B&B Electronics EIR505-xx User Manual Download Page 63

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Manual Documentation Number: EIR505-xx_5107m

B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104 – www.bb-elec.com

B&B Electronics – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445 – www.bb-europe.com

Quality of service

port based

Tag based

IPv4 Type of service

X-Ring

300 ms Recovery Time

VLAN

Port based VLAN and IEEE802.1Q Tag VLAN.

Both port based and Tag based VLAN groups

(up to 64).

Spanning tree

IEEE802.1d spanning tree and IEEE802.1w

rapid spanning tree.

IGMP

IGMP v1 and Query mode. Up to 256 groups.

SNTP

Simple Network time protocol

Management IP

security

IP address security to prevent intrusion

Port mirror

TX packet only or both TX and RX packet.

Summary of Contents for EIR505-xx

Page 1: ...O Box 1040 Ottawa IL 61350 USA Phone 815 433 5100 General Fax 815 433 5105 Phone 815 433 5100 General Fax 815 433 5105 Website www bb elec com Sales e mail orders bb elec com Fax 815 433 5109 Technical Support e mail support bb elec com Fax 815 433 5104 European Headquarters B B Electronics Westlink Commercial Park Oranmore Co Galway Ireland Phone 353 91 792444 Fax 353 91 792445 Website www bb eur...

Page 2: ......

Page 3: ...cs Mfg Co Inc 707 Dayton Rd PO Box 1040 Ottawa IL 61350 Ph 815 433 5100 Fax 815 433 5104 www bb elec com B B Electronics Westlink Commercial Park Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 www bb europe com Five Port Managed Industrial Ethernet Switches User Manual ...

Page 4: ...www bb elec com B B Electronics Westlink Commercial Park Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 www bb europe com The contents of this manual are based on the firmware kernel and hardware versions listed below Firmware Version V1 29 Kernel Version V2 05 Hardware Version A5 00 Notice ...

Page 5: ...ccordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of th...

Page 6: ...353 91 792444 Fax 353 91 792445 www bb europe com Content FCC Warning v CE Mark Warning v Introduction 1 Features 1 Package Contents 2 Hardware Description 3 Physical Dimension 3 Front Panel 3 Reset Button 3 Bottom View 4 DIP switch 4 LED Indicators 5 Ports 6 Cabling 8 Wiring the Power Inputs 9 Wiring the Fault Alarm Contact 9 Wiring the Fault Alarm Contact 10 Mounting Installation 11 ...

Page 7: ...4 Fax 353 91 792445 www bb europe com DIN Rail Mounting 11 Wall Mount Plate Mounting 13 Hardware Installation 14 Network Application 15 X Ring Application 15 Coupling Ring Application 16 Dual Homing Application 17 Web Based Management 18 About Web based Management 18 Preparing for Web Management 18 System Login 19 Port status 19 Port status 20 Single Port Information 20 Port Statistics 21 Port Con...

Page 8: ...45 www bb europe com Port based VLAN 25 802 1Q VLAN 27 IP Address 31 SNTP Configuration 32 IP Security 35 RSTP Configuration 36 System Configuration 36 Per Port Configuration 38 X Ring 39 QoS Configuration 41 IGMP 43 Security Manager 45 Configuration Backup 45 TFTP Restore Configuration 45 TFTP Backup Configuration 46 TFTP Update Firmware 46 Factory Default 47 System Reboot 47 Save Configuration 4...

Page 9: ...tronics Mfg Co Inc 707 Dayton Rd PO Box 1040 Ottawa IL 61350 Ph 815 433 5100 Fax 815 433 5104 www bb elec com B B Electronics Westlink Commercial Park Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 www bb europe com Troubles shooting 50 Technical Specification 51 ...

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Page 11: ... have 1 100FX port RJ 45 ports support auto MDI MDI X Store and Forward switching architecture Wide range redundant input power connections DIN rail and panel mount design Easy to configure Web based management IEEE 802 1p class of service and port based Tag based and Type of service priority method Each port supports 4 priority queues Port based VLAN 802 1 Q Tag VLAN IGMP with Query mode for mult...

