Installation/User Manual
Contents
1. LED Display Figure 9 ECU Initialization 1 Loading the software firmware Figure 10 2 Searching for the inverters Firmware Version Figure 11 A word about network communication protocols The ECU needs to have access to the router via an IP address The ECU will only search for and obtain a DHCP IP address during its powering up sequence For example the LED screen on the front of the ECU displays an IP address such as 192 168 2 101 if the connection to the router is successful the IP address will vary based on router supplier so check with the user manual for specifics If however the LED displays 60 190 131 228 the ECU router connection has not been successful in which case you ll need to check all of the cabling connections and reboot the ECU by removing the power cable for a few seconds and reconnecting APsytems ECU 3 V3 8 Installation User Manual 8 ECU INITIALIZATION SEQUENCE NOTE The complete initialization sequence can take several minutes up to 15 minutes depending on the complexity of the installation 3 Operating Interface Router IP Address EMA Communication Figure 12 Current Power Production Lifetime Production Reporting Inverters Router IP Address The LED screen on the front of the ECU displays an IP address such as 192 168 2 101 if the connection to the router is successful the IP address will vary based on router supplier so check with the u2. LOCAL NETWORK INTERFACE Clearing GFDI Faults 1 Select Configuration at the top of page 2 Select GFDI The GFDI page is displayed W4 ars Ea as Figure 24 3 Place a check mark in the Clear GFDI column for those inverters that need to have GFDI cleared 4 Press Clear GFDI button at the bottom of the page APsytems ECU 3 V3 8 Installation User Manual 18 LOCAL NETWORK INTERFACE Turning ON and OFF Inverters Individual or all of the inverters can be turned ON and OFF through the ECU 1 Select Configuration at the top of page 2 Select Remote Control The Remote Control page is displayed W4 aPs aa Figure 25 If selecting individual inverters 3 Place a check mark in either Turn On or Turn Off column for those inverters that need to be turned on or off 4 Press Turn On Off at the bottom of the page If turning all of the inverters On or Off 3 Press either the Turn on all inverters or Turn off all inverters buttons at the bottom of the page APsytems ECU 3 V3 8 Installation User Manual 19 LOCAL NETWORK INTERFACE Managing Inverter UIDs The inverter UIDs must be programmed into the ECU for the ECU to recognize the inverters The ECU will NOT auto sense the inverters Initial Programming of the ECU with the Inverter UIDs 1 Select Administration at the top of the page 2 Select ID Management The UID Ma
3. C E TS EE Figure 22 aes ore ve sto D500006TSSEB Ts a eS E EE E E E E 030000681358 ore ee oso FOSOS A L E eS E 1030000681158 ore oases TO3000068179 4 ore ere oso 1030000681795 ortie eve oso TD300006RIOF A eS a AS E 1030000682058 ore ese na Ts a CS CS 2030000682108 SS ET SS E TOSET TA T E eae oe IMAMA B i w Ali We wy savor wits 11 1 41 47 APsytems ECU 3 V3 8 Installation User Manual 16 LOCAL NETWORK INTERFACE Managing System Parameters The inverters are pre programmed with system parameters with factory setting but these parameters can be changed based on local grid and utility requirements WARNING Only certified APsystems Installation Technicians should be managing the system parameters Resetting these parameters incorrectly can severely affect system performance Contact APsystems Technical Support APsystems Technical Support at 844 666 7034 or support APsystems com BEFORE attempting to change the system parameters 1 Select Configuration at the top of page 2 Select Parameters The Parameters screen is displayed 4 APs Engish ch kiome Beal Tune Data Parameters GEDI Remete Control Figure 23 403000068145 203000068203 1 URAL IN 3 Make the parameter changes that are required 4 Press Save It will take a few minutes for the inverter parameter changes to be reflected in the list of inverters APsytems ECU 3 V3 8 Installation User Manual 17
