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Micas M2-W6940-128QC Hardware Installation And Reference Manual

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Micas M2-W6940-128QC Switch
Hardware Installation and Reference Guide
Document version: V2.0
Date: November 21, 2023
Copyright © 2023 Micas Networks Inc

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Summary of Contents for Micas M2-W6940-128QC

  • Page 1 Micas M2-W6940-128QC Switch Hardware Installation and Reference Guide Document version: V2.0 Date: November 21, 2023 Copyright © 2023 Micas Networks Inc...
  • Page 2 The purchased products, services, and features are stipulated by the contract made between Micas Networks and the customers. All or part of the products, services, and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS"...

  • Page 3: Preface

    Preface Intended Audience This document is intended for: Network engineers  Technical support and servicing engineers   Network administrators Technical Support Official Website: https://www.micasnetworks.com/support/ Signs The signs used in this document are described as follows: Danger An alert that contains important safety instructions. Before you work on any equipment, be aware of the hazards involved and be familiar with standard practices for preventing accidents.
  • Page 4 Notes The port type involved in this manual may be different from the actual situation. Please proceed  with configuration according to the port type supported by the product. The display information involved in this manual may contain the content of other products (such ...

  • Page 5: Table Of Contents

    Contents Preface ..............................I 1 Overview ............................1 1.1 About the M2-W6940-128QC ....................1 1.2 Component Modules ......................1 1.3 Chassis ............................. 2 1.3.1 Appearance ......................... 3 1.3.2 LEDs ..........................6 1.3.3 Ports ..........................7 1.3.4 Cooling ......................... 8 1.3.5 Technical Specifications ................... 9 1.4 Power Module ........................
  • Page 6 2 Preparing for Installation ......................20 2.1 Safety Guidelines ........................20 2.1.1 General Precautions ....................20 2.1.2 Chassis-Lifting Guidelines ..................20 2.1.3 Electricity Safety ......................21 2.1.4 Preventing ESD Damage ..................21 2.1.5 Laser Safety ....................... 22 2.1.6 Storage Guidelines ....................22 2.2 Site Requirements ........................
  • Page 7 2.4 Tools ............................28 2.5 Unpacking the Switch ......................28 2.5.1 Verifying the Shipped Content ................28 2.5.2 Unpacking the Container ..................29 3 Installing the Switch ........................32 3.1 Installation Procedure ......................32 3.2 Installing the Rack ........................ 33 3.2.1 Installation Guidelines .....................
  • Page 8 3.6 Installing and Removing the Power Module ..............39 3.6.1 Installing the Power Module ..................39 3.6.2 Removing the Power Module .................. 40 3.7 Installing the Pluggable Module ..................41 3.8 Verifying Installation ......................41 3.9 Connecting the Power Cord ....................42 4 Commissioning ..........................
  • Page 9 5.2.3 Replacing the Lithium Battery ................47 5.2.4 Replacing the Fuse ....................48 6 Troubleshooting ........................... 49 6.1 Flowchart ..........................49 6.2 Common Issues ........................50 6.2.1 Forgetting Login Password ..................50 6.2.2 AC Power Module Failure ..................50 6.2.3 Fan Module Not Rotating ..................50 6.2.4 No Output on the Console ..................
  • Page 10 7.3 Surge Protection ........................56 7.3.1 Installing an AC Power Arrester ................56 7.3.2 Installing an Ethernet Port Arrester ................ 58 7.4 Site Selection ......................... 59 7.5 Recommended Cabling ...................... 60...

  • Page 11: Overview

    About the M2-W6940-128QC The M2-W6940-128QC switch is a next-generation 400GE core switch featuring high-performance, high-density, and low-latency launched by Micas Networks for Artificial Intelligence (AI) and other applications. The M2-W6940-128QC switch delivers Top of Rack (ToR) uplink aggregation and diverse data center features. It can be used with the M2-W6500 series switches for a high- performance and high-reliability data center network.

