Hi Folks,

If you are replacing a SRX240 with a SRX340 in the same rack; i would suggest to double check the environment conditions. Since the air-flow pattern differs for both the boxes as below.

Can you please check if there is proper allowance in the front/back of the SRX340 chassis as the fans draw air through vents on the front of the chassis and exhaust the air through the back of the chassis.

SRX240 Services Gateway Cooling System

The fans draw air from the right side of the chassis (when the chassis is viewed from the front) and exhaust the air at the left side of the chassis (when the chassis is viewed from the front)

Airflow Through the SRX240 Services Gateway Chassis

SRX340 Services Gateway Cooling System

The cooling system for the SRX340 Services Gateway includes four fixed fans. The fans draw air through vents on the front of the chassis and exhaust the air through the back of the chassis.

Airflow Through the SRX340 Services Gateway Chassis