- play_arrow Fast Track: Initial Installation
- play_arrow Overview
- play_arrow MX2020 System Overview and Architecture
- MX2020 Universal Edge Router Overview
- MX Series Router Architecture
- MX2020 Chassis Description
- MX2020 Backplane Description
- MX2020 Component Redundancy
- MX2020 Field-Replaceable Units
- MX Series Router Packet Forwarding Engine (PFE) Architecture
- Line Cards Supported on MX Series Routers
- Ethernet Frame Counts and Statistics on MX Series Routers
- MX2020 Router Hardware Components and CLI Terminology
- Understanding Trio Layer 2 Feature Parity
- play_arrow Alarm and Display Components
- play_arrow Cable and Rack Management
- play_arrow Cooling System Components and Descriptions
- play_arrow Host Subsystem Components
- MX2000 Host Subsystem CB-RE Description
- RE-MX2000-1800x4 CB-RE Description
- REMX2K-X8-64G and REMX2K-X8-64G-LT CB-RE Description
- CB-RE LEDs
- REMX2K-X8-128G CB-RE Description
- MX2000 Switch Fabric Board (SFB) Overview
- MX2000-SFB-S Switch Fabric Board Description
- MX2000-SFB2-S Enhanced Switch Fabric Board Description
- MX2000-SFB3 Switch Fabric Board Description
- play_arrow Interface Modules— ADCs, MPCs, and MICs
- MX Series Interface Module Reference
- MX2000 Modular Interface Card (MIC) Description
- MICs Supported by MX Series Routers
- MX2020 Modular Interface Card LEDs
- MX2020 Modular Port Concentrator (MPC) Description
- MPCs Supported by MX Series Routers
- MX2020 Modular Port Concentrator LEDs
- MX2000 Adapter Card (ADC) Description
- MPC Terminology
- MX2020 Port and Interface Numbering
- play_arrow Power Subsystem
- MX2020 Power Subsystem Description
- MX2020 Power Midplane Description
- MX2000 Three-Phase Delta AC Power Distribution Module Description
- MX2000 Three-Phase Wye AC Power Distribution Module Description
- MX2000 Seven-Feed Single-Phase AC Power Distribution Module Description
- MX2000 Nine-Feed Single-Phase AC Power Distribution Module Description
- MX2000 Three-Phase Delta and Wye AC Power Distribution Module LEDs
- MX2000 AC Power Supply Module Description
- MX2020 AC Power Supply Module LEDs
- MX2020 DC Power Distribution Module (-48 V) Description
- MX2000 DC Power Distribution Module (240 V China) Description
- MX2020 DC Power Distribution Module (-48 V) LEDs
- MX2000 DC Power Distribution Module (240 V China) LEDs
- MX2020 DC Power Supply Module (-48 V) Description
- MX2000 DC Power Supply Module (240 V China) Description
- MX2020 DC Power Supply Module LEDs
- MX2000 High-Voltage Universal (HVAC/HVDC) Power Distribution Module Description
- MX2000 High-Voltage Universal (HVAC/HVDC) Power Distribution Module LEDs
- MX2000 High-Voltage Universal (HVAC/HVDC) Power Supply Module Description
- MX2020 High-Voltage Universal Power Supply Module LEDs
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- play_arrow Site Planning, Preparation, and Specifications
- play_arrow Planning and Preparing the Site
- Overview of Preparing the Site for the MX2020 Router
- MX2020 Site Preparation Checklist
- MX2020 Physical Specifications
- MX2020 Rack Requirements
- MX2020 Cabinet Size and Clearance Requirements
- Clearance Requirements for Airflow and Hardware Maintenance for the MX2020 Router
- MX2020 Cabinet Airflow Requirements
- MX2020 Router Environmental Specifications
- MX2000 Router Grounding Specifications
- MX2020 Chassis Moving Guidelines
- MX2020 Moving Requirements and Guidelines Using a Router Transport Kit
- Rack-Mounting Requirements
- play_arrow Transceiver and Cable Specifications
- play_arrow Pinout Specifications
- RJ-45 Connector Pinouts for MX Series CB-RE Auxiliary and Console Ports
- RJ-45 Connector Pinouts for an MX Series CB-RE or RCB Management Port
- Management Cable Specifications
- Console Port Connector Pinout Information
- RJ-45 to DB-9 Serial Port Adapter Pinout Information
- Mini-USB Port Pinout Specifications
- RJ-45 Management Port Connector Pinout Information
