Juniper PTX10008 - Cooling and Maintenance Requirements

Cooling and Maintenance Requirements
For the cooling system to operate properly, you must allow sufficient clearance around the installed chassis for cooling
and maintenance (see Figure 1 and Figure 2 for a top view of clearance for the PTX10008. The cooling system in a
PTX10008 chassis consists of dual fan trays and dual fan tray controllers. Systems with 14.4 Tbps line cards require
addition air volume and use the JNP10008-FAN2 and JNP10008-FTC2 fans and fan tray controllers.
Figure 1: Clearance Requirements for Airflow and Hardware Maintenance for a PTX10008 Chassis with JNP10008-FAN
Figure 2: Clearance Requirements for Airflow and Hardware Maintenance for a PTX10008 with JNP10008-FAN2
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30 in. (76.2 cm)
Ports
Clearance required
for maintenance
19 in.
(48.3 cm)
(Mounting
flange width)
24 in. (61 cm)
FRUs
Clearance required
for maintenance
32 in.
(81.3 cm)
33.7
(85.6 cm)
17.4 in.
(44.2 cm)
34.2 in.
(86.8 cm)
If you are mounting a PTX10008 in a rack with other equipment, ensure that the exhaust from other equipment does not
blow into the intake vents of the chassis.
The air intake to cool the chassis is located in the vents of the line cards and Routing and Control Boards (RCBs). Air flows
passes from the line cards and RCBs, through the switch interface boards (SIBs), and exists from the fans trays and the
power supplies. This airflow is called port-to-FRU cooling or airflow out (AFO). See Figure 3.
3