4. enter the IP Address that is displayed on your ECU in to the URL search field The ECU s splash screen is displayed W4 APs onii Howe Beal Tant Dass Coshgus ston Adank maw p 5 Figure 18 4A PII C101 Abcsapy Powe Syuan nx APsytems ECU 3 V3 8 Installation User Manual 12 LOCAL NETWORK INTERFACE Connecting Directly to the ECU Using a Windows based PC l 2 3 4 5 6 G Connect the computer to the ECU using a CAT5 network cable Power up the ECU by connecting the power cable Open the Network and Sharing Center in the Control Panel on the PC Select Local Area Connection for Unidentified Network Select Properties when Local Area Connection Status LAC window is displayed Highlight Internet Protocol Version 4 TCP IPuv4 when the Local Area Connection Properties window is displayed Select Use the Following IP Address radial button and the enter IP Address and Subnet Mask as listed below Do not enter anything in the DNS Server address section e IP Address 60 190 131 190 Subnet Mask 255 0 0 0 Select OK on the IPv4 Properties window Close the LAC Properties window Close the LAC Status window Close the Network and Sharing Center Using a standard web browser on your computer enter the IP Address that is displayed on your ECU in to the URL search field The ECU s splash screen is displayed W
5. 4 APs asthe Houe Real Tant Duss Coahgus stan Afrah tw Figure 19 NAPS Jt A Ami CIOL Alteeeegy Power Syuan nx APsytems ECU 3 V3 8 Installation User Manual 13 LOCAL NETWORK INTERFACE Using an Apple Mac 1 Connect the computer to the ECU using a CAT5 network cable 2 Power up the ECU by connecting the power cable 3 Select the Apple icon in the menu bar to access System Preferences 4 Select Network in the Internet amp Wireless section of the System Preferences 5 Select Ethernet on the left side of the Network window 6 Select Manually from the Configure Pu drop down menu 7 Enter the following in the appropriate fields IP Address 60 190 131 190 Subnet Mask 255 0 0 0 8 Leave the Router field blank 9 Select Apply 10 Using a standard web browser on your computer enter the IP Address that is displayed on your ECU in to the URL search field The ECU s splash screen is displayed W4 APs pilini Houe Beal Tant Dats Coahges stan Adank muy Figure 20 NAPS CIOL Alteeeege Power Syuan I APsytems ECU 3 V3 8 Installation User Manual 14 LOCAL NETWORK INTERFACE Viewing the ECU s Home Page 1 Select Home at the top of the page The Home Page is displayed 64 APS Enchiah Chineas tt Syetee Power a Generation Of Current Day Le er of Inverters tk Figure 21 hast Mumber of Inverters Onlire a E aal ee r T a E a Signa
6. ECUID 2030000065 Time Zone Select Time Zone gt j Sent The Inverter Links Configuration page is displayed Operation Selection Add or Delete o 4 P Settings Sign out 4 APS INSTALLER PORTAL gt 4 D ENERGY MONITORING amp ANALYSIS CUSTOMER REGISTRATION FAQ INSTALLER ERSA ECU SETTING ECU Configuration Inverter Links Configuration Typ ea o ECI RN Inverter ID Field Figure 34 Operation Clear Al Add Deets inverter ID Sent APsytems ECU 3 V3 8 Installation User Manual 27 REMOTE ECU MANAGEMENT Adding Complete List of Inverter UIDs for a Newly Installed System 1 Select Add in Operation Selection 2 Enter all of the inverter UIDs into the Inverter ID Field one per line 3 Press Send Delete UIDs from Inverter List 1 Select Delete in Operation Selection 2 Enter all of the inverters to be removed from the Inverter ID Field 3 Press Send APsytems ECU 3 V3 8 Installation User Manual 28 TECHNICAL DATA Ethernet 40 100M Auto sensing Auto negotiation AC Outlet 110 240 VAC 50 60 Hz Dimensions W XH X D 182 mm X 113 mm X42 mm Ambient Temperature 40 C to 65 C Range Nature Convection No Fans Enclosure Environmental Indoor NEMA 1 IP30 Rating Term IEC 60950 1 EN60950 1 IEC 60529 EN 60529 ANSI UL 60950 1 CAN CSA C22 2 No 60950 1 Compliance UL50E FCC part 15 EN61000 6 1 EN61000 6 3 ICES 003 AS NZS 60950 1 GB T17799 This device complies wit
7. Installation User Manual APsystems ECU 3 Energy Communication Unit ECU Version 4 2 7 15 Ss APsystems e ALTENERGY POWER APsystems 600 Ericksen Ave NE Ste 200 Seattle WA 98110 TEL 844 666 7035 EMAIL info APsystems com WEB www APsystems com All Rights Reserved b U efrog SO a r TABLE OF CONTENTS INTRODUCTION cenene eE a E EE EE EEEE EErEE 3 HARDWARE INSTALLATION cccccescceeceeseeeseeeseeeueeeneeneeeueeuneeeneeeneeeueeeneeenens 4 Preparation Selecting an Installation Location for the ECU Cable Connections Internet Connection Power Up ECU ECU INITIALIZATION SEQUENCE eee ee cee ee een eeeeeeeeneeeeeeseeeeseneseaeees 8 ECU Initialization USING THE