Edge Control Node 7000 Series Hardware and Installation Guide 078-0455-01A
Echelon, LONWORKS, Neuron, 3120, and the Echelon logo are trademarks of Echelon Corporation registered in the United States and other countries. Other brand and product names are trademarks or registered trademarks of their respective holders.
Welcome To improve both reliability and efficiency, national and regional power distribution grids must become smarter. They must also be able to manage themselves using intelligent distributed control and be able to communicate with any device, over any network or protocol, to optimize grid operations and anticipate problems before they occur. The Echelon® Edge Control Node (ECN) 7000 Series of open and extensible hardware products enable power distribution grids to become smarter.
connecting the ECN hardware, installing the COS software, configuring an ECN, creating and deploying a custom COS app, creating an ECN component, and deploying that component to multiple ECNs. • COS User's Guide (078-0456-01A). This document describes how to configure the COS software and use its applications to manage grid control networks. • COS App Developer’s Guide (078-0453-01A). This guide describes how to create and use apps on your ECN, and how to localize the language of the COS Web interface.
Table 1. RF Transmitter Options FCC ID Number Model Numbers Radio Transmitter Options IZP70101-R000 TBD No radio transmitters IZP70101-R001 TBD Dual Band CDMA2000/EV-DO cellular data communications module operating in the 800 MHz cellular band and 1800/1900 MHz PCS band IZP70101-R002 TBD Dual band (2.4 and 5.
Table of Contents Welcome ......................................................................................................... iii Audience ........................................................................................................ iii Related Documentation ................................................................................ iii FCC Notice .................................................................................................... iv RF Statements......................
Installation Location .................................................................................... 29 Preparing for Installation ............................................................................ 29 Performing the Installation ......................................................................... 29 Attach Pole Mounting Bracket ............................................................. 30 Attach ECN to Pole Mounting Bracket ................................................
1 Introduction This chapter introduces the ECN 7000 Series of products, and describes the ECN hardware architecture.
Overview of the ECN 7000 Series Residential and commercial energy customers are increasingly focused energy efficiency and reliability, while also reducing the environmental impact of electricity use.
The cover of the ECN 7650 is secured with one-way screws, which virtually eliminates unauthorized access. When the ECN 7650 is pad mounted, you secure the power and network connections inside a metal housing with a padlock. The ECN 7650 is also rugged and sturdy enough to allow a person (for example, a utility working gaffing a utility pole) to step on it.
MV/LV CT Cover Switch Digital Input Mains Power ECN ENCLOSURE Analog/Digital Input Measurement Processor Internal Sensors Power Supply Optional Backup Battery Main Processor External Communications Interfaces USB / Serial Ethernet Modem + Antenna PLC Figure 1. ECN Hardware Architecture The ECN main processor manages the other hardware components within the ECN and runs the COS system software and related applications.
Figure 2. The ECN Inner Card Cage Figure 3 on page 6 shows the ECN removed from its enclosure and with the inner card cage removed. The figure highlights the locations of the expansion slots. Also visible are the ECN system slots and the main board. The antenna holders are more visible as well.
Figure 3. ECN Expansion Slots The expansion slots allow you to customize the functionality provided by the ECN to suit your application’s needs. Typically, an expansion card provides additional communications interfaces for the ECN, but it can also provide additional software applications to complement the COS system software. Main Board The ECN main board includes the power supply back end, USB hubs with power control, and high bandwidth interconnects for the system cards and expansion cards.