  • Page 12: Chassis

    M2-W6940-128QC- PA2000I-F FAN80-01-F 128QC Chassis The M2-W6940-128QC hardware system consists of a chassis, a power supply system, and a cooling system. Power supply system: provides four power module slots and supports 2+2 power redundancy.   Cooling system: provides eight fan module slots and supports 4+1 fan redundancy.

  • Page 13: Appearance

    M2-W6940-128QC Hardware Installation and Reference Guide Overview Appearance 1.3.1 1. Appearance Front View of the M2-W6940-128QC Figure 1-1 Rear View of the M2-W6940-128QC Figure 1-2...
  • Page 14 M2-W6940-128QC Hardware Installation and Reference Guide Overview 2. Structure Front Panel Structure Figure 1-3...
  • Page 15 M2-W6940-128QC Hardware Installation and Reference Guide Overview Front Panel Components Table 1-3 Component Ground for ESD-preventive wrist strap QSFP112 port QSFP112 port LED Asset tag System status LED Power status LED Fan status LED Console port USB port Management port...

  • Page 16: Leds

    M2-W6940-128QC Hardware Installation and Reference Guide Overview Component Fan module slot Power module slot Power status LED Grounding stud LEDs 1.3.2 LEDs Table 1-5 Silkscreen Label Description Solid green: The system is operating normally. Blinking green: The system is starting up.

  • Page 17: Ports

    M2-W6940-128QC Hardware Installation and Reference Guide Overview Silkscreen Label Description Solid yellow: The port has made a successful 10/100 Mbps link. Blinking yellow: The port is sending and receiving traffic at 10/100 Mbps. Management LINK/ACT Solid green: The port has made a successful 1,000 Mbps port LED link.

  • Page 18: Cooling

    ○ Default value: 115,200 bits/s Cooling 1.3.4 The M2-W6940-128QC adopts the front-to-rear airflow. Air flows in through the ports and out through the power module, as shown in Figure 1-5. Caution Maintain a minimum clearance of 200 mm (7.87 in.) around the equipment for air circulation.

  • Page 19: Technical Specifications

    M2-W6940-128QC Hardware Installation and Reference Guide Overview Front-to-Rear Airflow Figure 1-5 Technical Specifications 1.3.5 Technical Specifications Table 1-7 Class Item Specification 2.0 GHz eight-core Memory 32 GB, DDR4 (up to 256GB) Technical indicators Flash memory NOR flash: MB (for BootROM)
  • Page 20 M2-W6940-128QC Hardware Installation and Reference Guide Overview Class Item Specification Integrated chassis without expansion module slots Structure Four power module slots Five fan module slots 128 x 400GE QSFP112 ports, backward compatible with 200GE, each port splittable into two 100GE ports or four...
  • Page 21 M2-W6940-128QC Hardware Installation and Reference Guide Overview Class Item Specification AC power protection Surge protection Common mode: 2 kV Differential mode: 1 kV Power supply mode Power connector C14 three-pin connector Max: 4,000 W Power consumption Typical: 3,846 W Voltage...

  • Page 22: Power Module

    Cut off the power supply before opening the enclosure in case of an electric shock. Power Module The smart power module for the M2-W6940-128QC supports power consumption management and hot swapping. It can obtain the output power, output current, and operating temperature in real time.

  • Page 23: Pa2000I-F

    M2-W6940-128QC Hardware Installation and Reference Guide Overview PA2000I-F 1.4.1 1. Appearance Appearance Figure 1-6 Structure Figure 1-7 Components Table 1-8 Component Description Forward fan...
  • Page 24 M2-W6940-128QC Hardware Installation and Reference Guide Overview Handle Handle of the power module Power Three-pin connector connector Latch LED Latch of the power module Power status LED 2. LED Table 1-9 Silkscreen Description Label Solid green: The power module is outputting power normally.
  • Page 25 M2-W6940-128QC Hardware Installation and Reference Guide Overview Item Specification Rated input voltage range AC: 220 V AC, 50 Hz/60 Hz Max. input voltage range AC: 90 V AC to 264 V AC, 47 Hz to 63 Hz Rated input current...

