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MX10004 Site Preparation Overview

The following topics describe general site planning and preparation for sites with MX10004 routers. Specific topics include site specifications, environmental requirements, electrical and wiring requirements, rack requirements, and airflow requirements for optimal MX10004 router performance.

MX10004 General Site Guidelines

Efficient router operation requires proper site planning and maintenance. It also requires proper layout of the router, the rack or cabinet (if used) and the wiring closet.

To plan and create an acceptable operating environment for your router and prevent environmentally caused equipment failures:

  • Keep the area around the chassis free from dust and conductive material, such as metal flakes.

  • Follow prescribed airflow guidelines to ensure that the cooling system functions properly and that exhaust from other equipment doesn’t blow into the intake vents of the router.

  • Follow the prescribed electrostatic discharge (ESD) prevention procedures to prevent damage to the equipment. Static discharge can cause components to fail completely or intermittently over time.

  • Install the router in a secure area so that only authorized personnel can access the router.

MX10004 Site Preparation Checklist

The checklist in Table 1 summarizes the tasks you must perform to prepare a site for the MX10004 router.

Table 1: MX10004 Site Preparation Checklist

✓

Item or Task

For More Information

Environment  

□

Verify that environmental factors such as temperature and humidity are within router tolerances.

See MX10004 Environmental Requirements and Specifications.

Power  

□

Measure the distance between external power sources and the router installation site.

 

□

Calculate the power consumption and requirements.

See MX10004 Power Planning.

Rack  

□

Verify that your rack meets the minimum requirements for router installation.

See MX10004 Rack Requirements.

□

Plan rack location, including required space clearances for optimal airflow.

See MX10004 Clearance Requirements for Airflow and Hardware Maintenance.

□

Secure the rack to the floor and the building structure.

 

Cables  

□

Acquire cables and connectors:

  • Determine the number of cables needed based on your planned configuration.

  • Review the maximum distance allowed for each cable. Choose the cable length based on the distance between the hardware components to be connected.

The list of supported transceivers for the MX10004 line cards is located at https://apps.juniper.net/hct/product/#prd=MX10004.

□

Plan the cable routing and management.

  

MX10004 Environmental Requirements and Specifications

You must install the MX10004 router in a four-post rack. The router requires housing in a dry, clean, well-ventilated, and temperature-controlled environment.

Follow these environmental guidelines:

  • Ensure that the site is as dust free as possible, because dust can clog air intake vents and filters, reducing the efficiency of the router cooling system.

  • Maintain ambient airflow for normal router operation. If the airflow is blocked or restricted, or if the intake air is too warm, the router might overheat. If the router overheats, the router temperature monitor might shut down the router to protect the hardware components.

Environmental tolerances for altitude and operating temperature depend on:

  • The type of ESD front door installed—either the standard JNP10004-FRNT-PNL without an air filter or the JNP10004-FPNL1 with air filter that is available as a spare.

  • The wattage of the type of optics being used—either 14 W or 21 W optics.

  • The line card slot. Slot 0 has slightly different airflow and cooling.

Table 2: MX10004 Environmental Tolerances

Description

Tolerance

Altitude

No performance degradation up to 6000 feet (1829 meters).

Relative humidity

  • Normal operation ensured in a relative humidity range of 5% through 90%, noncondensing.

  • Short-term operation ensured in a relative humidity range of 5% through 93%, noncondensing.

    Note:

    As defined in NEBS GR-63-CORE, Issue 3: Short-term refers to a period of not more than 96 consecutive hours (four days) and not more than 360 hours (15 days) in 1 year.

Temperature

  • Normal operation ensured in temperature range of 32° F through 104° F (0° C through 40° C).

  • Nonoperating storage temperature in shipping container: -40° F through 158° F (-40° C through 70° C).

  • Short-term operation ensured in temperature range of 32° F through 131° F (0° C through 55° C) at 6000 ft altitude.

    Note:

    As defined in NEBS GR-63-CORE, Issue 3: Short-term refers to a period of not more than 96 consecutive hours (four days) and not more than 360 hours (15 days) in 1 year.
    Note:

    Short-term operation is applicable only to MX10K-LC480 line card in the MX10004 chassis.

Seismic zone

Designed to comply with Zone 4 earthquake requirements according to NEBS GR-63-CORE, Issue 3.
Note:

Install MX10004 routers only in restricted-access areas, such as dedicated equipment rooms and equipment closets. Install routers in accordance with Articles 110-16, 110-17, and 110-18 of the National Electrical Code, ANSI/NFPA 70.

MX10004 Site Electrical Wiring Guidelines

MX10004 Environmental Requirements and Specifications describes the factors you must consider while you plan the electrical wiring at your site.

CAUTION:

It is particularly important to provide a properly grounded and shielded environment and to use electrical surge-suppression devices.
Table 3: Site Electrical Wiring Guidelines

Site Wiring Factor

Guidelines

Signaling limitations

To ensure that signaling functions optimally:

  • Install wires correctly.

    Improperly installed wires can emit radio interference.

  • Observe the recommended distances, and avoid passing wires between buildings.

