XtendLan 1U J Series, User Manual

Page 1: ...1U J Series Standalone DVR User s Manual 1...

Page 2: ...ONTROLS 15 2 1 Front Panel 15 2 2 Rear Panel 16 2 3 Connection Sample 17 2 4 Remote Control 18 2 5 Mouse Control 20 2 6 Virtual Keyboard Front Panel 21 2 6 1 Virtual Keyboard 21 2 6 2 Front Panel 21 3...

Page 3: ...tion 25 3 7 1 Alarm Input and Output Details 26 3 7 2 Alarm Input Port 27 3 7 3 Alarm Output Port 27 3 8 RS232 28 3 9 RS485 28 3 10 Other Interfaces 29 4 OVERVIEW OF NAVIGATION AND CONTROLS 30 4 1 Log...

Page 4: ...up 43 4 7 Backup 45 4 7 1 Detect Device 45 4 7 1 Backup 45 4 8 PTZ Control and Color Setup 46 4 8 1 Cable Connection 46 4 8 2 PTZ Setup 47 4 8 3 3D Intelligent Positioning Key 48 4 9 Preset Patrol Pat...

Page 5: ...9 Display 63 5 3 10 Default 65 5 4 Search 66 5 5 Advanced 66 5 5 1 HDD Management 66 5 5 2 Abnormity 67 5 5 3 Alarm Output 68 5 5 4 Manual Record 68 5 5 5 Account 68 5 5 6 Auto Maintain 69 5 5 7 TV A...

Page 6: ...2 7 Border Setup 77 6 2 8 Activate Border Function 77 6 2 9 Flip 77 7 WEB CLIENT OPERATION 79 7 1 Network Connection 79 7 2 Login 79 7 2 1 Real time Monitor 81 7 2 2 PTZ 83 7 2 3 Color 86 7 2 4 Pictu...

Page 7: ...9 FAQ 121 APPENDIX A HDD CAPACITY CALCULATION 126 APPENDIX B COMPATIBLE USB DRIVE LIST 127 APPENDIX C COMPATIBLE CD DVD BURNER LIST 128 APPENDIX D COMPATIBLE SATA HDD LIST 129 APPENDIX E COMPATIBLE DI...

Page 8: ...d to be a reference tool for the installation and operation of your system Here you can find information about this series DVR features and functions as well as a detailed menu tree Before installatio...

Page 9: ...apply power to the DVR before completing installation Do not place objects on the DVR 4 Qualified engineers needed All the examination and repair work should be done by the qualified service engineers...

Page 10: ...lligent resident zone factory warehouse resources and water conservancy 1 2 Features This series product has the following features z Real time monitor It has analog output port VGA port and HDMI port...

Page 11: ...s may be found due to different series 1 3 Specification Parameter 4 ch 8 ch 16 ch Main Processor High performance industrial embedded micro controller OS Embedded LINUX System Resources Multiplex ope...

Page 12: ...n time information and privacy mask zone TV Adjust Adjust TV output zone suitable to anamorphic video Channel Lock Cover secret channel with blue screen though system is encoding normally Screen lock...

Page 13: ...hannel remotely DVR configuration through client end and web browser Upgrade via client or browser to realize remote maintenance View alarm information such as external alarm motion detection and vide...

Page 14: ...r serial port user and network user Configurable user power User Manageme nt Support user group and its corresponding rights modification No limit to the user or group amount Password modification Adm...

Page 15: ...meral Assistant function such as PTZ menu Up 1 Down 4 S T In text mode input number 1 4 English character G H I Shift current activated control Left 2 Right 3 W X When playback click these buttons to...

Page 16: ...umber 6 English character M N O Play Next 9 f In playback mode playback the next video In menu setup go to down ward of the dropdown list In text mode input number 9 English character W X Y Z Play Pau...

Page 17: ...udio input 3 Video CVBS output 4 Audio output 5 Network port 6 USB port 7 HDMI port 8 RS232 port 9 Video VGA output 10 Alarm input alarm output RS485 port 11 Power input port 12 Power button When conn...

Page 18: ...Figure 2 5 2 4 Remote Control The remote control interface is shown as in X282H282H282H286HFigure 2 6X Please note remote control is not our standard accessory and it is not included in the accessory...

Page 19: ...ease refer to the ENTER button in the front panel 7 Cancel Please refer to the ESC button in the front panel 8 Direction key Please refer to the direction buttons in the front panel 9 forward Various...