  • Page 26: Fan Module

    M2-W6940-128QC Hardware Installation and Reference Guide Overview Fan Module FAN80-01-F 1.5.1 1. Appearance Structure Figure 1-8 Components Table 1-11 Component Description Fan status LED Latch Latch of the fan module Handle Handle of the fan module...
  • Page 27 M2-W6940-128QC Hardware Installation and Reference Guide Overview 2. LED Table 1-12 Silkscreen Description Label Solid green: The fan module is operating normally. Fan status Blinking green: The fan module is being initialized. Solid red: The fan module is not functioning properly.

  • Page 28: Cables

    2. AC Power Cord Select AC power cords based on the types of power sockets used in your equipment room. Micas provides the following types of power cords to suit different the power sockets: ...

  • Page 29: Grounding Wire

    M2-W6940-128QC Hardware Installation and Reference Guide Overview delivered with a PDU with C14 straight female connectors, as shown in Figure 1-9. Country-specific power cords: delivered in compliance with standards of the destination country  or region. AC Power Cord Structure...

  • Page 30: Preparing For Installation

    M2-W6940-128QC Hardware Installation and Reference Guide Preparing for Installation Preparing for Installation Safety Guidelines Note To avoid personal injury or equipment damage, review the safety guidelines in this chapter  before you begin the installation.  The following safety precautions may not include all the potentially hazardous situations.

  • Page 31: Electricity Safety

    M2-W6940-128QC Hardware Installation and Reference Guide Preparing for Installation  Avoid transporting the bare equipment. Instead, transport the equipment with its packing materials. Do not create a stack containing a greater number of chassis than what is indicated on the ...

  • Page 32: Laser Safety

    M2-W6940-128QC Hardware Installation and Reference Guide Preparing for Installation  Handle component boards by their handles or edges only. Do not touch the printed circuit boards or connectors. Place a removed component board in a static-shielding container.  Avoid contact between the printed circuit boards and clothing. The ESD-preventive wrist strap ...

  • Page 33: Airflow

    M2-W6940-128QC Hardware Installation and Reference Guide Preparing for Installation Airflow 2.2.2 To ensure adequate airflow through the chassis, maintain a minimum clearance of 20 cm (7.87 in.) around air vents. Route the cables and power cords through the cable management brackets to avoid blocking air intake vents.

  • Page 34: Cleanliness

    M2-W6940-128QC Hardware Installation and Reference Guide Preparing for Installation Note The operating humidity is measured at the point that is 1.5 m (4.92 ft.) above the floor and 0.4 m (1.31 ft.) before the equipment with no protective plates in front or at the back of the equipment.

  • Page 35: System Grounding

    M2-W6940-128QC Hardware Installation and Reference Guide Preparing for Installation Note The average value is measured over one week. The maximum value is the upper limit of the harmful gas measured in one week for up to 30 minutes every day.

  • Page 36: Preventing Electromagnetic Interference

    M2-W6940-128QC Hardware Installation and Reference Guide Preparing for Installation There are two grounding studs in the upper right corner of the rear panel. They are pasted with a conspicuous label. Grounding Stud Figure 2-1 Preventing Electromagnetic Interference 2.2.8 Electromagnetic interference mainly comes from outside the equipment or application system and affects the equipment through capacitive coupling, inductive coupling, electromagnetic waves, and other conduction modes.

  • Page 37: Rack-Mounting Guidelines

    M2-W6940-128QC Hardware Installation and Reference Guide Preparing for Installation Rack-Mounting Guidelines If you plan to install the equipment on a rack, ensure that the rack meets the following requirements: 19-Inch Rack Figure 2-2 (1) Use a four-post 19-inch EIA rack.

