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PTX1000 Power System

 

PTX1000 AC Power Supply Description

The AC power supplies in the PTX1000 (see Figure 1 and Figure 2) are hot-removable, and hot-insertable field-replaceable units (FRUs) that you can install without powering off the router or disrupting the routing function. The PTX1000 has four power supplies.

Caution

Do not mix AC and DC power supplies in the same chassis.

Figure 1: PTX1000 FRU Panel
PTX1000 FRU Panel
  1
Power supplies (4)
  2
Fan modules (3)
Figure 2: AC Power Supply in a PTX1000
AC Power Supply in a PTX1000
  1
Male power connector
  3
Ejector lever
  2
Status LED
  4
Handle

Each of the 1600-W power supplies has a single AC input. The power supply provides 12-VDC output with a standby voltage of 12 VDC. A PTX1000 provides for twice the number of power supplies needed to power all of the components in the device, which is known as 2N redundancy. When the PTX1000 has all four power supplies installed and connected to power, the router has full power redundancy. If a power supply fails or is removed, another power supply balances the electrical load without interruption.

The fan in the power supply provides port-to-FRU airflow, which is also known as airflow out (AFO). A power supply with the label AFO or a gold-colored handle denotes port-to-FRU airflow.

Caution

To avoid electrical injury, carefully follow instructions in Connecting AC Power to the PTX1000, Installing a Power Supply in a PTX1000, and Removing a Power Supply from the PTX1000.

Note

For more information about power system redundancy, see PTX1000 Component Redundancy.

PTX1000 DC Power Supply Description

The DC power supplies in the PTX1000 (see Figure 3 and Figure 4) are hot-removable and hot-insertable field-replaceable units (FRUs) that you can install without powering off the router or disrupting the routing function. The PTX1000 has four power supplies.

Caution

Do not mix AC and DC power supplies in the same chassis.

Figure 3: PTX1000 FRU Panel
PTX1000 FRU Panel
  1
Power supplies (4)
  2
Fan modules (3)
Figure 4: DC Power Supply in a PTX1000
DC Power Supply in a PTX1000
  1
Status LED
  3
Handle
  2
Ejector lever
 

Each of the four 1600-W power supplies has a single DC input. The power supply provides 12-VDC output with a standby voltage of 12 VDC. A PTX1000 provides for twice the number of power supplies needed to power all of the components in the router, which is known as 2N redundancy. When the PTX1000 has all four power supplies installed and connected to power, the router has full power redundancy. If a power supply fails or is removed, another power supply balances the electrical load without interruption.

The fan in the power supply provides port-to-FRU airflow, which is also known as airflow out (AFO). A power supply with the label AFO or a gold-colored handle denotes port-to-FRU airflow.

Caution

To avoid electrical injury, carefully follow instructions in Connecting DC Power to the PTX1000, Installing a Power Supply in a PTX1000, and Removing a Power Supply from the PTX1000.

Note

We recommend that the 48-VDC facility DC source be equipped with a circuit breaker rated at 40 A (–48 VDC) minimum, or as required by local code.

Note

For more information about power system redundancy, see PTX1000 Component Redundancy.

PTX1000 Power Supply LEDs

Each PTX1000 power supply has a status LED on the power supply faceplate. Figure 5 shows the location of the LED on a PTX1000 AC power supply and Figure 6 shows the location of the LED on a PTX1000 DC power supply.

Figure 5: AC Power Supply LED on a PTX1000
AC Power Supply LED on
a PTX1000
  1
Status LED
 
Figure 6: DC Power Supply LED on a PTX1000
DC Power Supply LED on
a PTX1000
  1
Status LED
 

Use Table 1 to interpret the state of the power supply LED.

Table 1: PTX1000 Power Supply LED

Name

Color

State

Description

Status

Unlit

Off

There is no power to any of the power supplies.

Green

On steadily

The power supply is on and operating correctly.

Slow blinking (1 Hz)

The power supply is in cold standby mode; only the 12 VDC input is present.

Blinking (2 Hz)

The power supply is uploading firmware.

Amber

On steadily

Either the power cord is unplugged or a major error is detected in the power supply. Examples of a major error are power supply failure, overvoltage protection error, overcurrent protection error, a fan failure.

  • If the power cord is unplugged or missing, reattach the power cord appropriate for your country.

  • If a major error is occurring, replace the power supply as soon as possible. To maintain proper airflow through the chassis, leave the power supply installed in the chassis until you are ready to replace it.

Blinking

Warning events are being detected; the power supply continues to operate. Often these events are because of rising temperatures. Check the fan modules and the fans in the power supplies and ensure there is proper airflow through the chassis.