Page 20: ...ere stands for backspace button stands for space button In English input mode _stands for input a backspace icon and stands for deleting the previous character In numeral input mode _ stands for clear...

Page 21: ...ress middle button Page up or page down Move mouse Select current control or move control Select motion detection zone Drag mouse Select privacy mask zone 2 6 Virtual Keyboard Front Panel 2 6 1 Virtua...

Page 22: ...nt Panel and Real Panel For detail information of the function keys in the front panel and the ports in the rear panel please refer to the appendix for detail information The model in the front panel...

Page 23: ...era signal The camera shall be installed in a cool dry place away from direct sunlight inflammable explosive substances and etc The camera and the DVR should have the same grounding to ensure the norm...

Page 24: ...p it away from strong electromagnetic interference devices Using TV as video output device is not a reliable substitution method You also need to reduce the working hour and control the interference f...

Page 25: ...case you can adopt the following measures z Use better sound pick up with better directing property z Reduce the volume of the sound box z Using more sound absorbing materials in decoration can reduce...

Page 26: ...der a Ensure the decoder has the same grounding with DVR otherwise you may not control the PTZ Shielded twisted wire is recommended and the shielded layer is used to connect to the grounding b Avoid h...

Page 27: ...e parallel connect COM end and GND end of the alarm detector Provide external power to the alarm detector z Please parallel connect the Ground of the DVR and the ground of the alarm detector z Please...

Page 28: ...l of the unit To connect a NKB keyboard to the DVR 1 Assemble the KBD keyboard according to the instructions in its accompanying installation manual 2 Connect the KBD keyboard into one of the RS232 po...

Page 29: ...29 Figure 3 8 3 10 Other Interfaces There are still other interfaces on the DVR such as USB ports You can refer to the X290H290H290H294HFigure 3 9X for more information Figure 3 9...

Page 30: ...888888 administrator local only z Username 666666 Passwords 666666 Lower authority user who can only monitor playback backup and etc z Username default Password default hidden user You can use USB mo...

Page 31: ...her ways is to press power button on the front panel for at least 3 seconds system will stop all operations Then you can click the power button in the rear panel to turn off the DVR 4 1 4 Auto Resume...

Page 32: ...ays for you to go to manual record menu z Right click mouse or in the main menu Advanced Manual Record z In live viewing mode click record button in the front panel or record button in the remote cont...

Page 33: ...Setting Schedule The corresponding indication light in front panel will turn on Figure 4 7 z All channel manual record Please highlight ALL after Manual See X298H298H298H302HFigure 4 8X When system i...

Page 34: ...are three file types z R Regular recording file z A External alarm recording file z M Motion detection recording file Figure 4 10 Please refer to the following sheet for more information Serial Number...

Page 35: ...tem can switch to the corresponding channel video of the same time 4 3 2 5 Digital zoom When the system is in full screen playback mode drag your mouse in the screen to select a section and then left...

Page 36: ...te to view file list In X300H300H300H304HFigure 4 11X there are video files in Juneh and 14th Double click the date to view its file list Figure 4 11 4 4 Schedule After system booted up it is in defau...

Page 37: ...to copy one channel setup to another After setting in channel 1 you can click paste button and turn to channel 2 and then click copy button You can finish setting for one channel and then click save b...

Page 38: ...input upload interval z In Detect interface please enable snapshot function for specified channels Or in alarm interface please enable snapshot function for specified channels Please refer to the fol...

Page 39: ...n detection complete system auto delays detecting for a specified time The value ranges from 10 300 Unit second z Region Click select button the interface is shown as in X304H304H304H308HFigure 4 17 H...

Page 40: ...usiness day and non business day z Anti dither Here you can set anti dither time z Alarm output when alarm occurred system enables peripheral alarm devices z Tour Here you can enable tour function whe...

Page 41: ...the interface is shown as in X311H311H311H315HFigure 4 21X This function allows you to be informed when video loss phenomenon occurred You can enable alarm output channel and then enable show message...

Page 42: ...pattern activation operation when video loss occurs Please refer to chapter 4 5 2 motion detection for detail information Note In Detect interface copy paste function is only valid for the same type...

Page 43: ...ither Here you can set anti dither time z Show message System can pop up a message to alarm you in the local host screen if you enabled this function z Alarm upload System can upload the alarm signal...

Page 44: ...44 Figure 4 23 Figure 4 24 Figure 4 25...