Figure 4 shows the relationships between the main processor and the backplane. Some of the functionality is provided by system cards, and the rest is provided by expansion cards. Main Processor USB Hub EV-DO Modem Expansion Card Expansion Card Ethernet Free USB Port Broadband Ethernet USB Hub USB/Serial Expansion Card USB/Serial USB Hub USB/Serial USB/Serial PLC Transceiver PLC Transceiver Battery Mgmt Free USB Port Figure 4.
soft-start mechanism for the ECN system processor and expansion cards, and prevents heavy loading on the power supply while line voltages are settling. When the power supply is stable, reset is released and a “wake-up” interrupt is issued to the measurement processor, which has been operating in watch mode while power was off. During initialization, the measurement processor starts to monitor the AC line voltage and begins its other measurement tasks.
convertor, whereas each expansion slot has its own convertor. Thus, the expansion cards can be designed to use a different voltage value, as needed. See the Edge Control Node 7000 Series Expansion Card Developer’s Guide for more information. The ECN main system processor can control power management for each of the USB hubs and expansion slots. When the main processor is held in reset (because of a watchdog or brown-out event), the expansion slots are automatically turned off.
Hardware Watchdog I/O Toggle System Health Monitor Measurement Processor Keep Alive System Health Monitor Main Processor Peripheral Monitor Reset USB Power/Data Reset Serial USB Power/Data USB Hub Peripheral Figure 5. Watchdog Functions System Watchdog and Reset A dedicated processor provides hardware watchdog functionality for the entire ECN system. The watchdog has master reset control over both the ECN main system processor and the measurement processor.
processor can monitor the health of each of the expansion cards through the USB interface. Internal Sensors The ECN includes internal sensors to detect removal of the external cover, change in the title angle of the unit, internal temperature, secondary voltage, and current. Enclosure Cover Removal Sensor The ECN includes a reed switch that is mounted in the enclosure cover for sensing removal of the enclosure cover.
processor processes the signals in real time. If you connect secondary current transformers (CTs), the measurement processor can calculate VRMS and monitor power quality events (such as sag, swell, line frequency, harmonic content, and energy). The voltage measurement circuitry can be calibrated at the factory to provide increased accuracy. With calibration it is possible to achieve better than 2% accuracy for VRMS readings. The secondary voltage sensor is available as a factory option.
processor is powered from a non-replaceable 3 VDC lithium battery located on the processor card. Tamper functions are also maintained during this period. This battery provides at least 10 years of functionality for the real-time clock. If you plan to store the ECN for significant periods of time, the measurement processor can be placed in stop mode to further extend the effective life (up to 20 years).
RF Options: Wi-Fi and EV-DO (FCC ID IZP70101-R003) Main Processor Power Line Ethernet Wi-Fi USB EV-DO Serial Multi-Utility Meter Digital GPS Serial Multi-Utility Meter Digital GPS Serial Multi-Utility Meter Digital GPS Serial Multi-Utility Meter Digital GPS RF Options: Wi-Fi Only (FCC ID IZP70101-R002) Main Processor Power Line Ethernet Wi-Fi USB RF Options: EV-DO Only (FCC ID IZP70101-R001) Main Processor Power Line Ethernet EV-DO USB RF Options: None (FCC ID IZP70101-R000)
within the COS software platform. The C Band is typically used for commercial and residential applications, such as those that use LONWORKS communications channels.
The ECN external connection panel includes two 8 Position 8 Contact (8P8C; also known as RJ45) modular connectors for connecting to the Ethernet network. You can use standard ANSI/TIA/EIA-568-A Category 5 cable in either the T568A or T568B wiring configuration. These Ethernet connectors have built-in transformers on the ECN main system board. The external connector is included with the External Connections + Serial option.
an Itron® Energy Gateway with an Itron Encoder-Receiver-Transmitter (ERT®) module. The end points for such multi-utility meters typically transmit their register readings periodically (for example, every 8 seconds for a Badger meter), so the reader must be able to capture these readings and transmit them to the ECN, which forwards the information to the back end software.
Backup Battery To provide power to the ECN unit during extended power outages, the ECN can optionally be fitted with a backup battery. The ECN enclosure includes a separate compartment for the battery module. Within this compartment, a blindmate electrical connector allows easy installation for the battery module. This separate compartment is weather tight and provides shielding from sensitive electronics and radios. Figure 7 shows the battery pack, after it is removed from the ECN.