ECU MENU BUTTON wiiicscicccertsniiciuscecustinwsadouanesinnsnaianeaciaenideneunias 10 LOCAL NETWORK INTERFACE nssnasnnnnnnnnnnnnnnnnnnsnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 12 Connecting to the ECU via the LAN Connecting Directly to the ECU Viewing the ECU s Home Page Viewing the Real Time Data Managing System Parameters Clearing GFDI Faults Turning ON and OFF Inverters Managing Inverter UIDs Changing the Date Time Zone Managing the Network Connection REMOTE ECU MANAGEMENT eisisiaiiisatacengeeseissssvesxeenssissuscteboonaeveandanwenianeundaes 24 TECAHNICAE DATA srin E E 29 APsystems ECU 3 V3 8 Installation User Manual INTRODUCTION The APsystems Communicator our state of the art Energy Communication Unit ECU is the informa
8. Psystems EMA 1 Log onto your APsystems EMA account Your Customer List within the Installer Portal is displayed 2 Select the customer s ECU you want to manage and click on the pencil icon in the Change ECU Status column p74 APS smuerrorm wee eo ENERGY MONITORING amp ANALYSIS CUSTOMIA REGISTRATION FAQ INSTALLER Figure 50 Uw Acccut ECU UserMeme Couwy State oy I nagar One OPRSTS one 1 PVU M 200000008688 Sieve Caoran Urag States Catone Dawes 2074 0207 f X 2 APGAbecetep AOD John Door Une Ses 0 Washer Passo 3074 01 21 J X 3 Nor 202000000557 Nick Orouin Uwsc Rea AA Tier 2013 42 90 J X 4 Mian 205000000550 Mike Larsce Utes Raves Wimhingon Merce ied 43 2043 10 eo X 4 renat turd Gaptayre to 4 Firat Poey 1 eet Last APsytems ECU 3 V3 8 Installation User Manual 24 REMOTE ECU MANAGEMENT ECU Configuration ECU Status Page The ECU SETTING page is your entry point into managing ECUs remotely ECU SETTING P4 aps i 04 ENERZY MONITORING amp ANALYSIS CUSTOMER REGISTRATION FAQ User Account INSTALLER ECU STATUS Figure 31 Submit Cancel The ECU SETTING tab allows you to Set Time Zones e The ECU time zone can set or adjusted remotely through the ECU Setting tab If the time zone is not properly set the solar production data will not post properly on the EMA site Load Inverter UIDs e Once the ECU has been installed you can access the ECU remotely to add th
9. because the ECU and EMA need to be in synch with each other APsytems ECU 3 V3 8 Installation User Manual 21 LOCAL NETWORK INTERFACE Changing the Date Time Zone It is critical for accurate power production reporting that the ECU is programmed with the correct date time and time zone 1 Select Administration at the top of the page 2 Select Date Time Timezone The Date Time Time Zone page is displayed W4 aPs panhia Leene Real Ime Due Conf we A berate t ID Managereeene Dgr mer T me rome reer SNeteah Coemi f gt AAW Figure 28 CZA ose smi we ee Came pot oy ore COOL Akep Power barn bee 3 Enter the correct date in the Date field 4 Enter the correct time in the Time field 5 Select the correct time zone from the Time Zone pull down NOTE You can skip steps 3 and 4 by select the correct time zone Selecting the correct time zone automatically updates both the date and current time APsytems ECU 3 V3 8 Installation User Manual 22 LOCAL NETWORK INTERFACE Managing the Network Connection The default network connection setting for the ECU is DHCP which allows the ECU to automatically establish a connection assignment from the router The ECU can be assigned a static IP Address if the network design requires it Assigning a Static IP Address to the ECU 1 Select Administration at the top of the page 2 Select Network Connectivity Th
10. e Network Connectivity page is displayed 4 aps bast Houe Beal Teme Dats Coshgm stan Alaani mau ID Mamape nent Diane Dume Daca Langargt Xermork Coonec unay Figure 29 C1013 Alteecegy Power Sruen Ine 3 Enter the IP Address Netmask Gateway IP Primary DNS Server and Secondary DNS Server Refer to you local network administrator for these settings 4 Press Update APsytems ECU 3 V3 8 Installation User Manual 25 REMOTE ECU MANAGEMENT REMOTE ECU MANAGEMENT The ECU has been design with remote connect functionality You can access this remote functionality through the APsystems Energy Monitoring amp Analysis EMA website using your installer login credentials Changes made remotely through the EMA do not take affect until the ECU s next reporting cycle The ECU must first be installed with verified Power Line Communication PLC and Internet connectivity The ECU remote functionality allows you to do the following e Set Time Zones e Manage Inverter UIDs There are additional ECU functions available but the instructions are not outlined in this document If you need to access one of the following features please contact APsystems Technical Support at 844 666 7034 or support APsystems com e Change system parameters e Turn the inverters ON and OFF e Reset GFDI e Reset Power Settings NOTE This section of the documentation assumes you have a working knowledge of the A
