To ensure proper chassis cooling, allow a minimum of 3 inches (7.5 cm) horizontal (side-to-side) clearance between the chassis and any adjacent equipment. Allow a minimum clearance of 32 inches (81 cm) behind the chassis for proper insertion and extraction of interface cards and power supplies. There are no clearance requirements above or below the chassis. More than one chassis can be mounted in a standard seven (7) foot rack. These space requirements must be met to comply with Telcordia and Euro ISDN (ETSI) standards.

When installing the chassis, allow space around the chassis for proper air flow through the unit. Do not block the air vents on either side of the Sonus SBC 1000/2000 system to ensure proper cooling of the unit.

To ensure proper cooling, the heat and exhaust generated by adjacent equipment must be considered when installing the Sonus SBC 1000/2000 chassis.

The air inlet is on the left side. The air exhaust for the power supplies is towards the rear. The air exhaust for the rest of the system is towards the right side of the chassis.