  • Page 38: Tools

    M2-W6940-128QC Hardware Installation and Reference Guide Preparing for Installation Tools Tools Table 2-3 Tools Description Philips screwdriver, utility knife, adjustable wrench, ESD-preventive Common tools clothing ESD-preventive wrist strap, ESD-preventive glove, marker, cage nuts, Dedicated tools screws, cables, and cable ties Note The tool kit does not come with the equipment.

  • Page 39: Unpacking The Container

    M2-W6940-128QC Hardware Installation and Reference Guide Preparing for Installation Unpacking the Container 2.5.2 Cut off the packing straps on the shipping box with scissors, place the box on a flat surface, and check whether the seal on top of box is intact.
  • Page 40 M2-W6940-128QC Hardware Installation and Reference Guide Preparing for Installation Figure 2-5 Figure 2-6 Place the switch with the panel foam facing upwards. Remove the panel foam and set it aside. Move the switch with both hands onto the shipping box of another product, and remove the foam on the other side.
  • Page 41 M2-W6940-128QC Hardware Installation and Reference Guide Preparing for Installation Figure 2-7 (8) Press the power module inward to ensure that the power module is fully seated into the system.

  • Page 42: Installing The Switch

    M2-W6940-128QC Hardware Installation and Reference Guide Installing the Switch Installing the Switch Make sure that guidelines and requirements in chapter 2 have been met before you begin the installation. Plan for the installation site, networking mode, power supply, and cabling in advance.

  • Page 43: Installing The Rack

    M2-W6940-128QC Hardware Installation and Reference Guide Installing the Switch Installing the Rack Installing the Chassis Installing the Protective Grounding Wire Installing and Removing the Fan Module Installing and Removing the Power Module Installing the Pluggable Module Verifying Installation Connecting the Power Cord...

  • Page 44: Procedure

    M2-W6940-128QC Hardware Installation and Reference Guide Installing the Switch Note for site selection guidelines.  Site Selection for cabling guidelines.  Recommended Cabling Procedure 3.2.2 (1) Make sure that there is enough space before installing the rack. Reserve enough clearance before the front and rear doors for equipment maintenance.

  • Page 45: Mounting The Chassis On The Rack

    M2-W6940-128QC Hardware Installation and Reference Guide Installing the Switch Installing the Cage Nuts Figure 3-2 Installing the Guide Rails Figure 3-3 Mounting the Chassis on the Rack 3.3.3 The chassis can be installed on a standard 19-inch EIA rack. Mount the chassis on the rack with its front panel facing forward.

  • Page 46: Installing The Protective Grounding Wire

    M2-W6940-128QC Hardware Installation and Reference Guide Installing the Switch Mounting the Chassis on the Rack Figure 3-4 Caution  Install the L-bracket by driving screws into the four among six screw holes on each side. Distinguish left and right rack-mount guide rails according to the notations.

  • Page 47: Procedure

    M2-W6940-128QC Hardware Installation and Reference Guide Installing the Switch Procedure 3.4.2 (1) Remove the grounding screw on the rear panel. (2) Crimp one end of the grounding wire to the grounding terminal of the chassis and the other end to the grounding terminal of the rack or the grounding bar of the equipment room, as shown in Figure 2-1.

  • Page 48: Removing The Fan Module

    M2-W6940-128QC Hardware Installation and Reference Guide Installing the Switch Installing the Fan Module Figure 3-5 Warning  Slide the fan module all the way into the chassis gently. Align the fan module in the right orientation to the open fan slot.

  • Page 49: Installing And Removing The Power Module

    M2-W6940-128QC Hardware Installation and Reference Guide Installing the Switch Removing the Fan Module Figure 3-6 Warning Pull the fan module out of the slot gently.   If the fan module slot is to remain empty, install a filler panel to allow for adequate airflow and to keep dust out of the chassis.