2 Installing Components and Troubleshooting This chapter describes how to install components in an ECN unit before field deployment and how to perform basic troubleshooting for a unit returned from the field.
Installing Components Because the ECN’s cover is not designed to be removed in the field (the cover is secured with one-way screws), you generally cannot perform in-field service for an ECN. If an ECN becomes non-operational, you should replace it in the field with a similarly equipped model to maintain operational service for your customers; see Chapter 5, Field Replacement for an ECN 7000 Series Device, on page 49. You can return the non-operational ECN to your service center for maintenance.
To remove the card cage, remove the screws at the four corners of the card cage, as shown in Figure 9. Figure 9. Top View of ECN with Cover Removed Removing RF Shields Prior to installing an expansion card in expansion slots 3, 4, or 5, you must remove the factory-installed RF shielding for these slots. This shielding protects the rest of the ECN electronics from unintended emissions from the wireless or cellular modems installed in these slots.
Figure 10. RF Shielding for Expansion Slots 3, 4, and 5 Installing an Expansion Card The ECN main board includes two types of slots: system slots and expansion slots. System slots contain system cards that are installed in the factory and provide basic or pre-installed optional functionality for the ECN. Expansion slots contain expansion cards that are generally installed before field deployment (although some expansion cards can be factory installed) and provide additional functionality for the ECN.
installation. After a card is installed, you must screw the card retainer back in place to prevent the card from becoming dislodged during transportation. If the expansion card requires electrical connections to external devices, those electrical connections must be positioned as close as possible to the edge of the card facing the external connection plate. Connection between the card and the IP66 connector on the ECN external connection panel must use a short cable.
Make antenna connections using a suitable coaxial cable, and exit the shielding as recommended. Routing for antenna cables must follow the requirements described in your compliance approvals. The antennas must be installed as directed using the mounting points provided. Installing an Antenna You can use the internal antenna holders for your own PCB antennas. Figure 11 shows the various antenna holders attached to the ECN inner card cage.
Troubleshooting The ECN is designed to perform without malfunctioning for a period of at least 10 years in harsh environmental conditions. In addition, the ECN outer enclosure is designed to provide IP66 protection, as defined by International Electrotechnical Commission (IEC) standard 60529. All Echelon supplied connectors are IP67 rated, and each connector has a cap designed to maintain its long-term reliability.
26 Installing Components and Troubleshooting
3 Pole Mount Installation This chapter describes how to install the ECN on a utility pole.
Introduction You can install an ECN on any standard utility pole, in either the supply space or the common area. The ECN provides a carrying loop for a carabiner hook to allow you to easily carry the ECN while climbing the pole. The ECN is also small and light enough that you can carry it while working from a boom lift. After installation, the ECN can withstand a 115 kg (250 lb) load, for example, of a utility worker stepping on the unit.
o White: Neutral The ECN does not use the blue connector (phase 2). • The end of the cable that connects to the ECN input power connector is fitted. The other end of the cable is not fitted. Installation Location Typically, you install the ECN on a utility pole either in the supply space (near the service distribution transformer) or in the common area (3-½ to 4-½ meters or 12 to 15 feet above ground level).
4. Connect the ECN to power and to the network 5. Complete the installation Each of these tasks is described in the following sections. Attach Pole Mounting Bracket You connect the ECN to the utility pole using the hole that you drilled into the pole to prepare for installation; see Preparing for Installation on page 29. Place the bracket against the pole, insert the support bolt, and secure the bolt with a washer and nut, as shown in Figure 12.
Figure 13. Attach the ECN to the Pole Mounting Bracket Secure ECN to Pole Mounting Bracket To secure the ECN to the Pole Mounting Bracket, secure the two captive ¼-20 screws to the bottom of the ECN to attach it to the Pole Mounting Bracket. These screws are already connected to the ECN, and are designed not to make contact with the pole. Figure 14 on page 32 shows a front view of the ECN attached to the Pole Mounting Bracket, with the bottom screws visible.
