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EX9214 Power System

 

AC Power Supply in an EX9214 Switch

An EX9214 switch is configurable with two or four AC power supplies. The power supplies connect to the midplane, which distributes the different output voltages produced by the power supplies to the switch components, depending on their voltage requirements. Each power supply is cooled by its own internal cooling system.

Caution

EX9214 switches use either AC or DC power supplies. Do not mix AC and DC power supplies in a switch. The first type of power supply detected by the switch when it is initially powered on determines the type of power supply the switch will operate with. All installed power supplies of the other type are disabled by the switch. If you install a power supply of the other type while the switch is operating with one type of power supply, the switch disables the power supply you installed and generates an alarm.

This topic describes the AC power supplies in EX9214 switches.

AC Power Supply Description

The AC power supplies in EX9214 switches are hot-insertable and hot-removable field-replaceable units (FRUs).

You can install either two or four AC power supplies in an EX9214 switch. Power supplies are installed at the rear of the chassis in slots PEM0 through PEM3 (left to right). Four power supplies provide full redundancy.

Warning

The switch is installed in a restricted-access location. It has a separate protective earthing terminal (sized for UNC 1/4-20 ground lugs) 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.

Caution

Before switch installation begins, ensure that a licensed electrician has attached an appropriate grounding lug to the grounding cable that you supply. Using a grounding cable with an incorrectly attached lug can damage the switch.

Each AC power supply weighs approximately 11.9 lb (5.4 kg). The power supplies consist of an AC input switch and LEDs that indicate the status of the power supply. See Figure 1.

Figure 1: AC Power Supply in an EX9214 Switch
AC Power Supply
in an EX9214 Switch

EX9214 switches support 4100 W AC power supply. The AC power supply supports 200–240 VAC AC power configurations.

Each power supply has two power inlets: one located at the top of the power supply and another that requires a dedicated power feed, located directly above the power supply. We recommend that you use a customer site circuit breaker rated for 15.0 A @ 250 VAC circuit breaker minimum for each AC power supply, or one that complies with the local code. Doing so enables you to operate the switch in any configuration without upgrading the power infrastructure.

You can provide one or two feeds to the power supply. If you are using the power supply in one-feed mode, you must connect the power cord into the AC appliance inlet located on the chassis above the power supply. This is the recommended inlet when using the power supply in one-feed mode. If you are using the power supply in two-feed mode, you must connect another power cord to the AC appliance inlet on the power supply faceplate also.

AC Power Supply Configurations

EX9214 switches support two or four AC power supplies, installed vertically at the rear of the chassis in slots PEM0 through PEM3 (left to right), in two zones: power supplies in slots PEM0 and PEM2 provide power to the lower fan tray, line card slots 6 through 11, and SF slots 1 and 2; power supplies in slots PEM1 and PEM3 provide power to the upper fan tray, line card slots 0 through 5, and SF slot 0. There must be at least one power supply in each zone.

Four power supplies provide full redundancy. If a power supply in a redundant configuration is removed or fails, its redundant power supply takes over without interruption. The power supply in PEM2 serves as redundant power supply to the power supply in slot PEM0 and the power supply in PEM3 serves as redundant power supply to the power supply in slot PEM1. If only two power supplies are installed, they must be installed in slots PEM0 and PEM1 or in slots PEM2 and PEM3.

AC Power Cord Specifications for an EX9214 Switch

Each AC power supply has a single AC appliance inlet located on the power supply 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 switch. 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 switch. The C19 appliance coupler end of the cord inserts into the AC appliance inlet coupler, type C20 (right angle) as described by International Electrotechnical Commission (IEC) standard 60320. The plug end of the power cord fits into the power source receptacle that is standard for your geographical location.

Table 1 provides specifications and Figure 2 depicts the plug on the AC power cord provided for each country or region.

