AC Power Supply

Each AC power supply weighs approximately 5.0 lb (2.3 kg) and consists of one AC appliance inlet, an AC switch, a fan, and LEDs to monitor the status of the power supply. Figure 1 shows the power supply. Each inlet requires a dedicated AC power feed and a dedicated 15 A (250 VAC)circuit breaker.

Figure 1: AC Power Supply

For more information about the AC power specifications, see the SRX 5600 Services Gateway Hardware Guide.

Warning: The services gateway is pluggable type A equipment installed in a restricted-access location. It has a separate protective earthing terminal (sized for UNC 1/4-20 ground lugs) 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.

AC Power Supply Configurations

The SRX 5600 services gateway supports either the low-line (110V) AC power configuration or the high-line (220V) AC power configuration.

• In the low-line (110 V) AC power configuration, the SRX 5600 contains three or four AC power supplies (see Figure 1), located horizontally at the rear of the chassis in slots PEM0 through PEM3 (left to right). Each AC power supply provides power to all components in the services gateway. When three power supplies are present, they share power almost equally within a fully populated system. Four AC power supplies provide full power redundancy. If one power supply fails or is removed, the remaining power supplies assume the entire electrical load without interruption. Three power supplies provide the maximum configuration with full power for as long as the device is operational. The low-line configuration requires three power supplies and the fourth power supply provides redundancy.
• In the high-line (220 V) AC power configuration, the SRX 5600 services gateway contains two or four AC power supplies (see Figure 1), located horizontally at the rear of the chassis in slots PEM0 through PEM3 (left to right). In a high-line AC power configuration, each AC power supply provides power to all components in the services gateway. When two or more power supplies are present, they share power almost equally within a fully populated system. Four AC power supplies provide full power redundancy. If one power supply fails or is removed, the remaining power supplies assume the entire electrical load without interruption. Two power supplies provide the maximum configuration with full power for as long as the device is operational. In the two-PEM high-line configuration, slots PEM0 and PEM1 or PEM2 and PEM3 are used. The high-line configuration requires two power supplies, with the third and fourth providing redundancy.

AC Power Supply LEDs

Each AC power supply faceplate contains three LEDs that indicate the status of the power supply (see Table 1). The power supply status is also reflected in two LEDs on the craft interface. In addition, a power supply failure triggers the red alarm LED on the craft interface.

Table 1: AC Power Supply LEDs