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Table of Contents Expand all

play_arrow Fast Track: Initial Installation
- Fast Track to Rack Installation and Power
- Onboard, Configure, and Monitor MX960
play_arrow Overview
- play_arrow System Overview
  - MX960 Router Overview
- play_arrow Chassis Components and Descriptions
- play_arrow Cooling System Components and Descriptions
  - MX960 Cooling System Description
  - MX960 Fan LED
- play_arrow Host Subsystem Components and Descriptions
- play_arrow Interface Modules—DPCs
- play_arrow Interface Modules—FPCs and PICs
- play_arrow Interface Modules—MPCs and MICs
- play_arrow Services Processing Card—MX-SPC3
  - Services Processing Card—MX-SPC3 Services Card
- play_arrow Power System Components and Descriptions
- play_arrow Switch Control Board Components and Descriptions
play_arrow Site Planning, Preparation, and Specifications
- play_arrow Preparation Overview
- play_arrow Transceiver and Cable Specifications
- play_arrow Pinout Specifications
- play_arrow AC Power Requirements, Specifications, and Guidelines
- play_arrow DC Power Requirements, Specifications, and Guidelines
- play_arrow High-Voltage Second-Generation Universal (HVAC or HVDC) Power Requirements, Specifications, and Guidelines
play_arrow Initial Installation and Configuration
play_arrow Installing and Replacing Components
- play_arrow Overview of Installing and Replacing Components
  - MX960 Field-Replaceable Units
  - Tools and Parts Required for MX960 Router Connections
- play_arrow Installing Components
- play_arrow Replacing Chassis Components
- play_arrow Replacing Cooling System Component
  - Replacing the MX960 Air Filter
  - Replacing an MX960 Fan Tray
- play_arrow Replacing Host Subsystem Components
- play_arrow Replacing Line Card Components
- play_arrow Replacing Power System Components
- play_arrow Replacing and Upgrading Switch Control Boards
play_arrow Maintaining the Chassis and Components
- play_arrow Routine Maintenance Procedures
  - Routine Maintenance Procedures for the MX960 Router
- play_arrow Maintaining Components
- play_arrow Converting to a Different Type of Power Supply
  - Converting from AC to DC Power Supplies on an MX960 Router
  - Converting from DC to AC Power Supplies on an MX960 Router
play_arrow Troubleshooting Hardware
- play_arrow Knowledge Base
  - https://kb.juniper.net/
- play_arrow Troubleshooting Components
play_arrow Contacting Customer Support and Returning the Chassis or Components
- play_arrow Contacting Customer Support
  - Contact Customer Support
- play_arrow Locating Component Serial Numbers
- play_arrow Packing and Returning Components
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
  - Laser and LED Safety Guidelines and Warnings
  - Radiation from Open Port Apertures Warning
- play_arrow Maintenance and Operational Safety Guidelines and Warnings
  - Maintenance and Operational Safety Guidelines and Warnings
- play_arrow Electrical Safety Guidelines and Warnings
- play_arrow Agency Approvals and Compliance Statements

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English

MX960 Acoustic Cover Installation Instructions

date_range 09-Mar-21

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This document describes how to remove and replace the acoustic noise covers on a Juniper Networks MX960 Universal Routing Platform. The upper fan tray cover and interface module cover make up the acoustic noise components. The two acoustic covers are designed to reduce the system sound level to comply with the Network Equipment Building System (NEBS). The covers and all associated mounting hardware are available as an optional upgrade kit.

Tools required:

Number 2 Phillips screwdriver
7/16” wrench

Table 1: Parts List for Acoustic Noise Cover Kit
Component	Quantity
12–24 1 1/4 in. screws	4
12–24 nylon lock nuts	4
Star washer	1
Card cage cover mounting bracket	2
Upper fan tray cover	1
DPC Card cage cove	1

Installing the Upper Fan Tray Cover

The upper fan tray cover is installed below the craft interface and covers the upper fan tray. To install the upper fan tray cover, use the following procedure (see Figure 1).

Note:

The upper fan tray cover obstructs the existing electrostatic discharge (ESD) jack located above the upper fan tray on the front of the chassis. A second ESD jack is located on the lower rear of the chassis. An optional ESD jack has been provided in the installation kit and may be installed in an available rack mounting hole. Ensure that the mounting surface is conductive and free of paint. Secure the optional ESD jack with the star washer and nut provided in the installation kit.

Before placing the cover onto the router, rotate the latch knobs counterclockwise until they stop turning. This will ensure that the latch is open enough to hook behind the lip of the fan tray.
Place the cover over the upper fan tray.
Secure the lip of the cover in the groove directly below the craft interface.
Rotate the latch knobs clockwise, and hand tighten them until they are secure.
Figure 1: Upper Fan Tray Cover and Optional ESD Grounding Jack

Installing the Interface Module Cage Cover Center-Mount Brackets

The interface module cage cover is installed directly over the interface module cage. The installation of the brackets depends on whether the router is center or front mounted.

To install the center-mount brackets for the interface module cage cover on routers that are center mounted, use the following procedure (see Figure 2).

Locate the tab on the rear surface of the mounting bracket.
Place the rear surface of the bracket against the mounting flange. Vertical alignment is correct when the tab rests on top of the flange.
Locate the highest available mounting hole on the bracket and insert the first screw through the bracket and flange. Secure it with a nylock nut.
Locate the lowest available mounting hole on the bracket and insert the second screw through the bracket and flange. Secure it with a nylock nut.
Use a screwdriver and a wrench to hand tighten the screws and nylock nuts. Do not overtighten the screws. Overtightening may cause damage to the plastic bracket.
Repeat the above steps with the second bracket.

Figure 2: Installing the Interface Module Cage Cover

Installing the Interface Module Cage Cover Front-Mount Brackets

To install the brackets for the interface module cage cover on routers that are front-mounted, use the following procedure:

Locate the tab on the rear surface of the mounting bracket.
Place the rear surface of the bracket against the mounting flange. Vertical alignment is correct when the tab rests on top of the flange.
Locate the highest available mounting hole on the bracket and insert the first screw through the bracket and threaded rack flange.
Locate the lowest available mounting hole on the bracket and insert the second screw through the bracket and threaded rack flange.
Use a screwdriver to hand tighten the screw . Do not overtighten the screws; overtightening may cause damage to the plastic bracket.
Repeat the above steps with the second bracket.

Installing the Interface Module Cage Cover

To install the interface module cage cover, use the following procedure (see Figure 2).

Look through the front of the cover and align the four hooks on either side of the acoustic cover with the rail slots on the outside of the card cage.
Slide the cover into the rail slots.
Gently push the cover down to secure it in place.

Removing the Upper Fan Tray Cover

The upper fan tray cover is installed below the craft interface and covers the upper fan tray. To remove the upper fan tray cover, use the following procedure (see Figure 1).

Rotate the latch knobs counterclockwise until the cover is released or until the knobs stop turning.
Remove the cover.

Removing the Interface Module Cage Cover

To remove the interface module cage cover, use the following procedure (see Figure 3).

Press the cover catch release area marked with the instruction label on each side of the cover.
Slide the cover up until it stops; then pull the cover toward you to remove.
Figure 3: Removing the Interface Module Cage Cover

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MX960 Universal Routing Platform Hardware Guide

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