Figure 14. Secure the ECN to the Pole Mounting Bracket Connect the ECN to Power and the Network You make the connections to power and to the communications network at the bottom of the ECN. All Echelon supplied connectors are IP67 rated. Each connector has a cap designed to maintain its long-term reliability. Figure 15 on page 33 shows the bottom of a typical ECN, before installation. You can connect the ECN to either low voltage, or with the CT option, medium voltage.
Figure 15. Connect the ECN to Power and the Network Complete the Installation After the installation is complete, perform the following tasks: 1. Inspect the connection of the ECN to the Pole Mounting Bracket. 2. Inspect the connection of the Pole Mounting Bracket to the utility pole. 3. Inspect the cabling connections to the ECN. The completed installation should look similar to the views depicted in Figure 13 on page 31. Note that the figure does not show the cabling connections to the ECN.
Table 3.
4 Pad Mount Installation This chapter describes how to install the ECN on a service distribution transformer that is mounted on a transformer pad.
Introduction You can install an ECN on the same transformer pad as a service distribution transformer, and secure it to the transformer without drilling holes into or otherwise damaging the transformer housing. After installation, the ECN is resistant to manual removal, and none of the electrical or communications network connections can be accessed by unauthorized personnel. The installation includes a bracket that you attach to the transformer housing and transformer pad.
Installation Location For optimal antenna performance, you should place the ECN as high on the distribution transformer as possible. However, most installations will require that the top of the ECN after installation extend no higher than the top of the transformer. A typical residential transformer measures between 46 cm (18 inches) and 74 cm (29 inches) in height.
4. Seal the top of the conduit inside the transformer cover with sealing putty or foam. This seal ensures that water and foreign objects cannot enter the transformer housing. 5. Seal the end of the conduit that is external to the transformer cover with sealing putty or foam. After the conduit and cabling are ready, you can install the ECN. See the next section, Performing the Installation. Performing the Installation To install the ECN using the pad mount method, perform the following tasks: 1.
Figure 16. Extend the Pad Mounting Bracket Attach Pad Mounting Bracket to Lifting Nut Because it is generally inadvisable to drill holes into the transformer housing, you use one of the 1.6 cm (5/8 inch) welded lifting nuts (inside the transformer cabinet and exposed through a hole in the transformer casing) as the installation point. Locate one of the transformer’s lifting nuts.
Figure 17. Attach the Mounting Bracket to the Transformer’s Lifting Nut Attach Conduit Housing to Pad Mounting Bracket To protect the electrical and network connections to the ECN, the Pad Mounting Bracket includes a Conduit Housing. The Conduit Housing is approximately 13 cm (5 inches) high and 30 cm (12 inches) wide. Attach the Conduit Housing to the bottom of the upper extension of the Pad Mounting Bracket, as shown in Figure 18 on page 41. You can perform this step prior to field installation.
Figure 18. Attach the Conduit Housing to the Pad Mounting Bracket Insert Conduit Thread into Conduit Housing To protect the electrical and network cabling as it enters the Pad Mounting Bracket Conduit Housing, insert a Conduit Thread unit into one of the available holes in the bottom of the Conduit Housing. The Conduit Thread should accommodate the locking nut for the conduit and the radius of one or more cable bundles.
Figure 19. Insert a Conduit Thread into the Conduit Housing Attach ECN to Pad Mounting Bracket After the Pad Mounting Bracket is securely attached to the transformer, and the Conduit Housing is securely in place, you can attach the ECN to the Pad Mounting Bracket. The top of the back side of the ECN includes two tabs that slide into the top of the Pad Mounting Bracket. Figure 20 on page 43 shows the ECN attached to the Pad Mounting Bracket.
