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Back Panel Interface

Lake LM Series Operation Manual Rev 1.3.5

7.5 Universal Power Supply Connection

7.5.1 IEC Power Connector

A universal power supply capable of accepting 70-265 V ~ 50-60 Hz : 25 W is built into the device. The IEC
power cable provided includes a locking feature via a pin on the bottom of the connector; the connector can
accept standard or locking IEC power cables.

The power supply must be connected to AC mains using an IEC power cable with a correctly wired and
molded plug for the country of operation.

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Содержание LM Series

Страница 1: ...Operation Manual Lake LM Series Digital Audio Processors Rev 1 3 5 Item OM LM Operation Manual...

Страница 2: ...that no objects filled with liquids such as vases are placed on the equipment 18 The mains plug of the power supply cord shall remain readily operable 19 Do not connect the unit s output to any other...

Страница 3: ...sonnel Pour r duire le risque d incendie ou de choc lectrique ne pas retirer les vis Aucune pi ce r parable par l utilisateur Confier l entretien personnel qualifi 1 6 FCC Compliance Notice Radio Inte...

Страница 4: ...adio TV technician for help 1 7 User Responsibility 1 7 1 Mains Connection Grounding Your apparatus must be connected to a grounded socket outlet 1 7 2 Maintenance For safe and reliable operation the...

Страница 5: ...ling 3 3 4 Operating Voltage 4 3 5 Grounding 4 4 Product Overview 5 4 1 Front Panel Overview 5 4 2 Back Panel Overview 8 5 Signal Flow and Lake Processing 11 5 1 Signal Flow 11 5 2 Level Adjustments M...

Страница 6: ...ction 48 8 Appendix 49 8 1 Faults and Warnings Overview 49 8 2 Maintenance 50 8 3 Factory Default Settings 50 8 4 Glossary of Terms Acronyms and Abbreviations 51 9 Application Guide 54 9 1 Gain Struct...

Страница 7: ...ion The following section summarizes the benefits of each feature additional information is available in the reference manuals 2 2 1 Lake Processing and Controller LM Series devices integrate seamless...

Страница 8: ...e distributed alongside control and analyzer data 2 3 Additional Documentation This document the Lake LM Series Operation Manual serves as the primary reference source for detailed information on the...

Страница 9: ...to facilitate shipping of the device should the need arise 3 2 Mounting Airflow for cooling the device is from side to side right side intake to left side fan Please ensure there is sufficient space...

Страница 10: ...ble with the appropriate molded plug should be used A locking IEC cable is not necessary in order to power the device although is essential if locking functionality is required Once a suitable AC powe...

Страница 11: ...a rotary data encoder To the right of these controls is a dynamic illuminated I O divider along with input and output mute buttons and level meters Handles Two sturdy cast aluminium handles are integ...

Страница 12: ...menu In Menu Mode the dynamic func tion buttons enable access to various information and functionality Please refer to section 6 5 for further details Exit The EXIT button is used primarily while navi...

Страница 13: ...outputs for meter ing and mute purposes in the two different modes of configuration Contour Mode provides two Module inputs and six Module outputs Mesa Mode provides four Module inputs and four Modul...

Страница 14: ...nalog Inputs Analog inputs are provided via standard XLR3F latching connectors The inputs are electronically balanced and feature Lake Iso Float circuitry it is not recommended to use unbalanced conne...

Страница 15: ...hould not be used with Dante For a technical reference of the Ethernet Port please refer to section 7 3 Additional information is also available in the Lake Network Configuration Guide The Ethernet po...

Страница 16: ...external monitoring system Please refer to sections 6 10 4 4 and 7 4 for further details Mains Power Connector A universal power supply capable of accepting 70 265 V 50 60 Hz 25 W is built into LM Ser...

Страница 17: ...provides up to five points in the signal chain where the signal level can be adjusted muted or disconnected depending on whether configured in Contour or Mesa Mode as described below The blue section...

Страница 18: ...t selection and MUTE Input Mixer Stage Router on off connection to mixer and gain settings Module Input Stage Mute N A for LM Series Mesa Mode and gain settings Module Output Stage Mute and gain setti...

Страница 19: ...panying CD ROM or USB key and additional documentation is available from the Start Menu after software installation Visit http lakeprocessing com to download the latest software firmware and document...

Страница 20: ...taining a total of up to six processing Module outputs as shown in Figure 5 1 on page 11 Each set of processing elements is referred to as a Module and can be configured as crossovers full bandwidth a...

Страница 21: ...on for an individual loudspeaker i e the data shown in red in the signal flow diagrams in section 5 1 A Module file may be recalled into other Lake devices It is not possible to store a Module File di...

Страница 22: ...d LED meters The front panel has two basic modes Meter Mode and Menu Mode Meter Mode provides the following views Home View default Input Meters View Mesa Mode only and I O Status View To navigate thr...

Страница 23: ...Panel Key Lock It is possible to lock the front panel buttons for security purposes When this function is active all front panel controls are disabled and all adjustment must be made via the network...

