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Installation Manual 

8. Appendix B Lightning Protection 

40 

 

www.qtech.ru 

 

terminal is not grounded; if the L line is on the left and the N line is on the right, the polarity 
of the arrester power cable shall be reversed by the power arrester; if the LED is still Red, it 
is confirmed that the arrester PE terminal has not been grounded. 

Installing the Ethernet Port Arrester 

During the switch usage, the Ethernet port arrester should be connected to the switch to prevent 
the switch damage by lightning before the outdoor network cable connects to the switch .  

Tools: Cross or straight screwdriver, Multimeter, Diagonal pliers 

Installation Steps: 

1.

 

Tear one side of the protection paper for the double-sided adhesive tape and paste the tape 
to the framework of the Ethernet port arrester. Tear the other side of the protection paper 
for  the  double-sided  adhesive  tape  and  paste  the  Ethernet  port  arrester  to  the  switch 
framework.  The  paste  location  for  the  Ethernet  port  arrester  should  be  as  close  to  the 
grounding terminal of the switch as possible.  

2.

 

Based  on  the  distance  of  the  switch  grounding  terminal,  cut  the  grounding  line  for  the 
Ethernet port arrester and firmly tighten the grounding line to the grounding terminal of the 
switch. 

3.

 

Use the multimeter to check whether the grounding line for the arrester is in good contact 
with the switch grounding terminal and the framework.  

4.

 

According  to  the  description  on  the  Ethernet  Port  Arrester  Hardware  Installation  Guide, 
connect  the  arrester  using  the  adapter  cable(note  that  the  external  network  cable  is 
connected to the end of IN, while the adapter cable connected to the switch is connected to 
the end of OUT) and observe whether the LED on the borad is normal or not. 

5.

 

Use the nylon button to bundle the power cables.  

Figure B-2 Schematic Diagram for the Ethernet port Arrester Installation 

Summary of Contents for QSW-6900-56LF Series

Page 1: ...Installation Manual 0 Preface 1 www qtech ru QSW 6900 56LF Series Switches Hardware Installation and Reference Guide QSW 6900 56LF...

Page 2: ...this document in any form or by any means without the prior written consent of QTECH is prohibited Exemption Statement This document is provided as is The contents of this document are subject to cha...

Page 3: ...umed that the users of this switch are already familiar with the related terms and concepts of Ethernet Obtaining Technical Assistance QTECH Website https www qtech ru Technical Support Website https...

Page 4: ...l 100G QSFP28 Ethernet Port 10G SFP Ethernet Port 10GBase T Ethernet Port Extension Module Slot Redundant Fan Redundant Power Supply QSW 6900 56LF 8 48 N A N A 3 1 1 1 An SFP port supports 10GBase R a...

Page 5: ...rent range 3 6A Power Consumption Less than 300 W Optical Module The supported modules update at any time contact QTECH for details SFP Port Supported QSFP28 Port Supported FC Port Unsupported 10GBASE...

Page 6: ...6900 56LF includes the chassis the power supply system and the heat dissipation system The power supply system Provides two power supply slots which support 1 1 power supply redundancy It is recommend...

Page 7: ...to the switch status indicator of the switch back panel The label is movable and can be withdrawn from the device Users can mark the information such as asset name category code and registration date...

Page 8: ...perform program downloading SFP port There are 48 10G SFP ports which support optical modules and DAC copper cables 1000BASE X compatible QSFP28 port There are 8 100G QSFP28 ports which support optic...

Page 9: ...hes support 1 1 power supply redundancy To improve the stability and reliability of the entire system it is recommended to configure 1 1 power supply redundancy When the two power supply modules work...

Page 10: ...in the front and at the back of the chassis at least 20 cm for ventilation It requires at least three fan modules to work normally Filler panels need to be installed in the unoccupied fan module slots...

Page 11: ...power supply handle or the fan handle for these parts are not designed for bearing the entire weight of the device It will cause damage to the device or to your body if you hold these parts when remo...

Page 12: ...are used Use an anti static shielding bag to properly store the board Do not let any clothes touch a circuit board An antistatic wrist strap can only prevent human static electricity from damaging the...

Page 13: ...sulation or even leak electricity And sometimes the materials may suffer from mechanical performance change and metallic parts may get rusted On the other hand in an environment with low relative humi...

Page 14: ...ng Requirements A good grounding system is the basis for the stable and reliable operation of the QSW 6900 56LF It is the key to prevent lightning stroke and resist interference Please carefully check...

Page 15: ...of the propagation path When the energy often RF energy from a component arrives at a sensitive component via the space the energy is known as radiated interference The interference source can be eith...

Page 16: ...ti static gloves stripping pliers crimping pliers crystal head crimping pliers wire cutters Fiber optic cleaning Tools Air laid paper fiber end microscope Meter Multimeter errormeter optic power meter...

Page 17: ...power supply and wiring before installation Verify the following requirements before installation The installation location provides sufficient space for heat dissipation The installation location me...

Page 18: ...should be installed securely and the fastening screws on the panel should be tightened All wiring inlets at the top and bottom of the cabinet should be installed with rodent resistant nets with seams...