Page 12: ...ial Park Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 www bb europe com Package Contents 5 Port Managed Industrial Switch One DIN Rail attached to the switch One Panel mount plate and six screws User manual 5 10 100TX with X Ring Web Management User Manual Industrial switch Wall Mount Plate Screws DIN Rail If any item is missing or damaged contact B B Electronics for a replacement ...

Page 13: ...nd Ph 353 91 792444 Fax 353 91 792445 www bb europe com Hardware Description Physical Dimension W x H x D 2 13in x 5 31in x 4 13 in 54mm x 135mm x 105mm Front Panel EIR505 Front Panel Reset Button The reset button is used to restart the reboot the switch or restore it to the factory default configuration Restart Press the button for 2 seconds and release Set to factory default value Press the butt...

Page 14: ...ope com Bottom View The bottom panel of the EIR 505 xx industrial switch consists of one terminal block connector with two DC power inputs and one DC IN power jack Bottom Panel of the industrial switch DIP switch The six position DIP switch is used to configure the relay alarm operation mode and the master ring operation mode The default value for each position is OFF DIP Switch No Status Descript...

Page 15: ... 353 91 792445 www bb europe com ON Enable port Alarm OFF Disable port Alarm 3 ON Enable port Alarm OFF Disable port Alarm 4 ON Enable port Alarm OFF Disable port Alarm 5 ON Enable port Alarm OFF Disable the master ring function 6 ON Enable the switch as the ring master in the X Ring group LED Indicators There are 7 diagnostic LEDs located on the front panel They provide real time status informati...

Page 16: ...r source 1 is available Power 1 Off Power source 1 is not available Green Power source 2 is available Power 2 Off Power source 2 is not available Yellow Power failure or port failure Fault Off Normal Operation Green The port is linked Blinking The port is transmitting or receiving LNK ACT port 5 RJ 45 or Fiber Optic Off No device attached Yellow The port is operating in full duplex mode Blinking D...

Page 17: ...port automatic MDI MDI X operation Straight through cables can be used for all network connections In straight through cable pins 1 2 3 and 6 at one end of the cable are connected straight through to pins 1 2 3 and 6 at the other end of the cable The table below shows the 10BASE T 100BASE TX MDI and MDI X port pin outs Pin MDI X Signal Name MDI Signal Name 1 Receive Data plus RD Transmit Data plus...

Page 18: ...2445 www bb europe com Cross Over Cable Schematic Fiber Port There is one 100Base FX port The fiber port is SC type connector in multi mode 2Km or single mode 30Km Connect the fiber port as described below Cabling Use Category 5 cabling for RJ 45 port connections The cable must be less than 328 ft 100 meters long Use 8 125 or 9 125 um for single mode fiber Distances up to 30 ATTENTION This is a Cl...

Page 19: ... Commercial Park Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 www bb europe com Kilometers are supported Fuse 50 or 62 5 125 um for multi mode fiber cable Distances up to 2Kmare supported Wiring the Power Inputs NOTE Use 12 24 AWG wire V V V V 1 Insert the positive and negative wires into the V and V connector on the terminal block connector 2 Tighten the wire clamp screws ...

Page 20: ...al block connector as shown below Insert the wires and set the Dipswitch to ON When a power source fails or a link fault occurs it will be detected and cause an open circuit The following figure shows an application example for the fault alarm contact NOTE The wire range of terminal block is from 12 24 AWG Fault Alarm Contact 24V DC Buzzer 24V Battery The open circuit will form when the power fail...

Page 21: ...0 Fax 815 433 5104 www bb elec com B B Electronics Westlink Commercial Park Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 www bb europe com Mounting Installation DIN Rail Mounting Use the screws to attach the DIN Rail to the industrial switch To remove the DIN Rail reverse the step 1 Rear Panel of the switch DIN Rail ...

