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SRX4600 Power System

 

Understanding the SRX4600 Services Gateway Power Supply

The SRX4600 Services Gateway ships with two AC or two DC power supplies (1+1 redundancy) preinstalled in the rear panel of the chassis in slots labeled 0 and 1. The SRX4600 Services Gateway power supply is a field-replaceable unit (FRU) and you can install it without powering off the services gateway or disrupting the services gateway function.

AC Power Supply

The AC power supply is a FRU and you can install it without powering off the services gateway or disrupting the services gateway function.

Each AC power supply weighs approximately 3.4 lb (1.54 kg) and consists of a handle, an ejection lever, an AC appliance inlet, an internal fan, and an LED to monitor the status of the power supply. The AC power supply supports both low-voltage line (800 W) and high-voltage line (1600 W).

Each inlet requires a dedicated AC power feed and a dedicated customer-site circuit breaker. We recommend that you use a minimum 15 A (110 VAC) customer-site circuit breaker, or as required by local code. Figure 1 shows the AC power supply.

Figure 1: SRX4600 Services Gateway AC Power Supply
SRX4600 Services Gateway
AC Power Supply

Each AC power supply provides power to all components in the services gateway. The two power supplies provide full power redundancy to the services gateway. If one power supply fails or is removed, the second power supply balances the electrical load without interruption. The services gateway reassesses the power required to support the services gateway configuration and issues error messages if the available power is insufficient.

For instructions on installing the power supply, see Installing the SRX4600 Services Gateway AC Power Supply.

Warning

The services gateway is pluggable type A equipment installed in a restricted-access location. It has a separate protective earthing terminal 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 ground. See Connecting Earth Ground to an SRX4600 Services Gateway.

Figure 2 shows the location of one bicolor LED on the faceplate of an AC power supply. This LED displays information about the status of the power supply.

Figure 2: Location of AC Power Supply LED
Location of AC Power Supply
LED
  1
AC power supply LED
 

Table 1 describes the LED on an AC power supply in an SRX4600 services gateway.

Table 1: AC Power Supply LED

LED State

Description

Unlit

Indicates one of the following:

  • Power supply is disconnected from AC power feed.

  • AC power input voltage is not within normal operating range.

  • No AC power input.

Green

On steadily—Power supply is functioning normally.

Amber

Blinking—Power supply has failed.

DC Power Supply

The DC power supply is a FRU and you can install it without powering off the services gateway or disrupting the services gateway function.

Each DC power supply weighs approximately 4.4 lb (1.99 kg) and consists of a handle, an ejection lever, a status LED, and a terminal block that provides a single DC input (–48 VDC and return) that requires a dedicated customer-site circuit breaker. We recommend that you use a dedicated customer-site circuit breaker rated for 13 A (–48 VDC) minimum, or as required by local code. The DC power supply gives an output of 1100 W. Figure 3 shows the DC power supply.

Figure 3: SRX4600 Services Gateway DC Power Supply
SRX4600 Services Gateway
DC Power Supply

Each DC power supply provides power to all components in the services gateway. The two power supplies provide full power redundancy to the services gateway. If one power supply fails or is removed, the second power supply balances the electrical load without interruption. The services gateway reassesses the power required to support the services gateway configuration and issues error messages if the available power is insufficient.

For instructions on installing the power supply, see Installing the SRX4600 Services Gateway DC Power Supply.

Figure 4 shows the location of one bicolor LED on the faceplate of an DC power supply. This LED displays information about the status of the power supply.

Figure 4: Location of DC Power Supply LED
Location of DC Power Supply
LED
  1
DC power supply LED
 

Table 2 describes the LED on a DC power supply in an SRX4600 services gateway.

Table 2: DC Power Supply LED

LED State

Description

Unlit

Indicates one of the following:

  • Power supply is disconnected from DC power feed.

  • DC power input voltage is not within normal operating range.

  • No DC power input.

Green

On steadily—Power supply is functioning normally.

Amber

Blinking—Power supply has failed.

SRX4600 Services Gateway AC Power Supply Specifications

Table 3 lists the specifications for an AC power supply.

Table 3: AC Power Supply Specifications

Item

Specification

AC input voltage

Operating range:

  • Low-voltage line: 110–127 VAC

  • High-voltage line: 200–240 VAC

AC input line frequency

50–60 Hz

AC input current rating

  • Low-voltage line: 10.8 A

  • High-voltage line: 10.8 A

AC output power

  • Low-voltage line: 800 W

  • High-voltage line: 1600 W

Maximum System Power Requirement

~800 W

System Thermal Output = (Maximum System Power Requirement ) * 3.41

Note: 1 W = 3.41 BTU/Hour

2728 BTU/Hour

SRX4600 Services Gateway AC Power Cord Specifications

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.

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). The cords supplied with the services gateway are in compliance.

Table 4 provides power cord specifications, and Figure 5 depicts the plug on the AC power cord provided for each country or region.

Table 4: 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 5: 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.

Caution

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

SRX4600 Services Gateway DC Power Supply Specifications

Table 5 lists the power supply specifications for a DC power supply.

Table 5: DC Power Supply Specifications

Item

Specifications

DC input voltage

  • Minimum operating voltage: –40 VDC

  • Nominal operating voltage: –48 VDC

  • Operating voltage range: –40 VDC through –60 VDC

DC input current rating

32 A @ –48 VDC

Output power

1100 W