  • Page 50: Removing The Power Module

    M2-W6940-128QC Hardware Installation and Reference Guide Installing the Switch Installing the Power Module Figure 3-7 Warning Slide the power module all the way into the chassis gently. Align the power module in the  right orientation to the open power slot.

  • Page 51: Installing The Pluggable Module

    Make sure that you have mounted the chassis on the rack before installing the pluggable  module. For procedure, see Micas Optical Module Hardware Installation and Reference Guide for  details. The documentation is subject to update without prior notification. Please access Micas Networks at https://www.Micasnetworks.com/...

  • Page 52: Connecting The Power Cord

    M2-W6940-128QC Hardware Installation and Reference Guide Installing the Switch  Locate the emergency power-off switch in the room. In the case of an electrical accident, you will be able to quickly turn off the power. Never assume that power is disconnected from a circuit. Instead, always check.

  • Page 53: Commissioning

    M2-W6940-128QC Hardware Installation and Reference Guide Commissioning Commissioning Setting Up the Configuration Environment Connect the serial port of a PC to the console port of the device with a cable, as shown in Figure 4- Configuration Environment Figure 4-1 Device...
  • Page 54 M2-W6940-128QC Hardware Installation and Reference Guide Commissioning Click Serial in the left column. Set Bits per second to 115,200, Data bits to 8, Parity to None, Stop bits to 1, and Flow control to None. Click Open to set up the connection.

  • Page 55: Powering On The Device

    M2-W6940-128QC Hardware Installation and Reference Guide Commissioning (4) After setting up the configuration environment, power on the device. If the device is already configured with a password, a notification will appear. Click Accept, and enter your username and password for connection.

  • Page 56: Monitoring And Maintenance

    M2-W6940-128QC Hardware Installation and Reference Guide Monitoring and Maintenance Monitoring and Maintenance Monitoring Monitoring the LEDs 5.1.1 Each module installed in the chassis features a LED, which can be used to monitor the status of each module while the switch is running. See 1 Overview for details.

  • Page 57: Maintenance

    M2-W6940-128QC Hardware Installation and Reference Guide Monitoring and Maintenance Maintenance Replacing the Power Module 5.2.1 The power failure will be prompted through monitoring signals. In the case of a power failure, contact your distributor or technical support team. for procedure.

  • Page 58: Replacing The Fuse

    M2-W6940-128QC Hardware Installation and Reference Guide Monitoring and Maintenance Danger ● There is the danger of explosion if the battery is replaced incorrectly. Replace the battery only with the same or equivalent type recommended by the manufacturer. ● Dispose the replaced lithium battery properly.

  • Page 59: Troubleshooting

    M2-W6940-128QC Hardware Installation and Reference Guide Troubleshooting Troubleshooting Flowchart The equipment is not working properly. Check whether the rack is installed properly. Check whether the chassis is mounted on the rack properly. Check whether the power cord is connected properly.

  • Page 60: Common Issues

    M2-W6940-128QC Hardware Installation and Reference Guide Troubleshooting Common Issues Forgetting Login Password 6.2.1 Symptom The login password is forgotten. Handling Method Contact technical support team. AC Power Module Failure 6.2.2 Symptom All LEDs on the front panel are off. The fan status LED is off, and the fan does not rotate.

  • Page 61: Garbled Output On The Console

    M2-W6940-128QC Hardware Installation and Reference Guide Troubleshooting port on the HyperTerminal is consistent with that in Configuration Guide. If there is still no console output, contact technical support team. Garbled Output on the Console 6.2.5 Symptom The console output is garbled.

  • Page 62: Appendix

    M2-W6940-128QC Hardware Installation and Reference Guide Appendix Appendix Labeling Process Hand Writing on Labels 7.1.1 Writing tool: black gel pen Pasting Labels 7.1.2 Fill in the label content on the full-page label paper before attaching the label, and then paste it on the power cord or signboard wire buckle.