Page 22: ...w bb elec com B B Electronics Westlink Commercial Park Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 www bb europe com 1 First insert the top of DIN Rail into the track 2 Then lightly push the DIN Rail into the track 3 Ensure the DIN Rail is tightly secured to the track 4 To remove the industrial switch from the track reverse steps above ...

Page 23: ...2445 www bb europe com Panel Mounting Follow the steps below to mount the industrial switch with the Panel mount plate 1 Remove the DIN Rail from the industrial switch 2 Place the wall Panel plate on the rear of the industrial switch 3 Use the screws to attach the Panel plate to the industrial switch 4 Use the hook holes at the corners of the panel mount plate to attach the industrial switch to th...

Page 24: ...IN Rail installation To panel mount the Industrial switch refer to Panel Mounting section 3 Apply power to the switch refer to the Wiring the Power Inputs section The power LED will light 4 Connect CAT 5 cables to the Industrial switch s RJ 45 ports and to the network devices NOTE If the network devices do not support MID MDIX a crossover cable may be required 5 Connect the fiber optic cables to t...

Page 25: ...3 91 792444 Fax 353 91 792445 www bb europe com Network Application X Ring Application The EIR505 series of Industrial Switches incorporate the X Ring Protocol to ensure network reliability and system restoration within 300 ms in the event of a connection failure The X Ring algorithm is similar to the spanning tree protocol STP algorithm but it has faster recovery time The following figure below i...

Page 26: ... Westlink Commercial Park Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 www bb europe com Coupling Ring Application If the network has more than one X Ring group the coupling ring function is used to connect them and add redundancy This ensures that transmissions between the two ring groups will not fail The figure below is an example of the coupling ring application ...

Page 27: ...2445 www bb europe com Dual Homing Application The Dual Homing function is used to prevent a connection loss between the X Ring group and the upper level core switch Assign a port in each X ring group to be the Dual Homing ports The Dual Homing function can only be used when the X Ring function is active Each X Ring group can have one Dual Homing port NOTE In the Dual Homing architecture the upper...

Page 28: ...web site is designed for Internet Explorer 5 0 and uses Java Applets to reduce bandwidth consumption enhance access speed and present an intuitive user interface NOTE By default IE5 0 and later versions do not allow Java Applets to activate sockets The user must modify the browser setting to enable Java Applets to operate network ports Preparing for Web Management Before using web management insta...

Page 29: ...Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 www bb europe com System Login 1 Launch Internet Explorer on the PC 2 Enter http the IP address of the switch in the address window and then Press Enter 3 The login screen will appear 4 Enter the user name and password 5 Press Enter or OK the home screen will appear Home Interface Function Menu Bar Configuration Display Screen Panel Figure...

Page 30: ...down State Displays the ports status disabled or enabled Unlinked is displayed as off Negotiation Displays the auto negotiation mode auto or forced Speed Duplex Displays the port connection speed Config is the configured value Actual is the current value Flow Control Displays the flow control status as Symmetric or Asymmetric in full mode Disable means that flow control is not enabled Config indic...

Page 31: ...ttawa IL 61350 Ph 815 433 5100 Fax 815 433 5104 www bb elec com B B Electronics Westlink Commercial Park Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 www bb europe com Port information interface Port Statistics Displays port statistics Click Clear button to reset Port Statistics Interface ...

Page 32: ...layed in the table below 2 State Enables or disables the port 3 Negotiation Sets the negotiation mode to Auto Nway specify the speed duplex of the port and enable auto negotiation or Forced 4 Speed Sets the transmit speed of the port 5 Duplex Sets the port to full duplex or half duplex 6 Flow control Sets flow control function to Symmetric or Asymmetric in Full Duplex mode The default value is Dis...

Page 33: ...tion Assigns a physical location for the switch The maximum length is 64 bytes System Description Displays the description of switch This is read only and cannot be modified Firmware Version Displays the firmware version Kernel Version Displays the kernel software version Hardware version Display the hardware version MAC Address Display the unique hardware address assigned by manufacturer this val...