Table 1: AC Power Cord Specifications for an EX9214 Switch

Country

Electrical Specification

Plug Type

Australia

240 VAC, 50 Hz AC

SAA/3

China

220 VAC, 50 Hz AC

PSB-10

Europe (except Denmark, Italy, Switzerland, and United Kingdom)

220 or 230 VAC, 50 Hz AC

CEE 7/7

Italy

230 VAC, 50 Hz AC

CEI 23-16/VII

Japan

220 VAC, 50 or 60 Hz AC

NEMA L6-20P

North America

250 VAC, 60 Hz AC

NEMA L6-20P

United Kingdom

240 VAC, 50 Hz AC

BS89/13

Figure 2: AC Plug Types
AC Plug Types
Warning

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

Warning

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

Note

In North America, AC power cords must not exceed 4.5 m (approximately 14.75 ft) 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.

Warning

The switch is pluggable type A equipment installed in a restricted-access location. It has a separate protective earthing terminal (sized for UNC 1/4-20 ground lugs) 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.

Caution

Power cords must not block access to switch components. We recommend that you route all AC power cord cables through the power cord tray provided with the switch.

AC Power Supply Specifications for EX9214 Switches

Table 2 lists the power supply specifications for an AC power supply used in EX9214 switches.

Table 2: AC Power Supply Specifications for an EX9214 Switch

Item

Specifications

AC input voltage

Operating range: 200–240 VAC

AC input line frequency

50–60 Hz

AC input current rating

  • 26 A in two-feed mode (13 A per feed)

  • 13 A in one-feed mode

AC output power

  • 4100 W in two-feed mode

  • 1700 W in one-feed mode

Table 3 lists the AC power system specification for an EX9214 switch.

Table 3: AC Power System Specifications

Item

Base Configuration

Redundant Configuration

Redundancy

3+1

2+2

Output power (maximum) per power supply

4100 W in two-feed mode and 1700 W in one-feed mode

4100 W in two-feed mode and 1700 W in one-feed mode

Output power (maximum) per system

12300 W in two-feed mode and 5100 W in one-feed mode

8200 W in two-feed mode and 3400 W in one-feed mode

AC Power Supply LEDs in an EX9214 Switch

An AC power supply has four LEDs on its faceplate: AC-1 OK, AC-2 OK, DC OK, and PS FAIL LEDs. These LEDs display information about the status of the AC power supply. There are two LEDs on the craft interface that also display the power supply status. In addition, a power supply failure triggers the major alarm LED on the craft interface.

Table 4 describes the LEDs on an AC power supply in an EX9214 switch.

Table 4: AC Power Supply LEDs in EX9214 Switches

Feed Mode

Description

LEDs

AC-1 OK

AC-2 OK

DC OK

PS FAIL

One-Feed

The power input to the AC appliance inlet located on the chassis above the power supply is connected and the power input to the AC appliance inlet on the power supply faceplate is not connected; the input is within the acceptable range, and the power feed located on the chassis above the power supply is functioning normally and providing power to the switch chassis.

Green

Off

Green

Off

The power input to the AC appliance inlet on the power supply faceplate is connected and the power input to the AC appliance inlet located on the chassis above the power supply is not connected; the input is within the acceptable range, and the power feed located on the power supply faceplate is functioning normally and providing power to the switch chassis.

Off

Green

Green

Off

The power input to the AC appliance inlet located on the chassis above the power supply and the power input to the AC appliance inlet on the power supply faceplate are connected; the input is within the acceptable range, and the power feed located on the chassis above the power supply is functioning normally and providing power to the switch chassis.

Green

Green

Green

Off

Two-Feed

The power input to the AC appliance inlet located on the chassis above the power supply is connected and the power input to the AC appliance inlet on the power supply faceplate is not connected; the input is within the acceptable range, but the power supply is not functioning normally and is not providing power to the switch chassis.

Green

Off

Off

Red

The power input to the AC appliance inlet on the power supply faceplate is connected and the power input to the AC appliance inlet located on the chassis above the power supply is not connected; the input is within the acceptable range, but the power supply is not functioning normally and is not providing power to the switch chassis.