Страница 24: ...ayed Please refer to section 6 9 for further information 6 5 Menu Button Menu Mode is selected by pressing the MENU button The screen displays the top level menu with various submenu options Press the...

Страница 25: ...LCD All mute fault and warning states displayed on the front panel are summarized in section 8 1 Additional faults and warnings are reported in the Event Log of the Lake Controller only All faults an...

Страница 26: ...inates when a selected parameter is available for adjustment Turn the encoder clockwise to increase the selected parameter or counter clockwise to decrease the value Parameters with only two states e...

Страница 27: ...on 5 1 for mute locations and descriptions Three types of mute are available from the front panel 1 Input Router Mutes 2 Module Input Mutes 3 Module Output Mutes In Home View default Module Input and...

Страница 28: ...to show Input Router mutes and Input Router metering the dynamic I O divider line is not present and the buttons and meters change to represent the input router mute status and associ ated metering Th...

Страница 29: ...mutes or GPIO protective mutes along with confirmation text on the LCD screen Clipping is monitored at the following positions in the signal chain Analog Inputs If the input signal exceeds either 12...

Страница 30: ...shown in Figure 6 9 This view is not available in Contour Mode as Contour Mode Home View includes both input and output metering information Figure 6 9 Meter Mode Input Meters Mesa Only 6 9 3 I O Stat...

Страница 31: ...tal bar and numeric dB and also shown on the main front panel LED meters input mute status analog headroom digital sample rate digital clock selection and digital clock locking status If an Input Rout...

Страница 32: ...ay be selected for adjustment by pressing the adjacent button The selected parameter value s are highlighted and are adjustable using the rotary encoder A parameter may be adjusted simultaneously acro...

Страница 33: ...Groups 6 10 1 2 Menu Structure Overview From the Main Menu the following submenus are available as shown in Figure 6 11 and described in the following sections MODULE See section 6 10 2 Mixer Gain Ga...

Страница 34: ...Edit Screen The top left button labeled PAGE toggles between the input mixer gain settings for each Module in the Frame Press any other illuminated button to select a parameter for editing then use t...

Страница 35: ...e rotary encoder Figure 6 15 Module A B Combined Gain Summary Edit Screen On the combined module summary screen use the NAV button to navigate through the channels and the SEL button to select a param...

Страница 36: ...miters MENU MODULE LIMITERS LimiterMax parameters can be adjusted via this submenu By default simultaneous adjustment of most limiter parameters across all output channels is selected although channel...

Страница 37: ...RMS limiting features referred to as MaxPeak and MaxRMS respectively Full details regarding LimiterMax can be found in the Lake Controller Operation Manual 6 10 3 I O Config Submenu MENU I O CONFIG Fi...

Страница 38: ...riorities is fixed regardless of whether a valid signal is present With a router selected on the front panel press the middle button on the left of the LCD to activate this parameter for editing the t...

Страница 39: ...is also displayed on the I O STATUS screen For fault free operation when using AES3 digital audio as an input source inputs must be correctly termi nated with the characteristic impedance of 110 ohm...

Страница 40: ...etting to resolve ground loop problems when using analog inputs 6 10 3 4 Output Router MENU I O CONFIG OUTPUT RTR Figure 6 20 Output Router Configuration Screen The LM Series device provides comprehen...

Страница 41: ...nected routing point O identifies a currently unused and available routing point identifies that routing is unavailable for this routing point normally because another audio channel is already routed...

Страница 42: ...he Lake Controller software Reads Auto IP for Auto Zero Conf DHCP IP for Auto DHCP and Fixed IP when a fixed IP address is used Please refer to the Lake Controller Operation Manual for details IP Mask...

Страница 43: ...n Frame Preset information and IP Network configuration will be unaffected A power cycle is not required to complete this type of reset Mesa Reset A Mesa Reset will configure the Frame in Mesa System...

Страница 44: ...a transition from closed open and from open closed Acting on Transition Option Protective Mute State 1 No Action 2 Toggle State 3 Mute 4 Unmute Standby State 1 No Action 2 Toggle State 3 Standby 4 Tu...

Страница 45: ...ting on State when Closed Protective Mute State 1 Muted 2 Unmuted Standby State 1 Standby 2 On Fault 1 No Fault 2 Any Fault Ready 1 Ready 2 Not Ready No Indication Table 6 4 GPO Options Factory Reset...

Страница 46: ...ront Panel Display Controls MENU FRAME FRONT Figure 6 25 Front Panel Display Controls Menu Contrast To adjust the front panel LCD contrast select this option then use the rotary encoder to change the...

Страница 47: ...be created in the Lake Controller and stored as a Preset using the Lake Controller or the LM Series Preset Manager Up to 100 Frame Presets can be stored in the device The data within a Frame Preset i...

Страница 48: ...nections as shown in Figure 7 1 Figure 7 1 Back Panel Interface LM 26 Figure 7 2 Back Panel Interface LM 44 7 1 Analog Inputs and Outputs 7 1 1 Analog Output XLR Connections Six LM 26 or four LM 44 el...