Page 34: ...nitored ports to a specifically designated port the mirror port 1 Port Mirroring Mode Sets the mirror mode Select disable to disable port mirroring Select TX to monitor data being transmitted by a port Select both to monitor port data being transmitted and received by a port The default value is Disable 2 Analysis Port This is the port used to see all monitored port traffic This port can be connec...

Page 35: ...cal equivalent of reconnecting a group of devices to another Layer 2 switch However the network devices retain their same physical connection The EIR505 series switches support port based and 802 1Q tagged based VLAN In the default configuration the VLAN option is disabled VLAN Configuration interface Port based VLAN With port based VLAN the port is assigned to a VLAN Therefore all devices attache...

Page 36: ...x 815 433 5104 www bb elec com B B Electronics Westlink Commercial Park Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 www bb europe com VLAN Port Base interface 1 Click Add to add a new VLAN group The EIR505 series supports up to 64 VLAN groups 2 Enter Group name VLAN ID and select the members of VLAN group 3 Click Apply ...

Page 37: ...bb europe com VLAN Port Base Add interface 4 The VLAN group will be displayed after apply is clicked 5 Click Next Page to view the next VLAN group 6 Use Delete button to delete unwanted VLANs 7 Use Edit button to modify existing VLANs NOTE If the configuration is not saved it will be lost when the switch is powered off 802 1Q VLAN Tagged based VLAN is an IEEE 802 1Q specification which allows VLAN...

Page 38: ...can t be deled The EIR505 series will support up to 64 VLAN groups 802 1q VLAN interface Basic 1 Click Add 2 Management VLAN ID Used for Remote Management Security When this option is selected remote management is only available to the members of the indicated VLAN Group Enter the specific VLAN ID number in Management VLAN ID column check the box and click the Apply button Example If the managemen...

Page 39: ...Electronics Westlink Commercial Park Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 www bb europe com 3 Group Name assign a name for the new VLAN 4 VLAN ID fill in a VLAN ID The default is 1 5 From the Available ports box select ports to add to the VLAN group and click Add button 802 1q VLAN Add interface 6 Click Next to bring up the configuration interface ...

Page 40: ...elec com B B Electronics Westlink Commercial Park Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 www bb europe com 7 Select outgoing frames as VLAN Tagged frames or untagged and then click Apply Port VID Configure port VID settings 1 Port VLAN ID enter the port VLAN ID 2 And then click Apply 3 To reset to the default values click Default button ...

Page 41: ...re the IP Settings and DHCP client function DHCP Client Use to enable or disable the DHCP client function When the DHCP client function is enabled the industrial switch will be assigned an IP address from the network DHCP server After the Apply button is clicked dialog box will indicate that the user that when the DHCP client is enabled the current IP will lost and the new IP must be looked up on ...

Page 42: ... the DHCP Client is enabled Gateway Assign the network gateway The default gateway is 192 168 10 254 Click Apply IP configuration interface SNTP Configuration SNTP Simple Network Time Protocol allows the switch to synchronize its time with an SNTP Server 1 SNTP Client Enable or Disable SNTP 2 Daylight Saving Time Enables or disables daylight saving time When enabled the daylight saving time period...

Page 43: ... Atlantic Daylight 3 hours 9 am AST Atlantic Standard EDT Eastern Daylight 4 hours 8 am EST Eastern Standard CDT Central Daylight 5 hours 7 am CST Central Standard MDT Mountain Daylight 6 hours 6 am MST Mountain Standard PDT Pacific Daylight 7 hours 5 am PST Pacific Standard ADT Alaskan Daylight 8 hours 4 am ALA Alaskan Standard 9 hours 3 am HAW Hawaiian Standard 10 hours 2 am Nome Alaska 11 hours...

Page 44: ...5 Russia Zone 4 5 hours 5 pm ZP6 Russia Zone 5 6 hours 6 pm WAST West Australian Standard 7 hours 7 pm CCT China Coast USSR Zone 7 8 hours 8 pm JST Japan Standard Russia Zone 8 9 hours 9 pm EAST East Australian Standard GST Guam Standard Russia Zone 9 10 hours 10 pm IDLE International Date Line NZST New Zealand Standard NZT New Zealand 12 hours Midnight 4 SNTP Sever IP Enter the IP address of the ...

