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ACX500 Site Guidelines and Requirements

General Site Guidelines

Efficient device operation requires proper site planning and maintenance and proper layout of the equipment, rack or cabinet, and wiring closet.

To plan and create an acceptable operating environment for your device 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 does not blow into the intake vents of the device.

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

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

Site Electrical Wiring Guidelines

Table 1 describes the factors you must consider while planning the electrical wiring at your site.

Warning:

You must provide a properly grounded and shielded environment and use electrical surge-suppression devices.

Avertissement Vous devez établir un environnement protégé et convenablement mis à la terre et utiliser des dispositifs de parasurtension.
Table 1: Site Electrical Wiring Guidelines

Site Wiring Factor

Guidelines

Signaling limitations

If your site experiences any of the following problems, consult experts in electrical surge suppression and shielding:

  • Improperly installed wires cause radio frequency interference (RFI).

  • Damage from lightning strikes occurs when wires exceed recommended distances or pass between buildings.

  • Electromagnetic pulses (EMPs) caused by lightning damage unshielded conductors and electronic devices.

Radio frequency interference

To reduce or eliminate RFI from your site wiring, do the following:

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

  • If you must exceed the recommended distances, use a high-quality twisted-pair cable with one ground conductor for each data signal, when applicable.

Electromagnetic compatibility

If your site is susceptible to problems with electromagnetic compatibility (EMC), particularly from lightning or radio transmitters, seek expert advice.

Some of the problems caused by strong sources of electromagnetic interference (EMI) are:

  • 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

Clearance Requirements for Airflow and Hardware Maintenance on ACX500 Routers

ACX500 Indoor Router Chassis Dimensions and Clearance Requirements

Prepare your site for installation by observing the following guidelines:

  • When planning the installation site, allow sufficient clearance around the rack. See Figure 1.

  • For service personnel to remove and install hardware components, allow at least 2.16 in. (5.5 cm) in front of the router.

  • The rack or cabinet must have an adequate supply of cooling air.

  • Ensure that the cabinet allows the chassis hot exhaust air to exit from the cabinet without recirculating into the router.

  • When deploying the router in harsh environments allow a 1–rack unit (U) gap above and below the router.

  • Ensure minimum 1 meter/second airflow in any direction.

Figure 1: ACX500 Indoor Router Chassis Dimensions and Clearance RequirementsACX500 Indoor Router Chassis Dimensions and Clearance Requirements

ACX500 Outdoor Router Chassis Dimensions and Clearance Requirements

Prepare your site for installation by observing the following guidelines:

  • When installing the ACX500 outdoor routers on a pole or on a wall, the chassis must be installed in a vertical orientation with the cables pointing downward and the eye bolt for hoisting the router pointing upward.

    Figure 2 and Figure 3 show the orientation of the ACX500 outdoor router after installation.

  • When choosing a location, allow at least 6 in. (15.2 cm) of clearance between the sides of the chassis (with the router in installed position) and adjacent equipment or walls. See Figure 2.

  • Ensure that the wall or the pole onto which the router is installed is stable and securely supported.

  • Ensure that the wall or pole is able to carry the load of the fully configured router.

  • If you are mounting the router in wallboard with a gypsum plaster core or in wallboard not backed by wall studs, use hollow wall anchors capable of supporting the combined weight of two fully loaded chassis. Insert the screws into wall studs wherever possible to provide added support for the chassis.

  • The width of the pole must be within the range of 2 in. through 16 in. for the pole-mounting brackets to fit properly.

  • To mount the router, use the pole-mounting kit or the wall-mounting kit from Juniper Networks.

  • One person must be available to lift the router while another secures the router.

  • For service personnel to remove and install hardware components, allow at least 24 in. (60.9 cm) on top of the router. See Figure 3.

Figure 2: ACX500 Outdoor Router Chassis Dimensions and Clearance Requirements—Front ViewACX500 Outdoor Router Chassis Dimensions and Clearance Requirements—Front View
Figure 3: ACX500 Outdoor Router Chassis Dimensions and Clearance Requirements—Top ViewACX500 Outdoor Router Chassis Dimensions and Clearance Requirements—Top View

ACX500 Outdoor Router with PoE Chassis Dimensions and Clearance Requirements

Prepare your site for installation by observing the following guidelines:

  • When installing the ACX500 outdoor routers on a pole or on a wall, the chassis must be installed in a vertical orientation with the cables pointing downward and the eye bolt for hoisting the router pointing upward.