PTX1000 AC Power Specifications

Table 2 describes the AC power specifications for a PTX1000.

Table 2: PTX1000 AC Power Specifications

Item

Specifications

AC input voltage

Operating range: 100–240 VAC

AC input line frequency

50–60 Hz

AC input current rating

14 A at 100–120 VAC

Typical power consumption

1050 W

Maximum power consumption

1425 W

PTX1000 AC Power Cord Specifications

Detachable AC power cords are shipped with the chassis if you include them as part of your order. 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.

Note

In North America, AC power cords must not exceed 14.75 feet (approximately 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 that can be ordered for the PTX1000 are in compliance.

Table 3 lists AC power cord specifications provided for each country or region.

Table 3: PTX1000 AC Power Cord Specifications

Country/Region

Electrical Specifications

Plug Standards

Juniper Model Number

Graphic

Australia

250 VAC, 10 A, 50 Hz

AS/NZ 3109-1996

CBL-EX-PWR-C13-AU

China

250 VAC, 10 A, 50 Hz

GB 1002-1996

CBL-EX-PWR-C13-CH

Europe (except Italy, Switzerland, and United Kingdom)

250 VAC, 10 A, 50 Hz

CEE (7) VII

CBL-EX-PWR-C13-EU

Italy

250 VAC, 10 A, 50 Hz

CEI 23-16/VII

CBL-EX-PWR-C13-IT

Japan

125 VAC, 12 A, 50 Hz or 60 Hz

JIS C8303

CBL-EX-PWR-C13-JP

North America

125 VAC, 13 A, 60 Hz

CAN/CSA No. 49-92

CBL-EX-PWR-C13-US

South Korea

250 VAC, 10 A, 60 Hz

KSC 8305; K60884-1

CBL-EX-PWR-C13-KR

Switzerland

250 VAC, 10 A, 50 Hz

SEV 1011 SEV 1991; EN 60320 C13

CBL-EX-PWR-C13-SZ

United Kingdom

250 VAC, 10 A, 50 Hz

BS 1363/A

CBL-EX-PWR-C13-UK

PTX1000 DC Power Specifications

Table 4 describes the DC power specifications for a PTX1000.

Note

We recommend that the 48-VDC facility DC source be equipped with a circuit breaker rated at 40 A (–48 VDC) minimum, or as required by local code.

Table 4: PTX1000 DC Power Specifications

Item

Specifications

DC input voltage

  • Rated operating voltage: –48 VDC through –60 VDC

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

DC input current rating

40 A maximum

Typical power consumption

1050 W

Maximum power consumption

1425 W

PTX1000 DC Power Cable Specifications

PTX1000 DC power supplies require a D-Sub 3W3- type connector. The three pins on the connector provide –48 VDC input (–), return (+), and ground connections to the power supply.

Note

The optional right-angle DC power cables, CBL-JNP-PWR-DSUB2 and CBL-JNP-PWR-DSUB3, do not include a ground connection wire.

Regardless which DC power cable you use, you must connect the PTX1000 to earth ground before you connect it to to power, using the procedure described in Connecting the PTX1000 to Ground.

DC power cables, each approximately 13.1 ft (4 m) long, are supplied with the PTX1000. The provided cables include the three-pin connector on one end and insulated wires at the opposite end, for connection to the site’s DC power distribution system.

Table 5 lists the specifications for the PTX1000 DC power cables.

Table 5: PTX1000 DC Power Cable Specifications

Juniper Model Number

Wire Function

Insulation Color

Wire Size

CBL-JNP-PWR-DSUB (straight cable)

–48 VDC input (–)

Blue

8 AWG (8.4 mm²), 90° C

Return (+)

Black

8 AWG (8.4 mm²), 90° C

Ground

Green and yellow

8 AWG (8.4 mm²), 90° C

CBL-JNP-PWR-DSUB2 (right-angle cable)

–48 VDC input (–)

Blue

8 AWG (8.4 mm²), 90° C

Return (+)

Black

8 AWG (8.4 mm²), 90° C

CBL-JNP-PWR-DSUB3

(FT4 vertical-flame rated, right-angle cable)

–48 VDC input (–)

Gray

8 AWG (8.4 mm²), 90° C

Return (+)

Gray

8 AWG (8.4 mm²), 90° C

Warning

For field-wiring connections, use copper conductors only.

Warning

Power cables must not block access to PTX1000 components or drape where people could trip over them.

Caution

You must ensure that power connections maintain the proper polarity. The power source cables might be labeled (+) and (–) to indicate their polarity. There is no standard color coding for DC power cables. The color coding used by the external DC power source at your site might be different from the color coding for the leads on the DC power cable provided with the chassis.