Fast Track to Rack Installation and Power
This procedure guides you through the steps to install the ACX5400 router in a rack and connect it to power.
Install the ACX5400 Router in the Rack
You can install a Juniper Networks® ACX5400 router into a 19-inch four-post rack or a cabinet. We’ll walk you through the steps to install an AC-powered ACX5400 router in a 19-inch four-post rack.
Before you install, review the following:
To install the router in a four-post rack or cabinet:
Connect to Power
To connect the ACX5400 router to AC power, perform the following steps:
Connect Earth Ground to ACX5400 Chassis
Before you connect earth ground to the protective earthing terminal of a ACX5400 router, ensure that a licensed electrician has attached an appropriate grounding lug to the grounding cable.
Figure 16, Figure 17, and Figure 18 show the grounding points on ACX5400 routers.
1 — Grounding points |
You need a protective earthing terminal bracket for connecting the chassis to earth ground. This two-holed bracket attaches on the side of the chassis through the mounting rail and provides a protective earthing terminal for the router. The grounding points are in the form of studs sized for #10–32 pan head screws. (You need to provide these screws with integrated washers as we do not ship them in the accessory kit). The grounding points are spaced at 0.63-in. (16-mm) centers.
You ground the router by connecting one end of a grounding cable to earth ground and then attaching the other end to the chassis grounding points by using two #10–32 pan head screws. You must provide the grounding cables.
The grounding lug required is a Panduit LCD10-10A-L or equivalent (not provided). The grounding lug accommodates 12 AWG (2.5 mm²) stranded wire. The grounding cable that you provide for the chassis must be the same size or heavier than the input wire of each power supply. Minimum recommendations are 12 AWG (2.5 mm²) stranded wire, 60° C wire for the ACX5448 router and 12 AWG (2.5 mm²), 90° C temperature-rated stranded wire for the ACX5448-D and ACX5448-M routers.
To ground the ACX5400 router:
Connect AC Power to an ACX5400 Router
Ensure that you have a power cord appropriate for your geographical location available to connect AC power to the router.
Before you begin connecting AC power to the router:
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Ensure that you have taken the necessary precautions to prevent electrostatic discharge (ESD) damage (see Prevention of Electrostatic Discharge Damage).
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Ensure that you have connected the router chassis to earth ground.
CAUTION:Before you connect power to the router, 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 (for example, by causing a short circuit).
To meet safety and electromagnetic interference (EMI) requirements and to ensure proper operation, you must connect the chassis to earth ground before you connect it to power. Under all circumstances, use the protective earthing terminal on the router chassis to connect to the earth ground. The router gains additional grounding when you plug the PSM in the router to a grounded AC power outlet by using the AC power cord appropriate for your geographical location.
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Install the PSM in the chassis.
The power supply module (PSM) in an ACX5400 router is a hot-removable and hot-insertable field-replaceable unit (FRU). You can remove and replace it without powering off the router or disrupting routing functions.
You must connect each PSM to a dedicated power source outlet.
To connect AC power to an ACX5448 router:
To connect AC power to ACX5448-D and ACX5448-M routers:
Wrap and fasten one end of the ESD grounding strap around your bare wrist, and connect the other end of the strap to the ESD point on the chassis.
Power off the AC input appliance inlet on the source power supply.
Connect the power cord to the source power supply.
Note:Each PSM must be connected to a dedicated AC power feed and a dedicated customer-site 2-pole circuit breaker. We recommend that you use a dedicated customer-site circuit breaker rated for 20 A (110 VAC) or 16 A (220 VAC) minimum, or as required by local code.
Push the power cord retainer onto the power cord.
Figure 24 shows the power cord retainer installed on the AC PSM for the ACX5448-D and ACX5448-M router and Figure 25 shows how to connect an AC power cord to an ACX5448-D or ACX5448-M router.
Figure 24: Power Cord Retainer Installed on the AC PSM for ACX5448-D and ACX5448-M
1—Input status LED
4—AC power cord retainer installed
2—Output status LED
5—Ejector lever
3—Fault LED
Figure 25: : Connect an AC Power Cord to an ACX5448-D or ACX5448-M router
Power on the power supply at source.


















