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ACX4000 Power System

ACX4000 Power Overview

The ACX4000 router uses either AC or DC power supplies (see Figure 1 and Figure 2). The power supplies are located in the front of the chassis and offer 1+1 redundancy. The power supply slots are labeled PS 0 and PS 1. Each power supply has a handle, an ejection tab, and a status LED.

CAUTION:

The router cannot be powered from AC and DC power supplies simultaneously.

When two power supplies are present, they share power almost equally within a fully populated system. If one power supply in a redundant configuration fails or is removed, the remaining power supply assumes the entire electrical load without interruption. A single power supply provides the maximum configuration with full power for as long as the router is operational. A second power supply can be installed for redundancy. Each power supply is cooled by its own internal cooling system.

Redundant power supplies are hot-removable and hot-insertable. When you remove a power supply from a router that uses only one power supply, the router might shut down depending on your configuration.

AC Power Supplies

Each AC power supply weighs approximately 2.6 lb (1.18 kg) and consists of a handle, an ejection tab, an AC appliance inlet, a fan, and an LED to monitor the status of the power supply. Figure 1 shows the power supply.

Each inlet requires a dedicated AC power feed and a dedicated customer site circuit breaker. We recommend that you use a dedicated customer site circuit breaker rated for 17 A (100 VAC), or as required by local code.

Figure 1: AC Power Supply AC Power Supply
Warning:

The router is pluggable type A equipment installed in a restricted-access location. It has a separate protective earthing terminal (sized for SAE 10-32 ground screws) 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.

DC Power Supplies

Each DC power supply has a handle, an ejection lever, a status LED, and a terminal block that provides a single DC input (24, –48, or –60 VDC and return) that requires a dedicated customer site circuit breaker. We recommend that you provide at least 17 A @ 24 VDC and use a facility circuit breaker rated for 16.5 A minimum, or as required by local code. Figure 2 shows the power supply.

Figure 2: DC Power Supply DC Power Supply

ACX4000 Power Consumption

The power supply in an ACX4000 router is built along the front panel of the chassis, with a DC power terminal on the front to connect power to the router.

Table 1 lists the power consumed by the ACX4000 router.

Table 1: Power Consumed by ACX4000 Routers

Description

Value

Maximum consumed by the router

96 W

Maximum consumed by the router when no PoE power is drawn

96.6 W

Number of PoE ports available

2

Maximum PoE power available

65 W per port

ACX4000 AC Power Specifications

Table 2 lists the AC power system electrical specifications.

Table 2: AC Power System Electrical Specifications

Item

Specification

AC input voltage

Operating range: 90 to 264 VAC

AC input line frequency

47 to 63 Hz (nominal)

AC system current rating

4.5 A maximum per inlet at 100 VAC

AC system input power

435 W

Maximum AC power supply output power

200 W @ 12V power rail

170 W @ 54V (PoE) power rail

Note:

We recommend that you provide 4.5 A maximum per inlet at 100 VAC and use a facility circuit breaker rated for 4 A minimum. Doing so enables you to operate the router in any configuration without upgrading the power infrastructure, and allows the router to function at full capacity using multiple power supplies.

ACX4000 AC Power Cord Specifications

Each AC power supply has a single AC appliance inlet that requires a dedicated AC power feed. Most sites distribute power through a main conduit that leads to frame-mounted power distribution panels, one of which can be located at the top of the rack that houses the router. An AC power cord connects each power supply to the power distribution panel.

You can order detachable AC power cords, each approximately 8 ft (2.5 m) long that supply AC power to the router. The C15 appliance coupler end of the cord, as described by International Electrotechnical Commission (IEC) standard 60320, inserts into the AC appliance inlet coupler. The plug end of the power cord fits into the power source receptacle that is standard for your geographic location.

Table 3 provides specifications on the AC power cord provided for each country or region.