Страница 49: ...LR Connections LM 26 7 1 3 Analog XLR Wiring and Pin Out All XLR connections are wired to IEC268 as shown in Figure 7 5 Figure 7 5 IEC268 XLR Wiring and Pin Out Pin 1 Ground Shield Pin 2 Hot Pin 3 Col...

Страница 50: ...g Wiring and Pin Out 7 1 5 Iso Float Electronic Balancing The analog input and output electronic balancing circuits use the Lake Iso Float system The Iso Float technology combines the benefits of tran...

Страница 51: ...Ch 7 8 AES4 Ch 7 8 LM 44 Only Table 7 1 DB25 Input and Outputs Figure 7 9 below provides a wiring reference for the DB25 connector Ch Ground Hot Cold 1 2 IN 10 1 14 3 4 IN 11 2 15 5 6 IN 12 3 16 7 8 I...

Страница 52: ...made cables with moulded RJ45 plugs are recommended If it is necessary to make up custom Cat 5e network cables use pinout described in Table 7 2 Pin No Color 1 Brown 2 Brown White 3 Green 4 Blue Whit...

Страница 53: ...s such as fire alarm systems for emergency muting processor power control or preset recall The GPO function allows fault and state monitoring via external systems Figure 7 12 in conjunction with Table...

Страница 54: ...e of accepting 70 265 V 50 60 Hz 25 W is built into the device The IEC power cable provided includes a locking feature via a pin on the bottom of the connector the connector can accept standard or loc...

Страница 55: ...selected digital clock and digital input combination is not aligned Verify digital input configuration to ensure all clock settings match CTRL OFFLINE Warning The device is no longer able to communic...

Страница 56: ...ry if the device has had prolonged operation in an extreme environment such as one where cracked oil smoke machines are in use If the device is used in extreme conditions it is recommended to have it...

Страница 57: ...of the network they are connected to 10 Base T or 100 Base T and configure themselves appropriately This is termed auto sensing Auto Uplink The Ethernet ports can operate with either straight or cross...

Страница 58: ...ke devices Floating An analog balanced input or output is said to be floating when full electrical isolation exists between that input or output and the equip ment connected to it Transformer coupled...

Страница 59: ...Thus an Lake device on the network can be pinged from the Lake Controller on receipt of the ping the hi intensity white LED on the front panel illuminates Reverse pinging is also possible whereby the...

Страница 60: ...e voltage falls within the specified range for the device Vrms The RMS voltage of a signal See RMS Wireless Access Point A device used to connect a computer to an Ethernet network without cables a rad...

Страница 61: ...Controller Please refer to the Lake Controller Operation Manual for further details 9 1 2 Input Mixer Input Mixer gains can remain at 0 00 dB for most configurations if only one input channel is used...

Страница 62: ...ise To help provide the best volume to noise ratio use an AES or Dante digital input signal wherever possible If using analog inputs ensure that unused or unnecessarily high headroom is not introduced...

Страница 63: ...ng delay referred to as latency If the processing chain does not involve analog to digital or digital to analog conversion the amount of latency is usually very small and often may be disregarded Howe...

Страница 64: ...9 3 4 Additional Reference Material Complete technical information on the AES EBU AES3 standard can be downloaded from the AES web site at http www aes org publications standards 9 4 Digital Clock Con...

Страница 65: ...Clock s base rate is 48 kHz then 96 and 192 kHz clocks are also derived In most typical applications SRC Clock will be set at a base rate of 44 1 kHz A base rate of 48 kHz is provided to allow for bo...

Страница 66: ...quired on a device that is already a Dante slave this secondary digital input must be locked using the SRC clock The front panel I O Status View indicates if that device is selected as Dante Clock Mas...

Страница 67: ...l Latency ms LM 44 Total Latency ms Analog Analog 0 226 0236 Analog 48 kHz sync 0 373 0 373 Analog 96 kHz sync 0 158 0 158 48 kHz sync Analog 0 395 0 406 48 kHz sync 48 kHz sync 0 545 0 545 96 kHz syn...

Страница 68: ...s 8 inputs 8 outputs Supported sample rates I O individually selectable Supported resolutions Up to 24 bit THD Noise 0 00002 at 96 kHz 0 00006 at 44 1 kHz sample rate Dynamic range Base48 140 dBFS Bas...

Страница 69: ...is not covered by the warranty Units on which the serial number has been removed or defaced will not be eligible for warranty service Lake shall not be responsible for any incidental or consequential...

Страница 70: ...uct prepaid to Lake Faktorv gen 1 SE 434 37 Kungsbacka SWEDEN Phone 46 300 56 28 00 Fax 46 300 56 28 99 service lakeprocessing com www lakeprocessing com 11 4 Trademarks Lake is a national and or inte...

Страница 71: ...T I O N A L contact info lakeprocessing com U S C A N A D A C O N T A C T info T C G A M E R I C A S com w w w l a k e p r o c e s s i n g c o m L ake is a wholl y owned subsidiar y of L ab gruppen A...

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