    The potential for damage from lightning strikes increases if wires exceed recommended distances or if wires pass between buildings.

  • Shield all conductors.

    The electromagnetic pulse (EMP) caused by lightning can damage unshielded conductors and destroy electronic devices.

Radio frequency interference (RFI)

To reduce or eliminate the emission of RFI from your site wiring:

  • Use a twisted-pair cable with a good distribution of grounding conductors.

  • Use a high-quality twisted-pair cable with one ground conductor for each data signal if you must exceed the recommended distances.

Electromagnetic compatibility (EMC)

Provide a properly grounded and shielded environment and use electrical surge-suppression devices.

Strong sources of electromagnetic interference (EMI) can cause the following damage:

  • Destruction of the signal drivers and receivers in the device

  • Electrical hazards as a result of power surges conducted over the lines into the equipment

Tip:

If your site is susceptible to problems with EMC, particularly from lightning or radio transmitters, you might want to seek expert advice.
Warning:

The intrabuilding port or ports of the equipment or subassembly are suitable for connection to intrabuilding or unexposed wiring or cabling only. The intrabuilding port or ports of the equipment or subassembly MUST NOT be metallically connected to interfaces that connect to the OSP or its wiring. These interfaces are designed for use as intrabuilding interfaces only (Type 2 or Type 4 ports as described in GR-1089-CORE). The interfaces require isolation from the exposed OSP cabling. The addition of primary protectors is not sufficient protection to connect these interfaces metallically to OSP wiring.

MX10004 Rack Requirements

The MX10004 router chassis is designed to be installed in four-post racks.

Rack requirements consist of:

  • Rack type.

  • Rack mount kit hole spacing.

  • Rack size and strength.

  • Rack connection to the building structure.

Table 4 provides the rack requirements and specifications for the MX10004.

Table 4: Rack Requirements for the MX10004

Rack Requirement

Guidelines

Rack type: four-post

Use a four-post rack that provides bracket holes or hole patterns spaced at 1-U (1.75 in. or 4.45 cm) increments and that meets the size and strength requirements to support the weight and seismic requirements. We recommend that you use a Telect DR1250-84436 rack or an equivalent rack.

A U is the standard rack unit defined in Cabinets, Racks, Panels, and Associated Equipment (document number EIA-310–D) published by the Electronics Industries Association (EIA).

You can mount up to six MX10004 routers in a four-post rack if:

  • The rack is 42 U or taller.

  • The rack meets the strength requirements to support the weight and seismic requirements.

  • The facility can provide adequate power and cooling.

Tip:

Always mount devices starting at the bottom of the rack.

Rack-mount kit hole spacing

The holes in the rack-mount kit are spaced at 1 U (1.75 in. or 4.45 cm) so that the router can be mounted in any rack that provides holes spaced at that distance.

Rack size and strength

  • Ensure that the rack complies with the standards for a 19-in. wide rack as defined in Cabinets, Racks, Panels, and Associated Equipment (document number EIA-310–D) published by the EIA.

  • Use one of the standard rack lengths as defined in the four-part Equipment Engineering (EE); European telecommunications standard for equipment practice (document numbers ETS 300 119-1 through 119-4) published by the European Telecommunications Standards Institute (ETSI) (http://www.etsi.org).

    • 23.62 in. (600 mm)

    • 30.0 in. (762 mm)

    • 31.5 in. (800 mm)

  • Ensure that the rack rails are spaced widely enough to accommodate the external dimensions of the router chassis. The outer edges of the flange extend the chassis width to 19 in. (48.26 cm).

  • Ensure that the rack is strong enough to support the weight of the router and cabling.

  • Ensure that the spacing of rails and adjacent racks allows for proper clearance around the router and rack. See MX10004 Clearance Requirements for Airflow and Hardware Maintenance.

Rack connection to building structure

  • Secure the rack to the building structure.

  • If earthquakes are a possibility in your geographical area, secure the rack to the floor.

  • Secure the rack to the ceiling and to the wall or floor for maximum stability.

MX10004 Clearance Requirements for Airflow and Hardware Maintenance

When you plan the site for an MX10004 router installation, you must allow sufficient clearance around the installed chassis for cooling and maintenance. See Figure 1 for a top view of clearance for the MX10004.

Figure 1: MX10004 Clearance Requirements MX10004 Clearance Requirements
Note:

For JNP10K-PWR-AC3 power supply, the overall depth is 36 in. (91.44 cm) instead of 34.2 in. and the power cable depth is 6 in. (15.24 cm) instead of 7 in.

Follow these guidelines:

  • For the cooling system to function properly, the airflow around the chassis must be unrestricted. See MX10004 Cooling System for more information about the airflow through the chassis.

  • If you plan to mount an MX10004 in a rack with other equipment, ensure that the exhaust from other equipment doesn’t blow into the intake vents of the chassis.

  • Leave at least 30 in. (76.2 cm) in front of the chassis and at least 24 in. (61 cm) behind the MX10004 so that service personnel can remove and install hardware components. To be NEBS GR-63 compliant, allow at least 30 in. (76.2 cm) in front of the rack and 24 in. (61 cm) behind the rack.