    Figure 4 and Figure 5 show the orientation of the ACX500 outdoor router after installation.

  • When choosing a location, allow at least 6 in. (15.2 cm) of clearance between the sides of the chassis (with the router in installed position) and adjacent equipment or walls. See Figure 4.

  • Ensure that the wall or the pole onto which the router is installed is stable and securely supported.

  • Ensure that the wall or pole is able to carry the load of the fully configured router.

  • If you are mounting the router in wallboard with a gypsum plaster core or in wallboard not backed by wall studs, use hollow wall anchors capable of supporting the combined weight of two fully loaded chassis. Insert the screws into wall studs wherever possible to provide added support for the chassis.

  • The width of the pole must be within the range of 2 in. through 16 in. for the pole-mounting brackets to fit properly.

  • To mount the router, use the pole-mounting kit or the wall-mounting kit from Juniper Networks.

  • One person must be available to lift the router while another secures the router.

  • For service personnel to remove and install hardware components, allow at least 24 in. (60.9 cm) on top of the router. See Figure 5.

Figure 4: ACX500 Outdoor Router with PoE Chassis Dimensions and Clearance Requirements—Front ViewACX500 Outdoor Router with PoE Chassis Dimensions and Clearance Requirements—Front View
Figure 5: ACX500 Outdoor Router with PoE Chassis Dimensions and Clearance Requirements—Top ViewACX500 Outdoor Router with PoE Chassis Dimensions and Clearance Requirements—Top View

See Also

Chassis Physical Specifications for ACX500 Routers

The ACX500 router is a rigid sheet-metal structure that houses the hardware components. Table 2, Table 3, and Table 4 summarize the physical specifications of the ACX500 routers.

Table 2: Physical Specifications of the ACX500 Indoor Router Chassis

Description

Value

Height

1.75 in. (4.45 cm)

Width

  • 17.5 in. (44.5 cm)

  • 19 in. (48.2 cm) with mounting brackets attached

Depth

9.4 in. (24 cm)

Weight

8.6 lb (3.9 kg)
Table 3: Physical Specifications of the ACX500 Outdoor Router Chassis

Description

Value

Height

12.3 in. (31.24 cm)

Width

10 in. (25.4 cm)

Depth

4.3 in. (10.92 cm)

Weight

AC-powered: 18.2 lb (8.3 kg)

DC-powered: 17.5 lb (7.9 kg)
Table 4: Physical Specifications of the ACX500 Outdoor Router with PoE Chassis

Description

Value

Height

16 in. (40.64 cm)

Width

10 in. (25.4 cm)

Depth

4.7 in. (11.93 cm)

Weight

AC-powered: 18.7 lb (8.5 kg)

DC-powered: 18.6 lb (8.4 kg)

Table 5 summarize the weight of the pole-mounting kit and wall-mounting kit.

Table 5: Weight of the Mounting Kits

Description

Value

Pole-mounting kit

2.8 lb (1.3 kg)

Wall-mounting kit

2.8 lb (1.3 kg)

See Also

ACX500 Router Environmental Specifications

The ACX500 indoor router must be installed in a rack or cabinet housed in a dry, clean, well-ventilated, and temperature-controlled environment.

Ensure that the following environmental guidelines are followed for the ACX500 indoor router:

  • The site must be 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, leading to the router temperature monitor shutting down the router to protect the hardware components.

  • The rack or cabinet must have an adequate supply of cooling air. Allow a minimum of 1 meter/second of airflow over the ACX500 indoor router.

Note:

Depending on the ambient temperature, it might take up to 5 minutes for the router to heat up to the operating temperature.

Table 6 provides the required environmental conditions for normal operation of the ACX500 indoor and outdoor routers.

