Power Supply and Airflow
This article describes the AC power supply and airflow requirements for Cloud Services Gateway (CSG) 1000 series appliances.
AC Power Supply
By default, CSG1000 series appliances ship with one hot-swappable AC power supply unit.
If you order the CSG1000 series appliance with the power-over-Ethernet (PoE) NIC module, an additional power supply unit ships with the appliance.
Table 1 describes the AC power supply specifications for each power supply unit.
Table 1: CSG1000 AC Power Supply Specifications
| Item | Specification |
|---|---|
| AC input voltage | 100–240 V |
| AC input line frequency | 50–60 Hz |
| Unit rating | 920 W, front-to-back airflow |
| PoE power budget | 240 W |
| Typical power consumption | 800 W |
Airflow Requirements
The CSG1000 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 CSG1000 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 CSG1000 series appliance on a desk, ensure that there is space on the rear side of the appliance 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