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.
Do not mix AC and DC power supplies in the same chassis.
1 — Power supplies (4) | 2 — Fan modules (3) |
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.
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.
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.
Do not mix AC and DC power supplies in the same chassis.
1 — Power supplies (4) | 2 — Fan modules (3) |
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.
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.
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.
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.
1 — Status LED |
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.
| |
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.
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.
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 |
|
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.
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 |
For field-wiring connections, use copper conductors only.
Power cables must not block access to PTX1000 components or drape where people could trip over them.
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.