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SRX1500 Power System

 

SRX1500 Services Gateway Power Supply

The power supplies are located on the rear of the chassis. The SRX1500 Services Gateway uses either one AC or one DC power supply unit.

A second AC or DC power supply can be used with its matching type of power supply to provide redundancy. Each power supply provides power to all components in the services gateway. When two power supplies are present, they share power almost equally within a fully populated system. The two power supplies provide power redundancy. If one power supply fails or is removed, the remaining power supply redistributes the electrical load without interruption. The services gateway reassesses the power required to support its configuration and issues errors if the available power is insufficient.

Each power supply is cooled by its own internal cooling system.

Note

Only redundant power supplies (AC or DC) support hot-swappable functionality.

Figure 1 shows the AC power supply.

Figure 1: AC Power Supply for the SRX1500 Services Gateway
AC Power Supply for the
SRX1500 Services Gateway

Figure 2 shows the DC power supply.

Figure 2: DC Power Supply for the SRX1500 Services Gateway
DC Power Supply for the
SRX1500 Services Gateway
Caution

Do not mix AC and DC power supplies within the same services gateway. Damage to the device might occur.

The power supplies produce and distribute different output voltages to the services gateway components according to their voltage requirements.

Table 1 lists the power consumption values for the power supplies.

Table 1: Component Power Output/Consumption

Power Supply

Output/Consumption

400 W AC power supply

400 W @12 V

650 W DC power supply

650 W @12 V

SRX1500 Services Gateway Supported AC Power Cords

Warning

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

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) Section 400-8 (NFPA 75, 5-2.2) and 210-52, and Canadian Electrical Code (CEC) Section 4-010(3).

Table 2 provides power cord specifications, and Figure 3 depicts the plug on the AC power cord provided for each country or region.

Table 2: AC Power Cord Specifications

Country

Electrical Specification

Plug Standards

Australia

250 VAC, 10 A, 50 Hz

AS/NZ 3112-1993

China

250 VAC, 10 A, 50 Hz

GB2099.1 1996 and GB 1002 1996 (CH1-10P)

Europe (except Italy and United Kingdom)

250 VAC, 10 A, 50 Hz

CEE (7) VII

Italy

250 VAC, 10 A, 50 Hz

CEI 23-16/VII

Japan

125 VAC, 12 A, 50 or 60 Hz

JIS 8303

North America

125 VAC, 10 A, 60 Hz

NEMA 5-15

United Kingdom

250 VAC, 10 A, 50 Hz

BS 1363A

Figure 3: AC Plug Types
AC Plug Types
Note

Power cords and cables must not block access to services gateway components or drape where people might trip on them.

SRX1500 Services Gateway AC Power Supply Electrical Specifications

Table 3 lists the AC power supply electrical specifications for the SRX1500 Services Gateway.

Table 3: AC Power Supply Electrical Specifications for the SRX1500 Services Gateway

Power Requirement

Specification

AC input voltage

100 to 127 V ~ 2.5 A, 200 to 240 V ~ 1.3 A

AC input line frequency

47 to 63 Hz

SRX1500 Services Gateway DC Power Supply Electrical Specifications

Table 4 lists the DC power supply electrical specifications for the SRX1500 Services Gateway.

Table 4: DC Power Supply Electrical Specifications for the SRX1500 Services Gateway

Power Requirement

Specification

DC input voltage

–44 to –72 VDC

DC system current rating

6.2 A maximum

SRX1500 Services Gateway DC Power Cable Specifications

The DC power supply in slot 0 must be powered by dedicated power feeds derived from feed A, and the DC power supply in slot 1 must be powered by dedicated power feeds derived from feed B. This configuration provides the commonly deployed A/B feed redundancy for the system.

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 determines the color coding for the leads on the power cables that attach to the terminal studs on each power supply.

Warning

For field-wiring connections, use copper conductors only. For other electrical safety information, see SRX1500 Services Gateway Electrical Wiring Guidelines.

Caution

Power cords and cables must not block access to services gateway components or drape where people could trip on them.

Table 5 summarizes the specifications for the power cable(s), which you must supply.

Table 5: SRX1500 Services Gateway DC Power Cable Specification

Cable Type

Quantity and Specification

Power

14-16 AWG, minimum 60° C wire, or as permitted by the local code