Figure 20. Attach the ECN to the Pad Mounting Bracket Secure ECN to Pad Mounting Bracket To secure the ECN to the Pad Mounting Bracket, secure the two captive ¼-20 screws to the bottom of the ECN to attach it to the Pad Mounting Bracket. These screws are designed not to make contact with the transformer. Figure 21 on page 44 shows a front view of the ECN attached to the Pad Mounting Bracket, with the bottom screws visible.
Figure 21. Secure the ECN to the Pad Mounting Bracket Connect the ECN to Power and the Network You make the connections to power and to the communications network at the bottom of the ECN, which is inside the Conduit Housing. All Echelon supplied connectors are IP67 rated. Each connector has a cap designed to maintain its long-term reliability. Figure 22 on page 45 shows the bottom of a typical ECN, before installation. You can connect the ECN to either low voltage, or with the CT option, medium voltage.
To make the power connection, remove the cap, insert the power cable, and twist the cable ¼ turn to lock it in place. Figure 22. Connect the ECN to Power and the Network Because the transformer’s lifting nut is not necessarily centered vertically with where you placed the 1.9 cm or 3.2 cm (¾” or 1-1/4”) flexible conduit relative to the transformer pad, ensure that the flexible conduit is long enough to reach both the Conduit Housing and the connections on the ECN.
Figure 23. Close and Lock the Conduit Housing Complete the Installation After the installation is complete, perform the following tasks: 1. Inspect the connection of the ECN to the Pad Mounting Bracket. 2. Inspect the connection of the Pad Mounting Bracket to the transformer. 3. Inspect the cabling connections to the ECN. 4. Inspect the transformer pad. The completed installation should look similar to the views depicted in Figure 24 and Figure 25 on page 47.
Figure 24. Complete ECN Installation, Viewed from the Left Figure 25.
Verifying Successful Installation Because the ECN has no external lights or displays, it uses an internal audio buzzer to provide indications of important installation-related states. The buzzer’s audio frequency is 2.4 kHz (as a 1/2 duty cycle square wave) and outputs 85 to 92 dBA of sound pressure, 4 which should be audible from at least 10 m (30 ft). Table 4 lists the sound patterns for the audio indicator. The audio indicator outputs its audio indicator patterns only during ECN startup. Table 4.
5 Field Replacement for an ECN 7000 Series Device This chapter describes how to replace an ECN or an ECN’s battery pack after the ECN has been installed in the field.
Overview The ECN 7000 Series of products is designed to allow you to easily replace an ECN unit in the field after installation. For ECN units with the backup battery option, you can also easily replace the battery in the field. Because an ECN is typically installed in a location that exposes it to weather and other hazards, you might need to replace ECN units from time to time.
Replacing a Pad-Mounted ECN Important: Before replacing an ECN in the field, visually inspect the unit and its surroundings to ensure that the unit is not damaged and that it is safe to handle. You do not need to reinstall the Pad Mounting Bracket to replace an ECN unit. To remove a pad-mounted ECN: 1. If possible, use the COS system software to shut down the unit remotely, before beginning field replacement. 2. Unlock the Conduit Housing and open the Conduit Housing door. 3.
Figure 26. ECN Battery Compartment Location Required tools for replacing the battery pack: • A standard Phillips screwdriver, Point Size 2 • The battery replacement kit, which includes the battery pack and four sealing screws To remove the battery pack: 1. Loosen and remove the four screws at the edges of the battery compartment. 2. The battery pack is held in place by a restraining tab, as shown in Figure 27 on page 53. Gently press the tab to release the battery pack. 3.
Figure 27. Battery Pack Restraining Tab To replace the battery pack: 1. Insert the battery pack into the battery compartment. The restraining tab must be oriented toward the ECN cover. The restraining tab will click into place. 2. Ensure that the battery pack’s gasket makes a good seal with the battery compartment. 3. Insert and tighten the four sealing screws. Tighten the screws in a diagonal “X” pattern (alternating top-left, bottom-right, top-right, bottomleft). Tighten the screws to no more than 9.