11. e inverter UIDs Until the inverter UIDs are loaded the ECU will not be able to collect data from the inverters Update Inverter UID list e If an inverter s is added or swapped for a new unit then the ECU s programmed list of inverters will need to be updated APsytems ECU 3 V3 8 Installation User Manual 25 REMOTE ECU MANAGEMENT Setting the ECU Time Zone 1 Select the ECU SETTING tab The ECU Configuration page is displayed Time Zone Pull Down Field User Account ECU Configuration Time Zone inverter Links Time Zone Configuration The ECU time zone is the location your cust ner s ECU placed Set the appropriate one for your customers ECUID 203000011188 Time Zone US Pacific 2 Using the Time Zone pull down field select the appropriate time zone 3 Press Send APsytems ECU 3 V3 8 Installation User Manual 26 REMOTE ECU MANAGEMENT Managing Inverter UIDs and Updating the Inverter UID List 1 Select the ECU SETTING tab The ECU Configuration page is displayed Inverter Links 2 Select the Inverter Links tab eo Settings Sign out e4 APS INSTALLER PORTAL gt 4 a E ENERGY MONITORING amp ANALYSIS CUSTOMER REGISTRATION FAQ User Account INSTALLER ECU SETTING ECU Configuration Time Zone inverter Links 7 Figure 33 Time Zone Configuration The ECU time zone is the ication your customer s ECU placed Set the appropriate one for your customers
12. h part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation This Class B digital apparatus complies with Canadian ICES 003 APsytems ECU 3 V3 8 Installation User Manual 29
13. he ECU has the following menu structure displayed on LED screen Signal Level Shut Down Press and hold the MENU Button releasing the button to gain access to the functionality of each menu item Exit Menu Returns the ECU to the normal operating screen see Operating Interface Pg 9 APsytems ECU 3 V3 8 Installation User Manual 10 USING THE ECU MENU BUTTON Signal Level The PLC signal strength measured from 1 5 with higher number being stronger signal strength NOTE Signal Level will not be displayed if there is no PLC The Signal Level screen Figure 15 Status Reports both the number of inverters that should be reporting into the ECU Total and the number that are actually reporting Connected These numbers should match The Status screen Figure 16 Shutdown Shuts down the entire system The Shutdown screen Figure 17 NOTE Leaving the MENU Button untouched for one 1 minute returns the ECU to the normal operating screen see Operating Interface Pg 9 APsytems ECU 3 V3 8 Installation User Manual 11 LOCAL NETWORK INTERFACE LOCAL NETWORK INTERFACE The ECU can be configured and its data reviewed by connecting a computer to the ECU via the Local Area Network LAN or by connecting directly to the ECU via its Ethernet port Connecting to the ECU via the LAN 1 Make sure both your computer and the ECU are correctly connected by the LAN 2 Using a standard web browser on your computer
14. ke sure you have the following things taken care of before attempting to install the ECU e A dedicated standard AC electrical outlet located electrically as close to the array as 1s possible e A broadband Internet connection is available for your use e A broadband router with either a CAT5 Ethernet or wireless router is available for your use e A laptop with a web browser to view the APsystems EMA online monitoring application e A pre programmed ECU see pg 20 Selecting an Installation Location for the ECU e A location that is electrically as close to the array as is possible preferably a dedicated outlet installed directly to the solar system sub panel e The ECU is NOT rated for outdoor use so if installing outdoors near a junction box or breaker panel making sure that you enclose it in an appropriate weather proof NEMA electrical box Using Electrical Mounting Din Rail 1 Loosen the two 2 M3 mounting screws on the back of the ECU and rotate the two 2 rail holders so that the holders are above the ECU Holder Figure 2 M3 Screw Figure 3 APsytems ECU 3 V3 8 Installation User Manual 4 HARDWARE INSTALLATION Using Wall Mount When mounting the ECU to a wall make sure to select a cool dry indoor location 1 Depending on the wall surface you are mounting the ECU to use either two 2 8 drywall screws or wall anchors installed 130 mm apart The drywall screws and
