Power Supply and Airflow
This article describes the AC power supply and airflow requirements for Cloud Services Gateway (CSG) 3000 series appliances.
AC Power Supply
By default, CSG3000 series appliances ship with AC redundant and hot-swappable power supply units (PSUs). These are modular power supply units that can be removed from the appliance.
Table 1 describes the AC power supply specifications for each power supply unit.
Table 1: CSG3000 AC Power Supply Specifications
| Item | Specification |
|---|---|
| AC input voltage | 100–240 V |
| AC input line frequency | 50–60 Hz |
| Power type | Field replaceable 1+1 redundant and |
| Power supply unit | Field replaceable unit (FRU) about 1000 W, hot-swappable |
Airflow Requirements
The CSG3000 series appliances have 2+1 redundant fans, which are hot-swappable in the field. The fans provide front-to-back cooling.
When planning your site for installing a CSG3000 series appliance in a 19-inch rack, keep in mind that the front side of the rack is the cool area, and the rear side is where hot air exits from the fan. Ensure that there is space on the rear side of the appliance to allow air to exit from the fan.
When placing a CSG3000 series appliance on a desk, ensure that there is space on the rear side of the unit to allow air to exit from the fan. Also ensure that the vents on the side of the unit are never blocked, to allow hot air to flow out of the appliance. Covering the vents prevents heat from dissipating out of the appliance, which can cause the chassis to overheat and then shut down.