A ECN 7000 Series Specifications This appendix lists the specifications for the ECN 7000 Series of products.
General Specifications Table 5 summarizes the general specifications for ECN 7650 devices. Table 5.
Category Rating Clock Real-time clock accurate to better than ±1 minute per month; corrected by System Software. Maintained by backup battery. Environmental Rating Specifications Table 6 summarizes the environmental rating specifications for ECN 7650 devices. Table 6. Environmental Rating Specifications Category Rating –40 °C to +70 °C (–40 °F to +158 °F) Operating Temperature Range Certain options (for example, radios) could have additional limits. ANSI C12.1 2008 4.7.3.
Table 7. Mechanical Specifications Category Rating General Mechanical Requirements IEC 60068-2-11 Mechanical Tests: Mechanical Shock ANSI C12.1 2008 4.7.3.18 in accordance with IEC 60068-227 Transportation Drop ANSI C12.1 2008 4.7.3.19 in accordance with ISTA procedure 1A Mechanical Vibration ANSI C12.1 2008 4.7.3.20 in accordance with IEC 60068-26 As per ANSI C12.1 2008 As per ANSI C12.1 2008 Transportation Vibration ANSI C12.1 2008 4.7.3.
Category Rating High Voltage Surge Effect of Current Surge in Ground Conductor ANSI C12.1 2008 4.7.3.3.1 100kHz Ring Wave in accordance with ANSI C62.41 (Category B) ANSI C12.1 2008 4.7.3.3.2 Combination Wave in accordance with ANSI C62.41 (Category B) ANSI C12.1 2008 4.7.3.7 Safety Specifications Table 9 summarizes the safety specifications for ECN 7650 devices. Table 9.
Immunity to Conducted Disturbances: 150 kHz to 80 MHz IEC 62052-11 (7.5.5), IEC 61000-4-6: 10 Vrms Surge Immunity IEC 62052-11 (7.5.
Category Rating ISO/IEC 14908-2 Twisted Pair Communication Local Networks (optional) Ethernet High-power 2.4/5GHz IEEE 802.11b/g/n access point and neighborhood-area intercommunication network (supports IEEE 802.11i and IEEE 802.11s (draft)) External Connection Specifications Table 12 summarizes the external connection specifications for ECN 7650 devices. Table 12.
Category Rating Maximum card dimensions: 104 mm x 85 mm (4.1 in x 3.3 in). Expansion Card Type B The expansion slot includes card guides, USB data and power interconnect with +1.8 VDC to +12 VDC variable voltage input, up to 3 W maximum power dissipation. Maximum card dimensions: 129 mm x 85 mm (5.1 in x 3.3 in). The expansion slot includes USB data and power interconnect with +1.8 VDC to +12 VDC variable voltage input, up to 5 W maximum power dissipation.
B Safety and High-Voltage Warnings This appendix provides the safety and high-voltage warnings for the ECN 7000 Series of products.
Safety and High-Voltage Warning Safety and High Voltage Warning Ensure that the AC input power is turned OFF before removing the front cover, handling the input power wiring, or connecting any input power cabling to the ECN 7650 device. The ECN is not equipped with a power disconnect device. When the ECN is installed and mounted, the installer must provide a means to safely remove power and install a circuit breaker with a maximum rating of 16 A.
alimentation de manière sécurisée et d’installer un interrupteur externe d’un valeur maximale de 16 A. Le bloc terminal haut tension a un couvercle plastique pour protéger le bornier à vis recevant la puissance. Ce couvercle DOIT être remplacé correctement à son emplacement d’origine après les câbles sont vissés et avant que la puissance ne soit activée. Il ne faut JAMAIS connecter l’ECN à une tension d’alimentation hors de la plage 100 to 240 VAC, -10% to +20%, 50/60 Hz.