15. l Level ae co CIMT Altencrey Power Syeten Imz ECU ID This is a unique number that identifies this specific ECU Lifetime Generation Amount of power this system has generated during its lifetime Last System Power Amount of power the system was generating during its last polling cycle Generation of Current Day Amount of power that has been generated during the most current day Last connection to Website The last time the ECU checked into the central APsystems EMA database Number of Inverters Number of inverters that have programmed into the ECU Last Number of Inverters Online Number of inverters that are checking in with the ECU Current Software Version Version of software firmware APsytems ECU 3 V3 8 Installation User Manual 15 LOCAL NETWORK INTERFACE Database Size Amount of data currently being stored on the ECU Current Timezone Time zone that has been programmed into the ECU ECU Mac Address The computer machine address of the ECU Signal Level The PLC signal strength measured from 1 5 with higher number being stronger signal strength NOTE Signal Level will not be displayed if there is no PLC Viewing the Real Time Data 1 Select Real Time Data at the top of page The Real Time Data screen is displayed 04 APs Eats Che Hesar Real Time Doa Con pannon Admuusi inon 103000067101 A Moime P av Pee P sanoa a orm mv se msomo SOOTS A ote aes EE
16. nagement page 1s displayed NOTE The Enter Inverter ID window field will be blank if you have not yet entered any of the inverter UIDs W4 APs stilt Hauze Beal Tant Dats Comhgus stoos Adista shay ID Mumampemmens Dar Isac Timeenome Langaeg Acemok Consect uty Figure 26 COU Aleosrgy Poar Syuan in 3 Enter each 12 digit inverter UID followed by pressing the Enter Return key providing a line break between each entry 4 Once all the UID have been entered press OK APsytems ECU 3 V3 8 Installation User Manual 20 LOCAL NETWORK INTERFACE Adding Additional Inverter UIDs 1 Select Administration at the top of the page 2 Select ID Management The UID Management page with the existing inverter UIDs is displayed P4 aps be Figure 27 Ces COOLS Aleaergy Powers Swuees ia 3 Scroll down to the end of the existing list 4 Enter the new UID 5 Press OK Deleting an Existing Inverter UID 1 Select Administration at the top of the page 2 Select ID Management The UID Management page with the existing inverter UIDs is displayed 3 Highlight the UIDs to be deleted from the list A Press OK NOTE Pressing Clear ID deletes ALL of the inverter UIDs from the list NOTE Combine the above two 2 steps when swapping out an inverter Add the new inverter and Delete the old one Remember to follow up with the same process on the APsystems EMA
17. ork port on the bottom of the ECU 2 Connect the CAT5 cable into the wifi extender C Figure 6 Figure 7 APsytems ECU 3 V3 8 Installation User Manual HARDWARE INSTALLATION Using a PLC bridge NOTE A PLC bridge uses the power line to communicate and requires both a send and receive unit 1 Make sure the CAT5 cable is connected to the network port on the bottom of the ECU 2 Connect the CAT5 cable into the send unit of the PLC bridge 3 Connect a CAT5 cable from the receive unit of the PLC bridge into a spare port on the broadband router refer to bridge users manual for specific operating instructions Figure 8 Power Up ECU 1 Make sure the power cable is correctly connected to the power connection port on the bottom of the ECU 2 Plug the power cable into a dedicated standard AC electrical outlet WARNING Make sure to use a dedicated outlet for the ECU Do NOT plug any other devices into the same outlet as the ECU WARNING Do NOT plug the ECU into a power strip surge protector or uninterruptable power supply UPS The surge suppression and or filtering on these sorts of devices will substantially diminish PLC performance APsytems ECU 3 V3 8 Installation User Manual 7 ECU INITIALIZATION SEQUENCE ECU INITIALIZATION SEQUENCE Once power is supplied to the ECU it automatically steps through a series of initialization screens on its LED display