Page 45: ...ice includes USB burner flash disk SD card and portable HDD Figure 4 27 4 7 1 Backup Select backup device and then set channel file start time and end time Click add button system begins search All ma...

Page 46: ...isted CD ROM brand Tips During backup process you can click ESC to exit current interface for other operation The system will not terminate backup process Note When you click stop button during the bu...

Page 47: ...s shown as in X322H322H322H326HFigure 4 30X Here you can set the following items z Channel select the current camera channel z Protocol select corresponding PTZ protocol such as PELCOD z Address defau...

Page 48: ...ent Positioning Key In the middle of the eight direction arrows there is a 3D intelligent positioning key See X327H327H327H331HFigure 4 34 X Please make sure your protocol supports this function and y...

Page 49: ...35HFigure 4 36X Here you can activate the following functions z Preset z Tour z Pattern z Auto scan z Auto pan z Flip z Reset z Page switch Figure 4 36 Note z Preset tour and pattern all need the valu...

Page 50: ...click patrol button The interface is shown as in X340H340H340H344HFigure 4 38X Input preset number and add this preset to a patrol tour For each patrol tour you can input max 80 presets Figure 4 38 4...

Page 51: ...limit button Repeat the above procedures to set right limit Figure 4 40 4 9 8 Activate Auto Scan In X351H351H351H355HFigure 4 36X click Auto Scan button the system begins auto scan Correspondingly th...

Page 52: ...m Detect Pan Tilt Zoom Display Default Search Advanced HDD Management Alarm Output Abnormity Manual Record Account Auto Maintain TV Adjust Shutdown 5 2 Main Menu After you logged in the system main me...

Page 53: ...terface is shown as in X358H358H358H362HFigure 5 4X Here you can set start time and end time by setting corresponding week setup In X359H359H359H363HFigure 5 4X enable date button you can see an inter...

Page 54: ...o control several DVRs you can give a name to each DVR for your management z Video standard There are two formats NTSC and PAL z Auto logout Here is for you to set auto logout interval once login user...

Page 55: ...e is 6f s z Bit rate type System supports two types CBR and VBR In VBR mode you can set video quality z Quality There are six levels ranging from 1 to 6 The sixth level has the highest image quality z...

Page 56: ...ata bit The value ranges from 5 to 8 z Stop bit There are three values 1 1 5 2 z Parity there are three choices none odd even System default setup is z Function Console z Baud rate 115200 z Data bit 8...

Page 57: ...u enable this function The download speed is 1 5X or 2 0X of the normal speed After completing all the setups please click save button system goes back to the previous menu Figure 5 9 5 3 5 1 Advanced...

Page 58: ...P multiple cast group address 224 0 0 0 239 255 255 255 D address space z The higher four bit of the first byte 1110 z Reserved local multiple cast group address 224 0 0 0 224 0 0 255 TTL 1 When sendi...

Page 59: ...der Click save button you need to restart to activate your configuration After rebooting DVR will connect to internet automatically The IP in the PPPoE is the DVR dynamic value You can access this IP...

Page 60: ...ver In network DDNS please select DDNS type and highlight enable item Them please input your PPPoE name you get from you IPS and server IP PC with DDNS Click save button and then reboot system Click s...

Page 61: ...function first and then double click DNS item If the DHCP function enabled successfully system can get the DNS server IP address See Figure 5 17 Figure 5 17 5 3 5 8 FTP You need to download or buy FT...

Page 62: ...UTH and then test it can modify or delete folder or not See X373H373H373H377HFigure 5 19X Figure 5 19 System also supports upload multiple DVRs to one FTP server You can create multiple folders under...

Page 63: ...r completed channel and weekday setup you can set two periods for one each channel 5 3 6 Alarm Please refer to chapter 4 6 Alarm Setup and Activation 5 3 7 Detect Please refer to chapter 4 5 Detect 5...

Page 64: ...t from the dropdown list self adaptive VGA TV z Enable tour activate tour function z Interval Input proper interval value here The value ranges from 5 120 seconds In tour process you can use mouse or...

Page 65: ...r enabling window switch and stands for enabling window function See X380H380H380H384HFigure 5 24X Figure 5 24 5 3 10 Default Click default icon system pops up a dialogue box You can highlight to rest...

Page 66: ...etup after default operation Figure 5 25 5 4 Search Please refer to chapter 4 3 Search 5 5 Advanced Double click advanced icon in the main window the interface is shown as below See X382H382H382H386HF...

