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SRX4200 Power System

SRX4200 Power Supply

The SRX4200 Services Gateway is shipped with two AC or two DC power supply units preinstalled in the rear panel. Each power supply provides power to all components in the services gateway. If one power supply fails or is removed, the remaining power supply redistributes the electrical load without interruption. Each power supply is cooled by its own internal cooling system.

AC Power Supply

Each AC power supply weighs approximately 2.3 lb and consists of one AC appliance inlet, a fan, and LEDs for monitoring the status of the power supply. The AC power supply is a hot-insertable and hot-removable field-replaceable unit (FRU) when the second power supply is installed and running. You can install the replacement power supply without powering off the services gateway. The AC power supply gives an output of 650 W and supports both low line voltage (100–127 VAC) and high line voltage (200–240 VAC). Figure 1 shows the AC power supply.

Figure 1: AC Power SupplyAC Power Supply

Figure 2 shows the location of the LEDs on an AC power supply. Each AC power supply faceplate contains three LEDs that indicate the status of the power supplies.

Figure 2: AC Power Supply LEDsAC Power Supply LEDs

Table 1 describes the AC power supply LEDs.

Table 1: AC Power Supply LEDs

LED

Color

State

Description

AC

Unlit

Off

Indicates one of the following:

  • Power input voltage is not within the normal operating range.

  • No power input.

Green

Steady

Input power present and is within the normal operating range.

DC

Unlit

Off

No DC power output or abnormal DC output.

Green

On steadily

DC power output is within the normal operating range.

! (Fault)

Amber

On steadily

Power supply unit failure.

Blinking

Invalid power supply unit.

Unlit

Off

Power supply unit is functioning normally.
Note:

  • If both the AC LED and the DC LED are unlit, either the AC power cord is not installed properly or the power supply fuse has failed.

  • If the AC LED is lit and the DC LED is unlit, the AC power supply is installed properly, but the power supply has an internal failure.

DC Power Supply

Each DC power supply weighs approximately 2.2 lb and has two independent pairs of DC input lugs, a fan, and LEDs for monitoring the status of the power supply. The DC power supply in the services gateway is a hot-insertable and hot-removable field-replaceable unit (FRU) when the second power supply is installed and running. You can install a replacement power supply without powering off the services gateway. The DC power supply gives an output of 650 W. Figure 3 shows the DC power supply.

Figure 3: DC Power SupplyDC Power Supply

The DC power supply requires a dedicated circuit breaker rated for 9 A (–48 VDC) minimum, or as required by local code.

Figure 4 shows the location of the LEDs on a DC power supply. Each DC power supply faceplate contains three LEDs that indicate the status of the power supplies.

Figure 4: DC Power Supply LEDsDC Power Supply LEDs

Table 2 describes the DC power supply LEDs.

Table 2: DC Power Supply LEDs

LED

Color

State

Description

IN

Unlit

Off

Indicates one of the following:

  • Power input voltage is not within the normal operating range.

  • No power input.

Green

On steadily

Input power present and is within the normal operating range.

OUT

Unlit

Off

No DC power output or abnormal DC output.

Green

On steadily

DC power output is within the normal operating range.

! (Fault)

Amber

On steadily

Power supply unit failure.

Blinking

Invalid power supply unit.

Unlit

Off

Power supply unit is functioning normally.

AC Power Supply Specifications for SRX4200 Services Gateways

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—100–127 VAC

  • High-voltage line—200–240 VAC

AC input line frequency

50–60 Hz

AC input current rating

  • Low-voltage line—4 A

  • High-voltage line—2 A

AC output power

  • Low-voltage line—650 W

  • High-voltage line—650 W

Maximum System Power Requirement

440 W

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

Note: 1 W = 3.41 BTU/Hour

1500 BTU/Hour

AC Power Cord Specifications for the SRX4200 Services Gateway

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.

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 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 TypesAC 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.

DC Power Supply Specifications for SRX4200 Services Gateways

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 –72 VDC

DC input current rating

9 A maximum at nominal operating voltage

Output power

650 W

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