Juniper Networks T1600 User Manual download pdf (Page 11)

Verifying the Hardware Version of the Rear Fan Tray

The rear fan tray, model number FAN-REAR-TX-T640-S, has eight fans and is required

to support the additional thermal power generation of the T1600 routing node. Model

number RHTREARTRAY-T-S has five blowers and does not provide sufficient cooling

for the T1600 routing node. To verify that FAN-REAR-TX-T640-S is installed:

1.

Issue the show chassis environment command:

In this example, the output shows that the rear fan tray has five blowers,

indicating that RHTREARTRAY-T-S is installed. The last five lines of the output

for the fans each include Blower in the description.

user@host> show chassis environment

Fans Top Left Front fan OK Spinning at normal speed

Top Left Middle fan OK Spinning at normal speed

Top Left Rear fan OK Spinning at normal speed

Top Right Front fan OK Spinning at normal speed

Top Right Middle fan OK Spinning at normal speed

Top Right Rear fan OK Spinning at normal speed

Bottom Left Front fan OK Spinning at normal speed

Bottom Left Middle fan OK Spinning at normal speed

Bottom Left Rear fan OK Spinning at normal speed

Bottom Right Front fan OK Spinning at normal speed

Bottom Right Middle fan OK Spinning at normal speed

Bottom Right Rear fan OK Spinning at normal speed

Fourth Blower from top OK Spinning at normal speed

Bottom Blower OK Spinning at normal speed

Middle Blower OK Spinning at normal speed

Top Blower OK Spinning at normal speed

Second Blower from top OK Spinning at normal speed

In this example, the output shows that the rear fan tray has eight fans, indicating

that FAN-REAR-TX-T640-S is installed. The last eight lines of the output for the

fans each begin with Rear Tray and include fan in the description.