  • Page 63: Label Contents

    M2-W6940-128QC Hardware Installation and Reference Guide Appendix Signal Cable Labeling Procedure Figure 7-2 Label Contents 7.1.3 The contents of the two sides of the label identify the location of the ports connected to the two ends of the power cord. Fill in the label according to the specific environment.

  • Page 64: Connectors And Media

    M2-W6940-128QC Hardware Installation and Reference Guide Appendix Connectors and Media 100BASE-TX/10BASE-T Port 7.2.1 100BASE-TX/10BASE-T Pin Assignment Table 7-1 MDI Mode MDI-X Mode Output Transmit Data+ Input Receive Data+ Output Transmit Data– Input Receive Data-– Input Receive Data+ Output Transmit Data+ Input Receive Data–...
  • Page 65 M2-W6940-128QC Hardware Installation and Reference Guide Appendix Keep the side without the RJ45 locking clip facing yourself. The signal cables are numbered 1 to 8 from left to right. Cable Connection Modes and Signals Figure 7-5 1000BASE-T Pin Assignment Table 7-2...

  • Page 66: Surge Protection

    M2-W6940-128QC Hardware Installation and Reference Guide Appendix 1000BASE-T Twisted Pair Connections Figure 7-6 Surge Protection Installing an AC Power Arrester 7.3.1 When an AC power cord from outdoors is directly plugged into the power port of the switch, the AC power connector must be connected to an external surge protector power strip to protect the switch against lightning strikes.
  • Page 67 M2-W6940-128QC Hardware Installation and Reference Guide Appendix Power Arrester Figure 7-7 Note The power arrester does not come with the equipment. Please purchase it based on actual requirements. Important points:  Make sure that the PE terminal of the power arrester is well grounded.

  • Page 68: Installing An Ethernet Port Arrester

    M2-W6940-128QC Hardware Installation and Reference Guide Appendix arrester's PE terminal is not grounded. Installing an Ethernet Port Arrester 7.3.2 Please connect an Ethernet port arrester to the switch to prevent the damage by lightning before connecting an outdoor network cable to the switch.

  • Page 69: Site Selection

    M2-W6940-128QC Hardware Installation and Reference Guide Appendix Note The Ethernet port arrester is only for the 10/100 Mbps electrical ports with an RJ-45 connector.  The Ethernet port arrester is not delivered with the switch. Please purchase it as required. The ...

  • Page 70: Recommended Cabling

    M2-W6940-128QC Hardware Installation and Reference Guide Appendix and window away from the pollution source. The equipment room should be away from the residential area. Otherwise, the equipment room  should meet the construction standard in terms of noise.  Make sure the air vent of the equipment room is away from the sewage pipe, septic tank, and sewage treatment tank.
  • Page 71 M2-W6940-128QC Hardware Installation and Reference Guide Appendix should be over 10 times greater than its diameter. ○ The bend radius of a fixed high-speed cable (such as SFP+ cable) should be over five times greater than its diameter. The bend radius of the fixed high-speed cable that is often bent or plugged should be over10 times greater than its diameter.
  • Page 72 M2-W6940-128QC Hardware Installation and Reference Guide Appendix insulated lining. Use cable ties to bundle up cables properly. Please do not connect two or more cable ties to  bundle up cables.  After bundling up cables with cable ties, cut off the remaining part. The cut should be smooth...
  • Page 73 M2-W6940-128QC Hardware Installation and Reference Guide Appendix  Leave a margin for the power cords connecting moving parts such as door grounding wires after they are connected to avoid suffering tension or stress. When the moving part is installed, the remaining cable part should not touch heat sources or sharp corners.
  • Page 74 M2-W6940-128QC Hardware Installation and Reference Guide Appendix  No knot is allowed in cabling or bundling. For wiring terminal blocks (such as circuit breakers) with insulated terminals, the metal part of  the insulated terminal should not be exposed outside the terminal block during assembling.

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