Off

Green

Off

Red

The power input to the AC appliance inlet located on the chassis above the power supply and the power input to the AC appliance inlet on the power supply faceplate are connected; the inputs are within the acceptable ranges and the power supply is functioning normally and providing power to the switch chassis.

Green

Green

Green

Off

DC Power Supply in an EX9214 Switch

An EX9214 switch is configurable with four DC power supplies. The power supplies connect to the midplane, which distributes the different output voltages produced by the power supplies to the switch components, depending on their voltage requirements. Each power supply is cooled by its own internal cooling system.

Caution

EX9214 switches use either AC or DC power supplies. Do not mix AC and DC power supplies in a switch. The first type of power supply detected by the switch when it is initially powered on determines the type of power supply the switch will operate with. All installed power supplies of the other type are disabled by the switch. If you install a power supply of the other type while the switch is operating with one type of power supply, the switch disables the power supply you installed and generates an alarm.

This topic describes the DC power supplies in EX9214 switches.

DC Power Supply Description

The DC power supplies in EX9214 switches are hot-insertable and hot-removable field-replaceable units (FRUs).

You can install four DC power supplies in an EX9214 switch. Power supplies are installed at the rear of the chassis in slots PEM0 through PEM3 (left to right). Four power supplies provide full redundancy.

Each DC power supply weighs approximately 15.8 lb (7.2 kg) and has two DC inputs (–48 VDC and return), each of which requires a dedicated circuit breaker and LEDs to monitor the status of the power supply.

See Figure 3.

Figure 3: DC Power Supply in an EX9214 Switch
DC Power Supply
in an EX9214 Switch

Each power supply has two power inlets: one located at the top of the power supply and another that requires a dedicated power feed, located directly above the power supply. If you plan to operate a maximally configured DC-powered switch, we recommend that you use a dedicated customer site circuit breaker rated for 208 A (104 A per supply) (–40 VDC) minimum, or one that complies with the by local code.

If you plan to operate a DC-powered switch at less than the maximum configuration, we recommend that you provision a circuit breaker according to respective National Electrical Code and customer site internal standards to maintain proper level of protection for the current specified above or each DC power supply rated for at least 125% of the continuous current that the system draws at –40 VDC.

DC Power Supply Configurations

EX9214 switches support four DC power supplies, installed vertically at the rear of the chassis in slots PEM0 through PEM3 (left to right), in two zones: power supplies in slots PEM0 and PEM2 provide power to the lower fan tray, line card slots 6 through 11, and SF slots 1 and 2; power supplies in slots PEM1 and PEM3 provide power to the upper fan tray, line card slots 0 through 5, and SF slot 0. There must be at least one power supply in each zone.

Four power supplies provide full redundancy. If a power supply in a redundant configuration is removed or fails, its redundant power supply takes over without interruption. The power supply in PEM2 serves as redundant power supply to the power supply in slot PEM0 and the power supply in PEM3 serves as redundant power supply to the power supply in slot PEM1.

DC Power Supply Specifications for EX9214 Switches

Table 5 lists the DC power supply specifications for EX9214 switches.

Table 5: DC Power Supply Specifications for an EX9214 Switch

Item

Specifications

Maximum output power

  • 4100 W in two-feed mode

  • 1700 W in one-feed mode

DC input voltage

  • Nominal operating range: –48 VDC

  • Operating voltage range: –40 VDC to –72 VDC

DC nominal input current rating @ 48 VDC

  • 104 A for both feeds (54 A and 50 A per feed) in two-feed mode

  • 42 A in one-feed mode

Maximum input current rating @ 40 VDC input voltage

  • 128 A for both feeds (66 A and 62 A per feed) in two-feed mode

  • 52 A in one-feed mode

Table 6 lists the power system specifications for EX9214 switches.

