Juniper ACX7348 - Cooling System and Airflow in ACX7348 Routers

Table 5: ACX7348 Router Chassis and Component Physical Specicaons (Connued)
Descripon Weight Height Width Depth
FPC Blank 0.54 lb (0.24 kg) 1.65 in. (4.19 cm) 5.40 in. (13.71 cm) 2.95 in. (7.49 cm)
Cooling System and Airow in ACX7348 Routers
SUMMARY
Learn about the cooling system components in
ACX7348 Routers.
IN THIS SECTION
Fan Trays | 17
Fan Status LEDs | 17
Airow | 19
Air Filter Unit | 20
Power Supply Cooling System | 21
The cooling system components work together to keep all router components within the acceptable
temperature range.
When the router is operang normally, the fans funcon at lower than full speed. If a fan fails or the
ambient temperature rises above a threshold, the speed of the remaining fans is automacally adjusted
to keep the temperature within the acceptable range. If the maximum temperature specicaon is
exceeded and the system cannot be adequately cooled, the router shuts down some or all of the
hardware components.
The cooling system consists of the following components:
• " Fan Trays" on page 17
• "Airow" on page 19
• "Power Supply Cooling System" on page 21
16