Page 45: ...bb europe com NOTE If the configuration is not saved it will be lost when the switch is powered off SNTP Configuration IP Security IP security function grants 10 specific IP addresses permission to access the switch through a web browser for the switch management 1 Enable the IP Security Mark the check box to enable 2 Security IP 1 10 Enter up to 10 specific IP address 3 Click Apply NOTE If the co...

Page 46: ...ence after a topology change The switch will auto detect a device that is running STP or RSTP protocol System Configuration Modify RSTP state parameters RSTP mode Enable or disable RSTP function Priority 0 61440 a value used to identify the root bridge The bridge with the lowest value has the highest priority and is selected as the root If the value changes the switch must be rebooted The priority...

Page 47: ...U packet to check RSTP status Enter a value between 1 and 10 Forward Delay Time 4 30 The number of seconds a port waits before changing from its Rapid Spanning Tree Protocol learning and listening states to the forwarding state Enter a value between 4 through 30 Click Apply NOTE 1 Use the following rule to configure the MAX Age Hello Time and Forward Delay Time 2 x Forward Delay Time value 1 Max A...

Page 48: ...he rapid state transactions that are possible within RSTP are dependent upon whether the port concerned can only be connected to one other bridge i e it is served by a point to point LAN segment or whether it can be connected to two or more bridges i e it is served by a shared medium LAN segment This function allows the P2P status of the link to be manipulated administratively True is P2P enabling...

Page 49: ...rotocol identifies one switch as the Ring Master Packets are blocked from the redundant path unless a ring member becomes disconnected from the rest of the network When this happens the protocol automatically restores connectivity using the redundant path In the X Ring topology every switch should enable X Ring function and assign two member ports to the ring Only one switch in the X Ring group wo...

Page 50: ... a redundant back up Dual homing is used to recover from a connection loss between an X Ring group and the upper level core switch Enable X Ring Mark the check box to enable the X Ring function 1st 2nd Working Ports Assign two ports as the member ports One port will be working port and one port will be the backup port The system will automatically decide which port is working port and which port i...

Page 51: ...saved it will be lost when the switch is powered off QoS Configuration Qos Policy select the Qos policy rule Using the 8 4 2 1 weight fair queue scheme The switch will follow 8 4 2 1 rate to process priority queue from Highest to lowest For example the system will process 8 high queue packets 4 middle queue packets 2 low queue packets and one lowest queue packets at the same time Use the strict pr...

Page 52: ...ned TOS only The port will follow the TOS priority assigned COS first The port will follow COS priority first and then another priority rule TOS first The port will follow TOS priority first and then another priority rule COS priority Set the COS priority level 0 7 TOS priority The system provides 0 to 63 TOS priority levels Each level has 4 types of priority high mid low and lowest The default va...

Page 53: ...53 91 792444 Fax 353 91 792445 www bb europe com QoS configuration Interface IGMP The Internet Group Management Protocol IGMP is an internal protocol of the Internet Protocol IP suite IP manages multicast traffic by using switches routers and hosts that support IGMP Enabling IGMP allows the ports to detect IGMP queries and report packets and manage IP multicast traffic through the switch IGMP has ...

Page 54: ...ope com Message Description Query A message sent from an IGMP router or switch requesting a response from each host belonging to the multicast group Report A message sent by a host indicating that the host wants to be or is a member of a given group Leave Group A message sent by a host indicating that the host has is no longer a member of a specific multicast group NOTE If the configuration is not...

Page 55: ...me enter the new user name The default is root 2 Password enter the new password The default is root 3 Confirm password reenter the new password 4 Click Apply NOTE If the configuration is not saved it will be lost when the switch is powered off Security Manager Interface Configuration Backup Used to backup the configuration to a TFTP server and load the backup configuration from the TFTP server TF...