Table 3: AC Power Cord Specifications

Country

Model Number

Electrical Specification

Plug Type

Design Standard

Australia

 CBL-GP-C15-AU

250 VAC, 10 A, 50 Hz

SAA/3

AS/NZZS 3112-2000

China

 CBL-GP-C15-CH

250 VAC, 10 A, 50 Hz

PRC/3

GB2099, GB1002

Europe (except Italy, Switzerland, and United Kingdom)

 CBL-GP-C15-EU

250 VAC, 10 A, 50 Hz

VIIG

CEE (7) VII

Italy

 CBL-GP-C15-IT

250 VAC, 10 A, 50 Hz

I/3G

CEI 23–16

Japan

 CBL-GP-C15-JP

125 VAC, 15 A, 50 Hz or 60 Hz

498GJ

JIS 8303

Korea

 CBL-GP-C15-KR

250 VAC, 10 A, 50 Hz

VIIG

CEE (7) VII

Switzerland

 CBL-GP-C15-SZ

250 VAC, 10 A, 50 Hz

12G

SEV 1011 / 6534-2

North America

 CBL-GP-C15-US

125 VAC, 13 A, 60 Hz

498G

NEMA 5-15

United Kingdom

 CBL-GP-C15-UK

250 VAC, 10 A, 50 Hz

BS89/13

BS 1363/A

Warning:

The AC power cord for the router is intended for use with the router only and not for any other use.

Warning:

The attached power cable is only for this product. Do not use the cable for another product. Translation in Japanese follows:

Note:

In North America, AC power cords must not exceed approximately 14.75 ft (4.5 m) in length, to comply with National Electrical Code (NEC) Sections 400-8 (NFPA 75, 5-2.2) and 210-52, and Canadian Electrical Code (CEC) Section 4-010(3). You can order AC power cords that are in compliance.

CAUTION:

Power cords and cables must not block access to device components or drape where people could trip on them.

ACX4000 DC Power Specifications

The power supply in ACX4000 routers is built in along the front left panel of the chassis with DC power terminals to connect power to the router.

The ACX4000 router supports a wide range of voltage ranges as shown in Table 4.

Table 4: DC Power Electrical Specifications

Item

Specification

DC input voltages

  • 18 to 30 VDC

  • –39 to –56 VDC

  • –39 to –72 VDC

DC input currents

  • 16.1 A @ 24 VDC

  • 8.03 A @ –48 VDC

  • 6.42 A @ –60 VDC

Power supply output

385 W

PoE output

65 W per port at 54 V

Note:

We recommend that you provide at least 17 A @ 24 VDC and use a facility circuit breaker rated for 16.5 A minimum. Doing so enables you to operate the router in any configuration without upgrading the power infrastructure, and allows the router to function at full capacity using multiple power supplies.

ACX4000 DC Power Cable and Lug Specifications

DC Power Cable Lug Specifications

Use cable lugs with the specifications shown in Figure 3 to attach each DC power cable to the DC power supply.

Figure 3: DC Power Cable LugDC Power 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.

DC Power Cable Specifications

You must supply two DC power cables for each DC power supply that meet the following specifications: 14-AWG (2.08 mm2), minimum 60° C wire, or as required by the local code.

ACX4000 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 AC-powered and DC-powered routers, you must connect a grounding cable to earth ground and then attach it to the chassis grounding points using two paint-piercing washers and two screws (not provided) (see Figure 4).

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 ACX4000 in a restricted-access location and ensure that the chassis is always properly grounded. The ACX4000 has a two-hole protective grounding terminal provided on the chassis. See Figure 4. 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 4: Grounding Points on the ACX4000 Routers Grounding Points on the ACX4000 Routers
Note:

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

Note:

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

Note:

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

Grounding Cable Lug Specifications

The grounding cable lug is used to secure the grounding cable to the grounding points on the ACX chassis. The grounding cable lug attaches to the grounding cable (see Figure 5) and is secured to the router by two 0.5-inch-long SAE 10–32 screws. We recommend using paint-piercing washers between the grounding lug and the screws. The grounding cable lug, screws, and washers are not supplied with the router.

Figure 5: 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.

CAUTION:

The maximum torque rating of the grounding screws on the router is 4.34 lb-in. (0.49 Nm). The grounding screws may be damaged if excessive torque is applied. Use only a torque-controlled driver to tighten screws. Use an appropriately sized driver, with a maximum torque capacity of 5 lb-in. or less. Ensure that the driver is undamaged and properly calibrated and that you have been trained in its use. You may wish to use a driver that is designed to prevent overtorque when the preset torque level is achieved.

Grounding Cable Specifications

You must provide one grounding cable that meets the following specifications: 6-AWG (4.11 mm2), minimum 90°C wire, or as required by the local code.