Table 6: DC Power System Specifications

Item

Redundant Configuration

Redundancy

2+2

Output power (maximum) per power supply

4100 W in two-feed mode and 1700 W in one-feed mode

Output power (maximum) per system

8200 W in two-feed mode and 3400 W in one-feed mode

DC Power Supply LEDs in an EX9214 Switch

A DC power supply has three LEDs on its faceplate: POWER OK, BRKR ON, and INPUT OK LEDs. These LEDs display information about the status of the DC power supply. There are two LEDs on the craft interface that also display the power supply status. In addition, a power supply failure triggers the major alarm LED on the craft interface.

Note

A host subsystem must be installed for the POWER OK LED to be on.

Table 7 describes the LEDs on a DC power supply in EX9214 switches.

Table 7: DC Power Supply LEDs in EX9214 Switches

Feed Mode

Description

LEDs

INP0 OK

INP1 OK

DC OK

PS FAIL

One-Feed

The power input to the INP-0 DC power inlet located on the power supply is connected and the power input to the INP-1 DC power inlet located on the power supply is not connected; the input is within the acceptable range, and the INP-0 is functioning normally and providing power to the switch chassis.

Green

Off

Green

Off

The power input to the INP-1 DC power inlet located on the power supply is connected and the power input to the INP-0 DC power inlet located on the power supply is not connected; the input is within the acceptable range, and the INP-1 is functioning normally and providing power to the switch chassis.

Off

Green

Green

Off

The power inputs to the INP-0 and INP-1 DC power inlets located on the power supply are connected; the input is within the acceptable range, and the INP-0 is functioning normally and providing power to the switch chassis.

Green

Green

Green

Off

Two-Feed

The power input to the INP-0 DC power inlet located on the power supply is connected and the power input to the INP-1 DC power inlet located on the power supply is not connected; the input is within the acceptable range, but the power supply is functioning normally and is not providing power to the switch chassis.

Green

Off

Off

Red

The power input to the INP-1 DC power inlet located on the power supply is connected and the power input to the INP-0 DC power inlet located on the power supply is not connected; the input is within the acceptable range, but the power supply is not functioning normally and is not providing power to the switch chassis.

Off

Green

Off

Red

The power inputs to the INP-0 and INP-1 DC power inlets located on the power supply are connected; the inputs are within the acceptable ranges and the power supply is functioning normally and providing power to the switch chassis.

Green

Green

Green

Off

Power Requirements for EX9200 Switch Components

Table 8 lists the power requirements for different hardware components of EX9200 switches.

Table 8: EX9200 Switch Component Power Requirements

Component

Typical Power (watt)

Reserved Power (watt)

Base system

  • EX9204 switch: 410 W

  • EX9208 switch: 560 W

  • EX9214 switch: 1290 W

  • EX9204 switch: 410 W

  • EX9208 switch: 560 W

  • EX9214 switch: 1670 W

Redundant system

  • EX9204 switch: 690 W

  • EX9208 switch: 800 W

  • EX9214 switch: 1530 W

  • EX9204 switch: 690 W

  • EX9208 switch: 800 W

  • EX9214 switch: 1910 W

EX9200-SF Switch Fabric module

150 W

150 W

EX9200-SF2 Switch Fabric module

155 W

155 W

EX9200-SF3 Switch Fabric module

See EX9200-SF3 Module in an EX9200 Switch

Routing Engine module (RE module)

90 W

90 W

EX9200-2C-8XS line card

530 W

610 W

EX9200-4QS line card

408 W

520 W

EX9200-6QS line card

511 W

607 W

EX9200-MPC line card

461 W

534 W

EX9200-10XS-MIC

29.8 W

29.8 W

EX9200-20F-MIC

37 W

37 W

EX9200-40T-MIC

41 W

41 W

EX9200-12QS line card

465 W

545 W

EX9200-15C line card

See EX9200-15C Line Card

EX9200-32XS line card

550 W

610 W

EX9200-40T line card

206 W

239 W

EX9200-40F line card

219 W

239 W

EX9200-40F-M line card

219 W

239 W

EX9200-40XS line card

465 W

545 W