Page 67: ...is interface is just like the abnormity setup Please refer to chapter 5 5 2 for detail information Please highlight icon to select the corresponding function Figure 5 28 5 5 2 Abnormity Abnormity inte...

Page 68: ...ert you when alarm occurs Figure 5 29 5 5 3 Alarm Output Here is for you to set proper alarm output Please highlight icon to select the corresponding alarm output After all the setups please click OK...

Page 69: ...erior use only and can not be deleted When there is no login user hidden user default automatically login You can set some rights such as monitor for this user so that you can view some channel view w...

Page 70: ...o adjust each item After all the setups please click OK button system goes back to the previous menu Figure 5 33 5 6 Information Here is for you to view system information There are total five items H...

Page 71: ...he system to solve this problem After system booted up if there is any confliction system goes to HDD information interface directly Please note system does not ask you to deal with it forcedly When H...

Page 72: ...t alarm event record operation log clear and etc Pleased select start time and end time then click search button You can view the log files Please page up down button to view if there are more than te...

Page 73: ...39 5 7 Shutdown Double click shutdown button system pops up a dialogue box for you to select See X396H396H396H400HFigure 5 40X z Logout menu user log out menu You need to input password when you login...

Page 74: ...n Tilt Zoom the interface is shown as in X398H398H398H402HFigure 6 2X Here you can set the following items z Zoom z Focus z Iris Please click icon and to adjust zoom focus and Iris Figure 6 2 In X399H...

Page 75: ...e Function key function Shortcut key Function key function Shortcut key Zoom Near Far Focus Near _ Far Iris close W Open f 6 2 Preset Patrol Pattern Border Function In X402H402H402H406HFigure 6 2X cli...

Page 76: ...11H411H415HFigure 6 6X please input preset number in the No blank and click preset button 6 2 3 Patrol Setup In X412H412H412H416HFigure 6 5X click patrol button The interface is shown as in X413H413H4...

Page 77: ...please go to X423H423H423H427HFigure 6 10X and click left limit button Repeat the above procedures to set right limit Figure 6 10 6 2 8 Activate Border Function In X424H424H424H428HFigure 6 6X click...

Page 78: ...78 Figure 6 11...

Page 79: ...t web control and the new version can overwrite the previous one z If you want to un install the web control please run uninstall webrec2 0 bat Or you can go to C Program Files webrec to remove single...

Page 80: ...t your user name and password Default factory name is admin and password is admin Note For security reasons please modify your password after you first login Figure 7 3 After you logged in you can see...

Page 81: ...5 Here you can view window switch button You can also select video priority between fluency or real time System monitor window switch supports full screen 1 window 4 window 6 window 8 window 9 window...

Page 82: ...atus z 2 Change show mode resize or switch to full screen mode z 3 Local record When you click local record button the system begins recording and this button becomes highlighted You can go to system...

Page 83: ...ectional talk process system will not encode the audio data from the 1 channel Local Play The Web can playback the saved Extension name is dav files in the PC end Click local play button system pops u...

Page 84: ...n size It can realize PTZ automatically 7 2 2 2 Speed System supports eight level speed You can select from the dropdown list Speed 2 is faster than speed 1 7 2 2 3 Zoom Focus Iris Here is a sheet for...

Page 85: ...7 11 to implement camera operation Then you can click stop record button Now you have set one pattern 7 2 2 6 Preset In X441H441H441H445HFigure 7 12X move the camera to your desired location and then...

Page 86: ...ent channel border becomes green Or you can click default button to use system default setup Figure 7 14 7 2 4 Picture Path and Record Path Click more button in X445H445H445H449HFigure 7 14X you can s...

Page 87: ...following dialogue box See Figure 7 18 Please click OK to reboot Figure 7 18 If there is local use logged in the system menu or the Web logged in user has no right to reboot the device system pops up...

Page 88: ...ormation Here you can view local storage status and network status including free capacity and total capacity See X450H450H450H454HFigure 7 20X Figure 7 20 7 3 1 3 Log Here you can view system log See...

Page 89: ...data management alarm event record operation user management log clear and file operation Search You can select log type from the drop down list and then click search button to view the list Clear Yo...

Page 90: ...General Setup Here you can set system time record length video format and etc See X453H453H453H457HFigure 7 23X Figure 7 23 Figure 7 24 Figure 7 25 Please refer to the following sheet for detailed in...

