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LT 4441 / LT 4442

CHANGEOVER

INSTRUCTION MANUAL

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Содержание LT 4441

Страница 1: ...LT 4441 LT 4442 CHANGEOVER INSTRUCTION MANUAL...

Страница 2: ...2 3 4 Signal Switching 5 2 3 5 Error Detection 6 2 3 6 Key Lock 7 2 3 7 External Control Connectors 7 2 3 8 General Specifications 7 3 NAMES AND FUNCTIONS OF PARTS 8 3 1 Front Panel 8 3 2 Rear Panel...

Страница 3: ...5 2 Switching the Output Signal 21 4 5 3 Setting Automatic Signal Switching 22 4 5 4 Error Display and Resetting 23 5 EXTERNAL INTERFACE 24 5 1 Remote control Connector 24 6 CALIBRATION AND REPAIRS 2...

Страница 4: ...If you have any questions about the contents of this manual please contact your local LEADER agent Symbols and Terms The following symbols and terms are used in this instruction manual and on the ins...

Страница 5: ...r cord is damaged stop using it and contact your local LEADER agent Using a damaged power cord could lead to electrical shock or fire When removing the plug from the power outlet do not pull on the co...

Страница 6: ...time remove the power plug from the outlet Operating Humidity Range Use this instrument in an environment whose relative humidity is 85 or less where there is no threat of condensation forming Also do...

Страница 7: ...instrument fire or electric shock may result About the European WEEE Directive This instrument and its accessories are subject to the European WEEE Directive Follow the applicable regulations of your...

Страница 8: ...r 2 Repair of an instrument that has been improperly repaired adjusted or modified by personnel other than a factory trained LEADER representative 3 Repair of malfunctions or damages resulting from im...

Страница 9: ...with the external conductor 1 2 6 Rack Mounting If you are mounting this instrument on a rack be sure to provide additional support for the instrument If you only use the included rack supports to mou...

Страница 10: ...can combine the LT 4441 4442 with multi format video generator LT 443D or LT 4400 to configure a system 2 2 Features I O Connectors The LT 4441 4442 is equipped with 11 sets of I O connectors a single...

Страница 11: ...nput connector TTL input 75 BNC connector Output Connectors Channels 1 to 10 10 output connectors 75 BNC connectors Channel 11 1 output connector 5 V CMOS output 75 BNC connector 2 3 2 I O Characteris...

Страница 12: ...ignal Channel 11 Word clock signal TTL 2 3 4 Signal Switching Switching Method Channels 1 to 3 Relay Channels 4 to 11 Electrical switches Switch Time Manual Switching Time required to switch the outpu...

Страница 13: ...mV Tri Level Sync Signal 337 to 476 mV 600 mV Word clock Signal TTL 1515 to 1907 mV 2400 mV When the Detection Level is HIGH 1 HD SDI Signal 1 485 Gb s 505 to 713 mV 800 mV SD SDI Signal 270 Mb s 505...

Страница 14: ...Conditions Operating Temperature 0 to 45 C Operating Humidity Range 90 RH or less no condensation Optimal Temperature 5 to 40 C Optimal Humidity 85 RH or less no condensation Operating Environment Ind...

Страница 15: ...er or not to automatically switch the output signal when an error occurs in the input signal Select SWITCH FAULT to switch the output signal automatically Select DISABLED to not switch the output sign...

Страница 16: ...ut connector Normally apply the backup signal to this connector See section 4 4 Signal I O 9 REMOTE This is the remote control connector You can use this connector to perform functions such as configu...

Страница 17: ...Top panel 12 DIP switch cover When you remove the four screws and the cover the DIP switches appear DIP switches are used to configure the LT 4441 4442 An explanation of the settings is printed on the...

Страница 18: ...does not function when it is in this state Figure 4 1 Standby mode Leaving Standby Mode When the LT 4441 4442 leaves Standby mode the SYNC SOURCE PRIMARY AUTO SWITCHING SWITCH FAULT and KEY LOCK ON L...