18. ser manual for specifics If however the LED displays 60 190 131 228 the ECU router connection has not been successful in which case you ll need to check all of the cabling connections and reboot the ECU by removing the power cable for a few seconds and reconnecting EMA Communication A Web indicates that the ECU is communicating with the APsystems EMA via the Internet Web is an indication that there is a problem and the ECU is not communicating with the APsystems EMA Current Power Production What the solar array is producing currently Gn Watts Lifetime Production The lifetime power output of the system in kWh Reporting Inverters The number of inverters reporting into the ECU If the number is followed by an then the number of reporting inverters does not match the number of UIDs that have been programmed into the ECU see Managing Inverter UIDs pg 20 NOTE The inverter UIDs must be programmed into the ECU for the ECU to recognize the inverters The ECU will NOT auto sense the inverters see Managing Inverter UIDs pg 20 APsytems ECU 3 V3 8 Installation User Manual 9 USING THE ECU MENU BUTTON USING THE ECU MENU BUTTON You can access the ECU s menu by pressing and holding the Menu Button on the side of the ECU for 2 seconds NOTE The Menu Button will only cycle through its menu selections once the ECU has been successfully initialized MENU Button Figure 13 T
19. tion gateway for our microinverters The unit collects module performance data from each individual microinverter and transfers this information to an Internet database in real time requiring only a single data and power cable Through the APsystems Monitor software the APsystems Communicator gives you precise analysis of each microinverter and module in your solar installation from any web connected device The APsystems Communicator s integrated http webserver offers the simplest and most flexible network integration of any data logger on the market The user friendly browser based interface lets you access your solar array in seconds Features e Collects individual module and microinverter statistics e Communicates in real time e Requires no additional wiring The APsystems Microinverter is used in utility interactive grid tied applications and is made up of three key elements e APsystems Microinverter e APsystems Energy Communication Unit ECU e APsystems Energy Monitor and Analysis EMA web based monitoring and analysis system B a Liam am am am ai X Moter Branch J box p i a ies ez icro inverter YELLOW L1 BLUE L2 WHITE NEUTRAL GREEN GROUND Figure 1 00 AC Distribution Panel Diagram of a typical residential system APsytems ECU 3 V3 8 Installation User Manual 3 HARDWARE INSTALLATION HARDWARE INSTALLATION Preparation Ma
20. wall anchors are NOT included in the ECU kit 2 Align and slide the ECU onto the mounting screws 130mm Figure 4 Best Practice Install and connect the ECU to the Internet see below instructions while the rest of the array is being installed Doing so allows the ECU to automatically update its internal software while the rest of the physical installation is underway The ECU will then communicate with the inverters when the installation is complete and the array is energized Cable Connections Power Connection Port Network Port Figure 5 mw fy Ren cries ee eens ene a 1 Connect the supplied power cable to the power connection port on the bottom of the ECU 2 Connect the supplied CAT5 cable to the network port on the bottom of the ECU APsytems ECU 3 V3 8 Installation User Manual 5 HARDWARE INSTALLATION Internet Connection There are two different approaches to connecting the ECU to the Internet e Direct CAT5 network connection to a broadband router e Wireless connection to a wireless broadband router NOTE The ECU is NOT a wireless device and requires a wifi extender or bridge to make the connection to a wireless router Direct CAT5 Connection 1 Make sure the CAT5 cable is connected to the network port on the bottom of the ECU 2 Connect the CAT5 cable into a spare port on the broadband router Wireless Connection Using a wifi extender 1 Make sure the CAT5 cable is connected to the netw
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