- RJ-45 Port, SFP Port, SFP+ Port, QSFP+ Port, and QSFP28 Port Connector Pinout Information
- play_arrow AC Power Requirements, Specifications, and Guidelines
- MX2020 AC Power Requirements
- MX2000 AC Power Cord Specifications
- MX2000 AC Power System Electrical Specifications
- MX2000 Router Grounding Specifications
- MX2000 Three-Phase Delta AC Power Distribution Module Electrical Specifications
- MX2000 Three-Phase Wye AC Power Distribution Module Electrical Specifications
- MX2000 Single-Phase AC Power Distribution Module Electrical Specifications
- Calculating AC Power Requirements for MX2020 Routers
- Mapping Input Power from AC Power Distribution Modules to AC Power Supply Modules on MX2000 Routers
- play_arrow DC Power Requirements, Specifications, and Guidelines
- MX2020 DC Power Requirements
- MX2020 DC Power Distribution Description
- MX2020 DC Power Distribution (240 V China) Description
- MX2000 Router DC (-48 V) Power Subsystem Electrical Specifications
- MX2000 Router DC (240 V China) Power Subsystem Electrical Specifications
- Determining DC Power Requirements for Your MX2020 Router
- DC Power (-48 V) Circuit Breaker Requirements for the MX2020 Router
- DC Power (240 V China) Circuit Breaker Requirements for the MX2000 Router
- DC Power Cable Specifications for the MX2020 Router
- play_arrow Universal (HVAC/HVDC) Power Requirements, Specifications, and Guidelines
- MX2020 High-Voltage Universal Power Requirements
- MX2000 High-Voltage Universal PDM (MX2K-PDM-HV) Power Cord Specifications
- MX2000 Router High-Voltage Universal (HVAC/HVDC) Power Subsystem Electrical Specifications
- Determining High-Voltage Universal Power Requirements for Your MX2020 Router
- High-Voltage Universal (HVAC/HVDC) Power Circuit Breaker Requirements for the MX2000 Router
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- play_arrow Installing, Replacing, and Maintaining MX2020 Router Components
- play_arrow Required Tools and Parts
- play_arrow Installing, Removing, and Maintaining Power Components
- Replacing an MX2000 Three-Phase Delta AC Power Distribution Module
- Replacing an MX2020 Three-Phase Wye AC Power Distribution Module
- Removing an MX2000 Single-Phase AC Power Distribution Module
- Installing an MX2000 Single-Phase AC Power Distribution Module
- Replacing an MX2000 DC Power Distribution Module (-48 V)
- Replacing an MX2000 DC Power Distribution Module (240 V China)
- Replacing an MX2000 High-Voltage Universal (HVAC/HVDC) Power Distribution Module
- Replacing an MX2020 DC Power Supply Module (-48 V)
- Replacing an MX2000 DC Power Supply Module (240 V China)
- Replacing an MX2000 High-Voltage Second-Generation Universal (HVAC/HVDC) Power Supply Module
- Replacing an MX2000 AC Power Supply Module
- Maintaining the Power Supply Modules on the MX2000 Line of Routers
- Maintaining the MX2020 Power Usage
- Converting an MX2000 Router Between AC and DC Power
- play_arrow Installing, Removing, and Maintaining Cooling System Components
- Replacing an MX2020 Fan Tray
- Maintaining the MX2020 Fan Trays
- Removing the MX2020 Air Filter
- Installing an MX2020 Air Filter
- Maintaining the MX2020 Air Filter
- Maintaining the MX2020 Air Vents
- Removing the MX2020 Air Baffle
- Installing the MX2020 Air Baffle
- Maintaining the MX2020 Cooling System Components
- Maintaining the MX2020 Cooling System Zones
- play_arrow Installing, Removing, and Maintaining Host Subsystem Components
- Maintaining the MX2020 Host Subsystem
- Replacing an MX2000 SFB
- Maintaining the Switch Fabric Board (SFB)
- Replacing an MX2000 CB-RE
- Maintaining the MX2020 Control Boards
- Maintaining the MX2020 Routing Engines
- Upgrading to the Control Board-Routing Engine REMX2K-X8-64G in a Redundant Host Subsystem
- Upgrading to the REMX2K-X8-64G CB-RE in a Nonredundant Host Subsystem
- Maintaining the MX2020 Switch Processor Mezzanine Board (SPMB)
- Maintaining MX2020 Packet Forwarding Engine Components
