AC Power Supply in Junos Space Appliances

This topic applies to the following Junos Space Appliances: JA1500 and JA2500.

A Junos Space Appliance ships with a single AC power supply module, shown in Figure 1. An additional AC power supply module can be installed to provide redundancy.

Note:

While it is possible to provide redundancy in the Junos Space Appliance using a combination of AC and DC power supply modules, we recommend that you do not provide redundancy in this manner. Instead, use two AC power supply modules or two DC power supply modules if you want to provide redundancy.

Figure 1: AC Power Supply Module

Table 1 shows details of the AC power supply module for a Junos Space Appliance.

Table 1: Details of an AC Power Supply Module
Item	Details
Model number	UNIV-250W-PS-AC
Field replaceable unit type	Cold-swappable, if the appliance has only one power supply module Hot-swappable, if the appliance has an additional redundant, functioning power supply module that is plugged into a separate power circuit
Power supply module weight	2.05 lb. (0.93 kg)
Fans	One internal fan per power supply module
Airflow	From the front of the chassis to the back
Power Supply Module (Status) LED	One Power Supply Module LED present on the power supply faceplate: Green indicates that the power supply module is working properly; the module is powered on and is powering the appliance. Amber indicates that the power supply module is in standby mode; the module is powered on but it is not powering the appliance. Off indicates that the power supply module is not powered on or that the module is not working properly.
AC Input Voltage	100 to 240 VAC
AC Input Line Frequency	50 to 60 Hz
Peak Inrush Current	40 A maximum at 115 VAC and 77° F (25° C) 80 A maximum at 240 VAC and 77° F (25° C)
Maximum Output Power	250 W
Power Module Maximum Efficiency	80Plus 250 W AC

AC Power Supply in Junos Space Appliances

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