Table 6: Environmental Specifications

Description

Value

Altitude

No performance degradation up to 3,000 ft (914.4 m)

Relative humidity

Normal operation ensured in relative humidity range of 5% through 95%, noncondensing

Temperature

  • Harsh environment: –40°F (–40°C) through 149°F (65°C), de-rate 1°C for every 1000 ft

  • Central office environment: 23°F (–5°C) through 131°F (55°C)

  • ACX500 outdoor router with solar loading: 114.8°F (46°C)

Commercial grade SFP temperature

  • Harsh environment: 32°F (0°C) through 122°F (50°C)

  • Central office environment: 32°F (0°C) through 104°F (40°C)

Seismic

Designed to meet Telcordia Technologies Zone 4 earthquake requirements

Configuration

  • Harsh environment:

    • PoE Power:

      • PoE++: 65 W

      • PoE+: 35 W

      Note:

      Total power supported on the PoE ports of the ACX500 routers is 80W.

    • 1GB ports: Full traffic

    • SFP/RJ-45 ports: Full traffic

    • SFP: Industrial grade

  • Central office environment:

    • 1GB ports: Full traffic

    • SFP/RJ-45 ports: Full traffic

    • SFP: Industrial grade

ACX500 Router Grounding Specifications

Grounding Points Specifications

To meet safety and electromagnetic interference (EMI) requirements and to ensure proper operation, the router must be adequately grounded before power is connected. To ground the routers, you must connect a grounding cable to earth ground and then attach it to the chassis grounding points by using the two screws provided. Figure 6 shows the grounding points on the ACX500 indoor router, and Figure 7 shows the grounding points on the ACX500 outdoor router. The location of the grounding points for the ACX500 routers is the same for both the AC and the DC variants.

Two threaded holes are provided on the front of the router chassis for connecting the router to earth ground. The grounding points fit 0.5-inch-long SAE 10-32 screws (American). The grounding points are spaced at 0.625 in. (15.86 mm) centers.

You must install the ACX500 router in a restricted-access location and ensure that the chassis is always properly grounded. The ACX500 router has a two-hole protective grounding terminal provided on the chassis. See Figure 6 and Figure 7. We recommend that you use this protective grounding terminal as the preferred method for grounding the chassis regardless of the power supply configuration. However, if additional grounding methods are available, you can also use those methods. For example, you can use the grounding wire in the AC power cord or use the grounding terminal or lug on a DC power supply. This tested system meets or exceeds all applicable EMC regulatory requirements with the two-hole protective grounding terminal.

Figure 6: Grounding Points on the ACX500 Indoor Routers Grounding Points on the ACX500 Indoor Routers
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Grounding points
 
Note:

The location of the grounding points on the ACX500 is the same for both AC-powered and DC-powered models.
Figure 7: Grounding Points on the ACX500 Outdoor Router Grounding Points on the ACX500 Outdoor Router
Note:

The location of the grounding points on the ACX500 is the same for both AC-powered and DC-powered models. The grounding point is located just below the power appliance inlet.
Note:

  • All bare grounding connection points to the ACX500 router must be cleaned and coated with an antioxidant solution before grounding the router.

  • All surfaces on the ACX500 router that are unplated must be brought to a bright finish and treated with an antioxidant solution before connecting the router.

  • All nonconductive surfaces on the ACX500 must be removed from all threads and connection points to ensure electrical continuity.

  • All AC-powered and DC-powered ACX500 routers must be grounded.

Grounding Cable Lug Specifications

The grounding cable lug is used to secure the grounding cable to the grounding points on the ACX Series router chassis. The grounding cable lug attaches to the grounding cable (see Figure 8) and is secured to the router by two SAE 10–32 screws of length between 0.25 in. and 0.5 in. The grounding cable lug and screws are not supplied with the router.

Use grounding lug, Panduit LCD6-10A-L or equivalent for the ACX500 indoor router, and Panduit LCCF6-14A-L for the ACX500 outdoor router (not provided).

Figure 8: Grounding Cable LugGrounding Cable Lug
CAUTION:

Before router installation begins, a licensed electrician must attach a cable lug to the grounding and power cables that you supply. A cable with an incorrectly attached lug can damage the router.

Grounding Cable Specifications

You must provide one grounding cable that meets the following specifications: 6-AWG (13.3 mm2), minimum 90°C wire, or as required by the local code.

See Also