- play_arrow Installing, Removing, and Maintaining Interface Modules— ADCs, MPCs, and MICs
- Holding an MPC
- Storing an MX2020 MPC
- Replacing an MX2020 MPC and Adapter Card (ADC)
- Maintaining MX2020 MPCs
- Maintaining MX2020 Adapter Cards
- Replacing an MX2020 MIC
- Maintaining MX2020 MICs
- Replacing an SFP or XFP Transceiver on an MX2020 MPC or MIC
- Installing an SFP or XFP into an MX2000 MPC or MIC
- Installing an MX2020 Dual-Wide MIC
- Install a Transceiver
- Remove a Transceiver
- Replacing a CFP2 Transceiver
- play_arrow Installing, Replacing, and Maintaining the Craft Interface
- play_arrow Installing, Removing, and Replacing EMI Covers
- play_arrow Installing, Replacing, and Maintaining Cables and Cable Managers
- Replacing a Cable on an MX2020 MPC or MIC
- Maintaining Cables That Connect to MX2020 MPCs or MICs
- Removing the MX2020 DC Cable Manager
- Installing the MX2020 DC Cable Manager
- Replacing the MX2020 Cable Managers
- Replacing the MX2020 Extended Cable Managers
- Removing the MX2020 Lower Cable Manager
- Installing the MX2020 Lower Cable Manager
- Removing the MX2020 Upper Cable Manager
- Installing the MX2020 Upper Cable Manager
- Replacing an MX2020 Three-Phase Delta AC Power Cord
- Replacing an MX2020 Three-Phase Wye AC Power Cord
- Replacing an MX2020 DC Power Distribution Module Cable
- Connect a Device to a Management Console Using an RJ‑45 Connector
- Connect a Fiber-Optic Cable
- Disconnect a Fiber-Optic Cable
- How to Handle Fiber-Optic Cables
- play_arrow Powering Off the Router
- play_arrow Maintaining the Chassis and Components
- Routine Maintenance Procedures for the MX2020 Router
- Taking an MX2000 Host Subsystem Offline
- Maintaining the MX2020 Chassis FRU Power On Sequence
- Maintaining and Verifying the Status of the MX2020 Router Components
- Maintaining the MX2020 Ethernet Switch
- Maintaining and Verifying the MX2020 Router Version
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- play_arrow Troubleshooting Hardware
- play_arrow Contacting Customer Support and Returning the Chassis or Components
- play_arrow Contacting Customer Support
- play_arrow Locating Component Serial Numbers
- Displaying MX2020 Router Components and Serial Numbers
- MX2020 CB-RE Serial Number Label
- MX2020 Craft Interface Serial Number Label
- MX2020 Fan Tray Serial Number Label
- MX2020 MIC Serial Number Label
- MX2020 MPC Serial Number Label
- MX2020 Power Distribution Module Serial Number Label
- MX2020 Power Supply Module Serial Number Label
- MX2020 SFB Serial Number Label
- play_arrow Packing and Returning Components
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- play_arrow Safety and Compliance Information
- play_arrow General Safety Guidelines and Warnings
- play_arrow Installation and Maintenance Safety Guidelines and Warnings
- play_arrow Radiation and Laser Warnings
- play_arrow Maintenance and Operational Safety Guidelines and Warnings
- play_arrow Electrical Safety Guidelines and Warnings
- General Electrical Safety Guidelines and Warnings
- Prevention of Electrostatic Discharge Damage
- AC Power Electrical Safety Guidelines
- AC Power Disconnection Warning
- DC Power Copper Conductors Warning
- DC Power Disconnection Warning
- DC Power Grounding Requirements and Warning
- DC Power Wiring Sequence Warning
- DC Power Wiring Terminations Warning
- Midplane Energy Hazard Warning
- Multiple Power Supplies Disconnection Warning
- Action to Take After an Electrical Accident
- play_arrow Agency Approvals and Compliance Statements
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Connecting the MX2020 Router to Management and Alarm Devices
Connecting the MX2020 Router to a Network for Out-of-Band Management
To connect the CB-RE to a network for out-of-band management, connect an Ethernet cable with RJ-45 connectors to the MGMT port on the CB-RE interface. To connect to the MGMT port on the CB-RE interface:
- Turn off the power to the management device.
