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ACX710 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.
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
If your site experiences any of the following problems, consult experts in electrical surge suppression and shielding:
Radio frequency interference
To reduce or eliminate RFI from your site wiring, do the following:
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:
Chassis Physical Specifications for ACX710 Routers
The ACX710 router chassis is a rigid sheet-metal structure that houses the hardware components. Table 2 summarizes the physical specifications of ACX710 routers and router components.
Table 2: Physical Specifications of an ACX710 Router
1.71 in. (43.6 mm)
17.43 in. (442.8 mm)
12.40 in.(315. mm)
1.73 in. (44 mm)
17.4 in. (442 mm)
2.36 in. (60 mm)
Environmental Requirements and Specifications for ACX710 Routers
The router must be installed in a rack or cabinet. It must be housed in a dry, clean, well-ventilated, and temperature-controlled environment.
Follow these environmental guidelines:
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, and the router temperature monitor might shut down the device to protect the hardware components.
Table 3 lists the environmental conditions required for normal router operation.
Table 3: ACX710 Router Environmental Tolerances
5% to 95% (non-condensing)
Nominal operating temperature
-40° C to 65° C (-40° F to 149° F)
Shipping and storage temperature
-40° C to 70° C (-40° F to 158° F)
Cold start temperature
-40° C (-40° F)
2 (IEC 60950)
Acoustic noise level
< 7.2 Bels (EN 300 753)
IP20 (IEC 60529)
GR-3108 Class 1 and Class 2
Complies with Zone 4 earthquake requirements per NEBS GR-63-CORE, Issue 4.
Install ACX Series devices only in restricted areas, such as dedicated equipment rooms and equipment closets, in accordance with Articles 110-16, 110-17, and 110-18 of the National Electrical Code, ANSI/NFPA 70.
ACX710 Grounding Cable and Lug Specifications
For installations that require a separate grounding conductor to the chassis, the router must be adequately grounded before power is connected to ensure proper operation and to meet safety and electromagnetic interference (EMI) requirements. To ground an ACX710 router, connect a grounding cable to earth ground, and then attach it to the chassis grounding points.
The router is pluggable type A equipment installed in a restricted-access location. It has a separate protective earthing terminal provided on the chassis in addition to the grounding pin of the power supply cord. This separate protective earthing terminal must be permanently connected to earth ground for installations that require a separate grounding conductor to the chassis.
To comply with GR-1089 requirements, all intra-building copper cabling used for SFP+ and QSFP+ ports must be shielded and grounded at both ends.
Before router installation begins, a licensed electrician must attach a cable lug to the grounding cables that you supply. A cable with an incorrectly attached lug can damage the router.
You must ensure that all cables are rated for the environment in which they are deployed.
For an ACX710 router, you need a grounding cable and straight lug with dual holes. You also need a dual-hole straight lug connector. The grounding lug accommodates 6 AWG (10 mm²), minimum 90° C wire, or as required by the local code.
Clearance Requirements for Hardware Maintenance of ACX710 Routers
When planning the site for installing an ACX710 router, you must allow sufficient clearance around the installed chassis (see Figure 1).
For the cooling system to function properly, the airflow around the chassis must be unrestricted. See Cooling System and Airflow in ACX710 Routers for more information about the airflow through the chassis.
If you are mounting an ACX710 router in a rack or cabinet with other equipment, ensure that the exhaust from other equipment does not blow into the intake vents of the chassis.
For service personnel to remove and install hardware components, and to accommodate the interface and power cable bend radius, there must be adequate space at the front and rear of the router. Allow at least 24 in. (61 cm) of space both at the front and the rear of the router.
Cabinet Requirements for ACX710 Routers
You can mount an ACX710 router in an enclosure or cabinet that contains a four-post 19-in. open rack as defined in Cabinets, Racks, Panels, and Associated Equipment (document number EIA-310-D) published by the Electronics Industry Association.
Table 4 provides the cabinet requirements and specifications for an ACX710 router.
Table 4: Cabinet Requirements for ACX710 Routers
Cabinet size and clearance
The minimum cabinet size for accommodating an ACX710 router is 19.5 in. (49.5 cm) deep. Large cabinets improve airflow and reduce the chance of overheating.
Cabinet airflow requirements
When you mount the router in a cabinet, ensure that ventilation through the cabinet is sufficient to prevent overheating.
Rack Requirements for ACX710 Routers
The ACX710 routers are designed to be installed on two or four-post racks.
Table 5 provides the rack requirements and specifications for ACX710 routers.
Table 5: Rack Requirements for ACX710 Routers
Use a four-post rack that provides bracket holes or hole patterns spaced at 1-U increments (1.75 in. or 4.45 cm), and ensure that the rack meets the size and strength requirements to support the weight of the router.
A U is the standard rack unit defined in Cabinets, Racks, Panels, and Associated Equipment (document number EIA-310–D) published by the Electronics Industry Association.
Mounting bracket hole spacing
Ensure that the holes in the mounting brackets 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
Rack connection to building structure