Page 91: ...oot to get the modification activated HDD Full There are two options stop recording or overwrite the previous files when HDD is full When current working HDD is overwriting or it is full now system st...

Page 92: ...otion stream and alarm stream You can select different encode frame rates form different recorded events System supports active control frame function ACF It allows you to record in different frame ra...

Page 93: ...is the max value In dynamic video system needs to low frame rate or video quality to guarantee the value z The value is null in VBR mode z Please refer to recommend bit rate for the detailed informat...

Page 94: ...tton Refresh Click this button to get device latest configuration information Click copy interface the interface is shown as in X456H456H456H460HFigure 7 28X If you have completed the setup for channe...

Page 95: ...t and alarm snapshot z Please select date Current setup applies to current day by default You can draw a circle before the week to apply the setup to the whole week z After complete setup please go ba...

Page 96: ...n Keyboard COM control protocol You can use keyboard to control DVR via COM Data Bit The value ranges from 5 to 8 Stop Bit There are three options 1 2 Baud Bit You can select corresponding baud bit he...

Page 97: ...access current device Multiple cast group z Set MULCAST address and port z Enable MULCAST function Remote Host PPPOE z Input the PPPoE user name and password you get from the IPS internet service prov...

Page 98: ...ue is 25 You can modify it if necessary User Name The sender email account user name Password The sender email account password Sender Sender email address Subject Input email subject here Address Inp...

Page 99: ...lize DDNS function Server IP DDNS server IP address Server Port DDNS server port Domain Name Your self defined domain name User The user name you input to log in the server Password The password you i...

Page 100: ...gth system only uploads the set length and auto ignore the left section When interval value is 0 system uploads all corresponding files Password The password you need to log in the server Remote Path...

Page 101: ...Name Time Zone London GMT 0 Berlin GMT 1 Cairo GMT 2 Moscow GMT 3 New Deli GMT 5 Bangkok GMT 7 Beijing Hong Kong GMT 8 Tokyo GMT 9 Sydney GMT 10 Hawaii GMT 10 Alaska GMT 9 Pacific Time P T GMT 8 Ameri...

Page 102: ...re 7 37 7 3 2 6 Alarm Alarm setup interface is shown as in X467H467H467H471HFigure 7 38X Please make sure you have connected the corresponding alarm output device such as the light buzzer and etc Figu...

Page 103: ...iod The value ranges from 0 to 15s Normal Out Enable alarm activation function You need to select alarm output port so that system can activate corresponding alarm device when alarm occurred Alarm Lat...

Page 104: ...ave You can click save button after you complete setup for one channel or you can complete the whole setups and then click save button Refresh Click this button to get device latest configuration info...

Page 105: ...back to motion detection interface please click save button to exit Anti dither System only memorizes one event during the anti dither period The value ranges from 0s to 15s Normal out z There is 2 ch...

Page 106: ...his button to get device latest configuration information 7 3 2 8 PTZ PTZ interface is shown as in X470H470H470H474HFigure 7 42X Please note before operation please make sure you have set speed dome a...

Page 107: ...k this button to get device latest configuration information 7 3 2 9 Default Backup Default Restore factory default setup You can select corresponding items Backup Export current configuration to loca...

Page 108: ...n your right become valid You can check the corresponding item here See X472H472H472H476HFigure 7 44X Figure 7 44 Please refer to the following sheet for detailed information Parameter Function Format...

Page 109: ...r to the following sheet for detailed information Parameter Function Alarm output There are three output channels Multiple choices Activate Enable disable alarm output device After the Web activated t...

Page 110: ...l Enable corresponding channel to record no matter what period applied in the record setup Stop Stop current channel record no matter what period applied in the record setup Operation here is the same...

Page 111: ...111 Figure 7 47 7 3 3 5 Auto Maintenance Here you can select auto reboot and auto delete old files interval from the dropdown list See X476H476H476H480HFigure 7 48X Figure 7 48...

Page 112: ...rame rate You can select from the dropdown list The value ranges from 1f s to 7f s Resolution You can select from the dropdown list For 16 series DVR Channel 1 and channel 9 support D1 CIF QCIF Channe...

Page 113: ...alarm output can delay for the specified time after alarm stops Then system disables alarm and corresponding activation output The value ranges from 10s to 300s Send email If you enable this function...

Page 114: ...button you can see an interface is shown as in X479H479H479H483HFigure 7 52X Please select record playback mode and then select start time end time and channel Then please click search button you can...