- Plug one end of the Ethernet cable (Figure 2 shows the connector) into the MGMT port on the CB-RE interface. Figure 1 shows the port. Table 1 describes the Ethernet ports.
- Plug the other end of the cable into the network device.


Function No. | Label | Description |
---|---|---|
3 | MGMT | Dedicated management channel for device maintenance. It is also used for system administrators to monitor and manage the MX2020 remotely. |
See Also
Connecting the MX2020 Router to a Console or Auxiliary Device
To use a system console to configure and manage the Routing Engine, connect it to the appropriate CONSOLE port on the CB-RE interface. To use a laptop, modem, or other auxiliary device, connect it to the AUX port on the CB-RE interface. Both ports accept a cable with an RJ-45 connector. To connect a device to the CONSOLE port and another device to the AUX port, you must supply two separate cables.
We no longer include the RJ-45 console cable with the DB-9 adapter as part of the device package. If the console cable and adapter are not included in your device package, or if you need a different type of adapter, you can order the following separately:
RJ-45 to DB-9 adapter (JNP-CBL-RJ45-DB9)
RJ-45 to USB-A adapter (JNP-CBL-RJ45-USBA)
RJ-45 to USB-C adapter (JNP-CBL-RJ45-USBC)
If you want to use RJ-45 to USB-A or RJ-45 to USB-C adapter you must have X64 (64-Bit) Virtual COM port (VCP) driver installed on your PC. See, https://ftdichip.com/drivers/vcp-drivers/ to download the driver.
The MX2020 router must be adequately grounded before powering on the console or auxiliary devices, (see MX2000 Router Grounding Specifications).
To connect a management console or auxiliary device:


Function No. | Label | Description |
---|---|---|
1 | AUX | Connect a laptop, modem, or other auxiliary unit. |
2 | CONSOLE | Connect a laptop or console terminal to configure the MX2020 router. |
See Also
Connecting an MX2020 Router to an External Alarm-Reporting Device
To connect the router to external alarm-reporting devices, attach wires to the RED and YELLOW relay contacts on the craft interface, (see Figure 5). A system condition that triggers the red or yellow alarm LED on the craft interface also activates the corresponding alarm relay contact.
The terminal blocks that plug into the alarm relay contacts are supplied with the router, (see Table 3). They accept wire of any gauge between 28 AWG and 14 AWG (0.08 and 2.08 mm2); the wire which is not provided. Use the gauge of wire appropriate for the external device you are connecting.
To connect an external device to an alarm relay contact (see Figure 5).
- Prepare the required length of wire with gauge between 28 AWG and 14 AWG (0.08 and 2.08 mm2).
- While the terminal block is not plugged into the relay contact, use a 2.5 mm flat-blade screwdriver to loosen the small screws. With the small screws facing left, insert wires into the slots in the front of the block based on the wiring for the external device. Tighten the screws to secure the wire.
- Plug the terminal block into the relay contact, and use a 2.5 mm flat-blade screwdriver to tighten the screws on the face of the block.
- Attach the other end of the wires to the external device.
To attach a reporting device for the other kind of alarm, repeat the procedure.

Function No. | Label | Description |
---|---|---|
1 | MINOR ALARM—[NC C NO] MAJOR ALARM—[NC C NO] | The alarm relays consist of three terminal contacts with a normal closed (NC), common (C), and normal open (NO) relays that signal a minor or major alarm when broken. |