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RPS Power System

 

Power Supply in an EX Series Redundant Power System

The Redundant Power System (RPS) itself has no power outlet—it derives power from installed EX-PWR3-930-AC power supplies. The RPS accommodates up to three hot-insertable and hot-removable field-replaceable unit (FRU) power supplies to provide enough power to switches that need to support either power over Ethernet (PoE) or non-PoE backup power to devices. By default, one RPS power supply is set to power one switch with enough power to either support one PoE switch, which requires more power or one non-PoE switch that requires less power. You can modify this configuration so that an RPS supplies non-PoE power to two switches per power supply with the command request redundant-power-system multi-backup. Keep in mind that this setting applies to all power from the RPS—you cannot configure an individual power supply.

Caution

The RPS operates only when a power supply is present in the middle slot.

Each EX-PWR3-930-AC power supply has an internal fan and two LEDs—AC OK and DC OK. AC indicates the status of power input from the electrical outlet and DC indicates the status of power output to a switch.

Figure 1 shows the EX-PWR3-930-AC power supply supported by RPS. Other power supplies may look similar, but only the EX-PWR3-930-AC power supply is supported.

Figure 1: EX-PWR3-930-AC Power Supply in a Redundant Power System
EX-PWR3-930-AC Power
Supply in a Redundant Power System
Warning

To prevent electrical injuries, follow instructions in Installing a Power Supply in the EX Series Redundant Power System and Removing a Power Supply from the EX Series RPS carefully.

Power Supply LEDs in an EX Series Redundant Power System

Each RPS power supply has two LEDs.

Table 1 describes the status of LEDs on the RPS power supply.

Table 1: Power Supply LEDs in a Redundant Power System

LED

State and Description

AC OK

  • Off—Power is not currently being input into this RPS power supply.

  • On—Power is currently being input into this RPS power supply.

DC OK

  • Off—There is no power being output to a connected switch at this time.

  • On—Power is now being output to a connected switch.

Power Specifications for the EX Series Redundant Power System

Table 2 describes the power supply electrical specifications for the EX-PWR3-930-AC power supplies of a Redundant Power System (RPS).

Table 2: AC Power Supply Electrical Specifications for an RPS Power Supply

Item

Specification

AC input voltage

100 through 240 VAC

AC input line frequency

50 through 60 Hz

AC system current rating

930 W (for each installed RPS power supply)

Power supply output (DC)

  • 12V for system and logic power

  • -48V to -51V for Power over Ethernet ( PoE)

AC Power Cord Specifications for the EX Series Redundant Power System

A detachable AC power cord is supplied with the AC power supplies. The coupler is type C13 as described by International Electrotechnical Commission (IEC) standard 60320. The plug at the male end of the power cord fits into the power source outlet that is standard for your geographical location.

Caution

The AC power cord provided with each power supply is intended for use with that power supply only and not for any other use.

Note

In North America, AC power cords must not exceed 4.5 meters 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). The cords supplied with the switch are in compliance.

Table 3 gives the AC power cord specifications for the countries and regions listed in the table.

Table 3: AC Power Cord Specifications

Country/Region

Electrical Specifications

Plug Standards

Juniper Model Number

Argentina

250 VAC, 10 A, 50 Hz

IRAM 2073 Type RA/3

CBL-EX-PWR-C13-AR

Australia

250 VAC, 10 A, 50 Hz

AS/NZZS 3112 Type SAA/3

CBL-EX-PWR-C13-AU

Brazil

250 VAC, 10 A, 50 Hz

NBR 14136 Type BR/3

CBL-EX-PWR-C13-BR

China

250 VAC, 10 A, 50 Hz

GB 1002-1996 Type PRC/3

CBL-EX-PWR-C13-CH

Europe (except Italy, Switzerland, and United Kingdom)

250 VAC, 10 A, 50 Hz

CEE (7) VII Type VIIG

CBL-EX-PWR-C13-EU

India

250 VAC, 10 A, 50 Hz

IS 1293 Type IND/3

CBL-EX-PWR-C13-IN

Israel

250 VAC, 10 A, 50 Hz

SI 32/1971 Type IL/3G

CBL-EX-PWR-C13-IL

Italy

250 VAC, 10 A, 50 Hz

CEI 23-16 Type I/3G

CBL-EX-PWR-C13-IT

Japan

125 VAC, 12 A, 50 Hz or 60 Hz

SS-00259 Type VCTF

CBL-EX-PWR-C13-JP

Korea

250 VAC, 10 A, 50 Hz or 60 Hz

CEE (7) VII Type VIIGK

CBL-EX-PWR-C13-KR

North America

125 VAC, 13 A, 60 Hz

NEMA 5-15 Type N5-15

CBL-EX-PWR-C13-US

South Africa

250 VAC, 10 A, 50 Hz

SABS 164/1:1992 Type ZA/13

CBL-EX-PWR-C13-SA

Switzerland

250 VAC, 10 A, 50 Hz

SEV 6534-2 Type 12G

CBL-EX-PWR-C13-SZ

Taiwan

125 VAC, 11 A and 15 A, 50 Hz

NEMA 5-15P Type N5-15P

CBL-EX-PWR-C13-TW

United Kingdom

250 VAC, 10 A, 50 Hz

BS 1363/A Type BS89/13

CBL-EX-PWR-C13-UK

Figure 2 illustrates the plug on the power cord for some of the countries or regions listed in Table 3.

Figure 2: AC Plug Types
AC Plug Types