Страница 19: ...the Cover Inlet Stopper 1 Cover the power cord with the cover inlet stopper 2 Push the cover inlet stopper until you hear a click to attach it to the AC inlet 3 Check that the cover inlet stopper is...

Страница 20: ...hes on the top panel to configure the LT 4441 4442 To access the DIP switches first remove the DIP switch cover by unscrewing its four screws The following figure shows the DIP switches This figure sh...

Страница 21: ...ed Input signal settings CH 11 S13 All OFF No signal selected VREF LOW S1 All ON Error detection reference settings VREF HIGH S2 All OFF LOW USER ADJUST1 RV1 Error detection level settings user define...

Страница 22: ...osition If the settings do not match the signals that you apply or if you set two or more slide switches to the ON position for a single DIP switch errors will occur If you specify a signal with a DIP...

Страница 23: ...Error detection reference settings Table 4 4 Error detection levels Error Detection Level 1 No Signal Type VREF LOW VREF HIGH SW1 NTSC analog black burst signal 180 to 227 mV 210 to 264 mV SW2 PAL an...

Страница 24: ...to ON as shown in section 4 3 2 Input Signal Settings and then adjust the trimmer You can set up to two user defined error detection levels When you set SW6 to ON adjust RV1 When you set SW7 to ON adj...

Страница 25: ...channel The factory default setting is high speed for all channels Figure 4 7 Signal switch time settings Table 4 6 Switch time Switch Time Remark No Channel High Speed OFF Low Speed ON SW1 Channel 4...

Страница 26: ...u can use the SYNC SOURCE key to switch the output signal However this setting is valid when AUTO SWITCHING is set to DISABLED If AUTO SWITCHING is set to SWITCH FAULT even if you set the operation mo...

Страница 27: ...Connect the output connector to the system s signal input connector The types of signals that you can apply to the LT 4441 4442 differ depending on the channel For details see Table 4 2 Types of input...

Страница 28: ...igure 4 10 KEY LOCK 4 5 2 Switching the Output Signal Under SYNC SOURCE the LED that is lit shows which signal primary or backup is being transmitted from the output connectors The output signal setti...

Страница 29: ...AUTO SWITCHING MODE Input Signal State Output Signal SYNC SOURCE Key Operation Output Signal SYNC SOURCE Key Operation Normal Remains PRIMARY Switches to BACKUP Remains BACKUP Switches to PRIMARY BAC...

Страница 30: ...r display is shared between channels 1 to 11 The appropriate LED blinks when there is an error in any channel from channel 1 to 11 For example if errors occur in the primary signal of channel 1 and in...

Страница 31: ...s not possible Set AUTO SWITCHING to SWITCH FAULT using keys to enable remote control 2 SYNC SOURCE I Each time a low signal is applied SYNC SOURCE switches between PRIMARY and BACKUP 3 SYNC SOURCE PR...

Страница 32: ...nnection example 1 2 6 I Connect a switch to apply a low signal Connect one side of the switch to the remote connector and the other side to ground 3 4 O 5 O Connect an LED so that it will light when...

Страница 33: ...accordance with the standards However because of factors such as parts wearing out over time the performance of the instrument may degrade To ensure stable performance we recommend that you have the...

Страница 34: ...Following information is for Chinese RoHS only LT 4441 4442 2006 2 28 SJ T11364 2006 Hazardous Substances in each Part Parts Pb Hg Cd Cr PBB PBDE SJ T11363 2006 SJ T11363 2006 Ver 1...

Страница 35: ...LEADER ELECTRONICS CORP 2 6 33 Tsunashima Higashi Kohoku ku Yokohama 223 8505 Japan PHONE 81 45 541 2123 FAX 81 45 541 2823 http www leader co jp July 17 2012 Ver 4...

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