Page 19: ...m the plastic package Install the brackets at the side panels of the switch and fix the brackets with four M4 8FMO countersink screws at each side Figure 3 1 Installing Mounting Brackets Mounting the...

Page 20: ...ts provided are only applicable for cabinets with depth of 800mm 1200mm Mounting the Switch to a Workbench In some cases users do not have the 19 inch standard cabinet The common solution is to place...

Page 21: ...with a screwdriver to fix the fan module in the switch chassis Figure 3 4 Installing a Fan Module Insert the fan module smoothly Pay attention to the direction of the fan panel to avoid wrong inserti...

Page 22: ...the package and confirm the input mode and the input parameters of the power module match the requirements Remove the power filler panel and take the plane printed with power information as the top p...

Page 23: ...the location where the power module is removed to ensure the normal ventilation and dissipation and avoid the dust in the chassis Installing Power Cord Retainer Power cord retainer includes a strap a...

Page 24: ...e 4 Plug the power cord into the connector Pass the power cord through the strap and adjust the ring by pressing buckle B until the power cord is fastened Figure 3 9 Installing Power Cord Retainer Rem...

Page 25: ...used Do not use bare wire The grounding resistance for combined grounding should be less than 1 To guarantee the security of the person and the device the QSW 6900 56LF must be well grounded The groun...

Page 26: ...ir with the RJ45 port into the appropriate interface according to the identification on the panel of the line card Distinguish the crossover cable and straight through cable 3 10 Binding the Cables Pr...

Page 27: ...the Cables Verify that the fibers and twisted pairs match the ports Verify that the cables have been bound properly Verify that the cabling specification and connecting method are correct Verify that...

Page 28: ...able to the serial port of the PC 2 Connect one end of the console cable RJ45 to the console port of the switch Setting Terminal Parameters Step One Start the PC and run the terminal simulation progra...

Page 29: ...igure 4 3 In the column of Connect Using field select the serial port you want to use Figure 4 3 After the serial port is selected please click OK The Serial Port Parameter Setting window is displayed...

Page 30: ...rrectly connected Check if the power supply voltage complies with the requirement of the switch Check if the console cable is correctly connected the terminal can be a PC used for configuration is alr...

Page 31: ...indicator of the host or the extension module is red or flashing it indicates a failure in which case you need to find out the cause and turn off the power when necessary When the RWR1 PWR2 indicator...

Page 32: ...ium Battery The built in lithium batteries can support the real time clock of the QSW 6900 56LF series switches without external power supply Please contact the technical support representatives of QT...

Page 33: ...ch in the cabinet Check the power connection Check the installation of the power supply module Check the plug in units of each module Check the installation and fastening of the modules Check the indi...

Page 34: ...fan tray does not work Fault Description After the system starts the fans in the fan module do not work or the Status indicator is OFF Troubleshooting Check if the connection between the fan module a...

Page 35: ...The system runs normally After the fiber interface is inserted into the optical module and the optical fiber is properly connected the link cannot be set up Troubleshooting 1 Check whether the receiv...

Page 36: ...C 11801 Ed2 1 TIA 568 C 2 Class E ISO IEC TR24750 TSB 155 Max Transmissio n Distance 100 m 100 m 100 m 37 m to 55 m Cabling System Bandwidth 600 MHz 500 MHz 250 MHz Description Meet the minimum perfor...

Page 37: ...rd and uses up to 100m of 100 ohm CAT5 CAT5E or twisted pairs with higher standard The 1000BASE T port uses four pairs of wires for transmission all of which must be connected Figure A 1 shows the con...

Page 38: ...ection of the twisted pairs of the 100BASE TX 10BASE T Fiber Connection For the fiber ports select single mode or multiple mode fibers for connection according to the fiber module connected The connec...

Page 39: ...igure B 1 Schematic Diagram for the Power Arrester The power arrester is not provided and the user should purchase it to address the practical requirement Precautions for installation Make sure that t...

Page 40: ...r for the double sided adhesive tape and paste the Ethernet port arrester to the switch framework The paste location for the Ethernet port arrester should be as close to the grounding terminal of the...

Page 41: ...n to the following conditions during the actual installation to avoid influencing the performance of the Ethernet port arrester Reversed direction of the arrester installation You shall connect the ex...

Page 42: ...er seven times greater than their respective diameters After cabling is fixed the bend radius of a common coaxial cable should be over seven times greater than its diameter The bend radius of this typ...

Page 43: ...hould maintain a distance not less than 30 mm The binding rack and cabling slot inside and outside the cabinet should be smooth without sharp corners The metal hole traversed by cables should have a s...

Page 44: ...will not affect device running or cause device damage or cable damage during commissioning 220V and 48V power cords cannot be bundled on the guide rails of moving parts The power cables connecting mov...

Page 45: ...n and cable Do not use self tapping screws to fasten terminals Power cables of the same type and in the same cabling direction should be bundled up into cable bunches with cables in cable bunches clea...

Page 46: ...Recommendations in Installation 46 www qtech ru For wiring terminal blocks such as air switches of the cold pressing terminal type the metal part of the cold pressing terminal should not be exposed o...

Page 47: ...s windstorm and heavy rain as well as away from dust If the dust is unavoidable keep the door and window away from the pollution source The machine room should be away from the residential area Otherw...

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