Avvertenza sulla Sicurezza e sull’Alta Tensione Assicurarsi che la rete elettrica sia SPENTA prima di rimuovere il coperchio frontale, maneggiare i cavi di alimentazione, o connettere qualsiasi cavo al dispositivo ECN 7650. Il ECN non viene fornito con un dispositivo di disconnessione dell’alimentazione.
线连接电源之前被激活。 不要在任何情况下联络的范围以外的100至240VAC，10％至+20％，50/60Hz的主电源电压的ECN的。 任何情况下做不连接到调制解调器的ECN的要求的工作电压不14VDC（300mA的最大值） 。 安全性と高電圧警告 確認は、AC入力電源は、入力電源配線を取り扱う場合や、電子証券取引ネットワー ク7650デバイスにケーブル接続、任意の入力電源を接続して、フロントカバーを取 り外す前にオフになっていること。 ECNは、装置の電源を切断が装備されていない。 ECNがインストールされている場合、マウント、インストーラは安全に電源を削除し て、16Aの最大定格を持つ回路ブレーカをインストールする手段を提供する必要があ ります。 高電圧端子台は、高電圧入力を接続するためのネジ留め式端子を保護するプラスチ ック製のカバーを持っています。電源コードが接続された後、電源がアクティブに なる前にこのカバーしなければ置き換えられます。 どのような状況は、240VACの範囲100、10％〜+20％、50/60Hzの外の電源電圧にECNを登録の下にしないでください。 その必要な動作電圧（300ミリア
Avertissement Sécurité L'ECN utilise trois Littelfuse 215SP Series, 250VAC Time-Lag Fuse (0215063MXESPP) fusibles (F1, F2, et F3), un pour chaque phase. 6,3A Ampérage. Sicherheitshinweis Die ECN verwendet drei Littelfuse 215SP Series, 250VAC Time-Lag Fuse (0215063MXESPP) Sicherungen (F1, F2, und F3), eine für jede Phase. Amperezahl 6,3A. Säkerhetsvarning ECN använder tre Littelfuse 215SP Series, 250VAC Time-Lag Fuse (0215063MXESPP) säkringar (F1, F2, och F3), en för varje fas. Strömstyrka 6,3A.
C ESD and Battery Warnings This appendix provides the electrostatic discharge (ESD) and battery warnings for the ECN 7000 Series of products. The battery is end-user serviceable, and the ECN device will continue to operate even if the battery fails.
ESD Warning Electrostatic Discharge Warning This product contains components which are sensitive to static electricity. Before installing or removing the serial cable, touch earth ground with your hand to discharge any static electricity which may have accumulated. Aviso de descarga electrostática Este producto contiene componentes que son sensibles a la electricidad estática.
убедитесь, что вы нажмете контакта с землей, чтобы заряд статического электричества, которые могут накапливаться. 静电放电警告 本产品含有敏感元件对静电。在安装或拆卸串行电缆，请确保您点击一个接触到地面 的静电放电可能积累。 静電放電警告 この製品は、静電気に敏感なコンポーネントが含まれています。インストールまた はシリアルケーブルを取り外す前に、放電し蓄積している可能性のある静電気を接 地して連絡先をタップしてください。 Battery Warning Battery Warning The ECN contains a backup battery for the real-time clock. There is a risk of explosion if this battery is replaced with an incorrect type.
Batterivarning ECN har ett backup-batteri. Om batteriet byts ut mot ett batteri av fel typ föreligger explosionsrisk. Se till att batteriet förstörs enligt tillverkarens anvisningar. Avvertenza sulla Batteria Il ECN contiene al suo interno una batteria di backup. Se la batteria viene sostituita con un tipo non conforme, ci potrebbe essere pericolo di esplosione. Si prega di eliminare le batterie usate in accordo con quanto specificato nelle istruzioni del costruttore.
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