Page 56: ...ore Configuration interface TFTP Backup Configuration Save current flash ROM value to the TFTP server 1 TFTP Server IP Address Enter the TFTP server IP 2 Backup File Name Enter the file name 3 Click Apply TFTP Backup Configuration interface TFTP Update Firmware Use to update firmware Ensure the TFTP server is ready and the firmware image is stored on the TFTP server 1 TFTP Server IP Address Enter ...

Page 57: ...k Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 www bb europe com TFTP Update Firmware interface Factory Default Reset the Switch to the default configuration NOTE The IP Address subnet mask default gateway username and password will remain as configured by the user Click Default Factory Default interface System Reboot Reboot the switch in software reset Click Reboot System Reboot int...

Page 58: ...type to filter The packet filter types are all packet types broadcast multicast unknown unicast packets broadcast multicast packets and broadcast packet only The broadcast multicast unknown unicast packet broadcast multicast packet and broadcast packet only are only for ingress The egress rate only supports all packet types Ports 1 through 5 support port ingress and egress rate control For example...

Page 59: ...15 433 5100 Fax 815 433 5104 www bb elec com B B Electronics Westlink Commercial Park Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 www bb europe com NOTE 1 If the configuration is not saved it will be lost when the switch is powered off 2 Qos and Rate control cannot exist at the same Rate Control Interface ...

Page 60: ... Ph 353 91 792444 Fax 353 91 792445 www bb europe com Trouble shooting Verify the power supply is correct 12 48V DC Do not exceed 48V DC Ensure the proper UTP cable is used for RJ 45 connections 100Ω Category 3 4 or 5 cable for 10Mbps connections or 100Ω Category 5 cable for 100Mbps connections Ensure that the length of any twisted pair connection does not exceed 328 feet 100 meters LED Indicators...

Page 61: ...hernet IEEE802 3x Flow Control and Back pressure IEEE802 1d spanning tree IEEE802 1w rapid spanning tree IEEE802 1p class of service IEEE802 1Q VLAN Tag Protocol CSMA CD Management Provides Web interface management and one default button for system default setting Technology Store and forward switching architecture Transfer Rate 14 880 pps for Ethernet port 148 800 pps for Fast Ethernet port Trans...

Page 62: ...le 10Base T 2 pair UTP STP Cat 3 4 5 cable EIA TIA 568 100 ohm 100m 100Base TX 2 pair UTP STP Cat 5 cable EIA TIA 568 100 ohm 100m Optical cable SC Multi mode 50 125um 62 5 125um SC Single mode 9 125um 10 125um Available distance 2KM Multi mode 30KM single mode Wavelength 1310nm multi mode single mode Power Supply Redundant 12 to 48 V DC power inputs with reverse polarity protection Power consumpt...

Page 63: ...w bb europe com Quality of service port based Tag based IPv4 Type of service X Ring 300 ms Recovery Time VLAN Port based VLAN and IEEE802 1Q Tag VLAN Both port based and Tag based VLAN groups up to 64 Spanning tree IEEE802 1d spanning tree and IEEE802 1w rapid spanning tree IGMP IGMP v1 and Query mode Up to 256 groups SNTP Simple Network time protocol Management IP security IP address security to ...

Page 64: ...ion to obtain the IP address from a DHCP server Bandwidth control Ingress packets filter and egress packet limit The egress rate control supports all of packet type and the limit rates are 128kbps 256Kbps 512Kbps 1MB 2MB 4MB and 8MB Ingress filter packet type combination rules are Broadcast Multicast Unknown Unicast packet Broadcast Multicast packet Broadcast packet only and all of packet The pack...

Page 65: ...x 815 433 5104 www bb elec com B B Electronics Westlink Commercial Park Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 www bb europe com EMI FCC Class A CE EN6100 4 2 CE EN6100 4 3 CE EN 6100 4 4 CE EN6100 4 5 CE EN6100 4 6 Safety EN60950 Stability testing IEC60068 2 32 Free fall IEC60068 2 27 Shock IEC60068 2 6 Vibration ...

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