Page 115: ...nd path to download the file s to your local pc Figure 7 53 Now you can see system begins download and the download button becomes stop button You can click it to terminate current operation At the bo...

Page 116: ...ownload by file Select the file s and then click download button Download by time Download the recorded file s within your specified period Download Select the file you need multiple choices and then...

Page 117: ...ay Figure 7 56 7 5 Alarm Click alarm function you can see an interface is shown as in X483H483H483H487HFigure 7 57X Here you can set device alarm type and alarm sound setup Playback device IP address...

Page 118: ...ripheral device alarms Alarm Type External alarm Alarm input device sends out alarm Listen alarm System notifies web when alarm occurs you select from the above event type and then web can notify user...

Page 119: ...89HFigure 7 59X You need to input user name and password to login again Figure 7 59 7 8 Un install Web Control You can use web un install tool uninstall web bat to un install web control Please note b...

Page 120: ...120 8 Professional Surveillance System Besides Web you can use our Professional Surveillance Software PSS to login the device For detailed information please refer to PSS user s manual...

Page 121: ...environment is too harsh too much dust z Hardware malfunction 3 System can not detect hard disk There are following possibilities z HDD is broken z HDD ribbon is damaged z HDD cable connection is loos...

Page 122: ...ere are following possibilities z It is not a power picker z It is not a power acoustics z Audio cable is damaged z DVR hardware malfunctions 9 There is audio when monitor but there is no audio when s...

Page 123: ...indows VISTA control z ActiveX control has been disabled z No dx8 1 or higher Please upgrade display card driver z Network connection error z Network setup error z Password or user name is invalid z C...

Page 124: ...Please upgrade your system 19 Alarm function is null There are following possibilities z Alarm setup is not correct z Alarm cable connection is not correct z Alarm input signal is not correct z There...

Page 125: ...ansformed to AVI via media player z No DivX503Bundle exe or ffdshow 2004 1012 exe in Windows XP OS 23 Forget local menu operation password or network password Please contact your local service enginee...

Page 126: ...capacity i m which is storage of each channel needed unit Mbyte i m i q i h i D 2 In the formula i h means the recording time for each day hour i D means number of days for which the video shall be k...

Page 127: ...uzer Freedom 1G Sandisk Cruzer Freedom 2G Kingston DataTraveler 1G Kingston DataTraveler 2G Kingston DataTraveler 1G Kingston DataTraveler 2G Maxell USB Flash Stick 128M Maxell USB Flash Stick 256M Ma...

Page 128: ...racy of the table below And you can use the USB cable with the model recommended to set USB burner Manufacturer Model Port Type Type Sony DRX S50U USB DVD RW Sony DRX S70U USB DVD RW Sony AW G170S SAT...

Page 129: ...SATA Seagate Barracuda 7200 11 ST31500341AS 1 5T SATA Seagate Pipeline HD 2 ST3320311CS 350G SATA Seagate SV35 2 ST3160815SV 160G SATA Seagate SV35 2 ST3250310SV 250G SATA Seagate SV35 2 ST3320620SV...

Page 130: ...igital Cariar SE16 WD4000KD2 400G SATA Western Digital Cariar SE16 WD3200KS2 320G SATA Western Digital Cariar SE16 WD2500KS2 250G SATA Western Digital RE series WD5000ABYS 500G SATA Western Digital Ca...

Page 131: ...22 inch wide screen LENOVO CRT LXB FD17069HB 17 inch LENOVO CRT LXB HF769A 17 inch LENOVO CRT LX GJ556D 17 inch Samsung LCD 2494HS 24 inch Samsung LCD P2350 23 inch Samsung LCD P2250 22 inch Samsung...

Page 132: ...t emphasizing the all round protection including building transmission cable device ground and etc There shall be comprehensive management and the measures shall be scientific reliable practical and e...

Page 133: ...as many modes but the selection depends on the system structure and performance The following are some successfully experience from our past work One point ground In the following figure you can see t...

Page 134: ...ering the earthing you need to think about two aspects The first is the system compatibility and the other is the external interference coupling into the earth circuit which results in system error Fo...

Page 135: ...ng figure There is a shortcut way to check these thee cables connection are standard or not not the accurate check Importance In the following operations the multimeter range shall be at 750V For E ea...

Page 136: ...one hand to hold the metal end and then the other hand insert the pen to the N port of the socket See the following figure If the multimeter shows 0 then you can see current N cable connection is stan...