail if the following conditions are not met.
PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier Using the PC Mixer Application PC APP TOOLBAR Amplifier Connect - This symbol establishes connection between the amplifier and the connected PC. Save Configuration - Stores all of the system settings in a file. We recommend saving the settings in a file in case of power outage or other catastrophic failure. Settings should be saved immediately after the system is calibrated. Load Configuration - Loads all saved system settings from a file.
PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier PC APP MAIN SCREEN Mix Gain - Allows an additional point of control to mix individual inputs as required for each output. (Click on the dial, then slide up/ down to adjust) Line/Mic/Phantom Mic Select - Switches between a Line-level signal, dynamic microphone or 48v condenser microphone.* Input Trim - Provides fine trim of the input gain. Input Effects/Output Effects - Opens the Input or Output Effects adjustment window (see Figures M,N).
PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier INPUT EFFECTS Equalizer Hz (Bass/Mid/Treble Pole Freq) - Sets the center frequency for the gain adjustment of each band. (Click then slide up/down to adjust) dB (Bass/Mid/Treble Pole Freq Gain Adjust)- Adjusts the amount of gain at the pole frequency. This is adjustable from -96.0dB to 0.0dB in 0.5dB steps. High Pass Filter Each push of the button toggles between “OFF”, 31Hz, 62Hz, 125 Hz, 500Hz, and back to OFF.
PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier OUTPUT EFFECTS Equalizer Hz (Bass/Mid/Treble Pole Freq) - Sets the center frequency for the gain adjustment of each band. dB (Pole Freq Gain Adjust)- Adjusts the amount of gain at the pole frequency. Metal Compensation - Metal loss occurs when the environment contains metal that absorbs the energy from the loop, reducing the frequency response at high frequency. This adjustment helps overcome this loss.
PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier STATUS BOX AND AMPLIFIER STATUS WINDOW The status box shows loop status at a glance. For more detail, open the Amplifier Status Window. Figure O: Amplifier Status Window Status Box. Click inside the box to open the Amplifier Status Window. CALIBRATION WINDOW The amplifier must be calibrated to the loop(s) before the VU meters will be accurate.
PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier Specifications Dimensions Weight Color Fan Cooling Power Digital Input Analog Line Inputs Mic/Line Inputs 70-100v Input Line Outputs Loop Outputs Required Loop Resistance Output Current (Loop) Output Power (Speaker) Loop Frequency Response Speaker Frequency Response Speaker Dynamic Range Speaker THD+N Loop THD Front Controls Remote Control/Configuration Ethernet RS-232 USB Warranty Approvals 2U rackmount, 19” W x 3.5” H x 12” D. Chassis is 17” W.
PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier Troubleshooting Problem Solution - Check to see that the loop amplifier is on. - Make sure the input source is on/playing. No Sound - On the “Loop Status” screen, the horizontal bar graph should be pulsing with the audio from the input source. - Plug in headphones and make sure the input source is producing audio.
PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier 2-year Warranty Williams Sound products are engineered, designed, and manufactured under carefully controlled conditions to provide you with many years of reliable service. Williams Sound warrants the PLA DL210 Digi-Loop™ DSP Induction Loop Amplifier against defects in materials and workmanship under normal use and conditions for 2 years from date of purchase.
PLA DL210NET Digi-Loop™ DSP Induction Loop Amplifier Notes 35
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