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