Ptx10003 Clearance Requirements For Airflow And Hardware Maintenance - Juniper PTX10003-80C Hardware Manual

Before connecting the PTX10003 to earth ground, review the following information:
A protective earthing terminal bracket is required for connecting the PTX10003 to earth ground. This
two-holed bracket attaches through the mounting bracket, providing a protective earthing terminal for
the router. The accessory box shipped with the PTX10003 includes the cable lugs that attach to the
terminal studs of each power supply module. The cable lugs are dual hole and sized to fit 1/4-20 UNC
terminal studs at 15.86-mm (0.625-in.) center line. Screws are provided in the accessory kit to attach
the protective earthing terminal bracket.
The grounding cable that you provide for a PTX10003 must be the same size or heavier than the input
wire of each power supply. Minimum recommendations are 4 AWG (8.4 mm²) stranded wire, 60° C wire,
or as permitted by local code.
SEE ALSO
Connect the PTX10003 to Power | 109

PTX10003 Clearance Requirements for Airflow and Hardware Maintenance

When planning the site for a PTX10003 installation, you must allow sufficient clearance around the installed
chassis (see Figure 25 on page
Figure 25: Clearance Requirements for Airflow and Hardware Maintenance for the PTX10003
24 in. (61 cm)
Clearance required
for maintenance
Ports
19.00 in.
(48.26 cm)
Follow these guidelines:
For the cooling system to function properly, the airflow around the chassis must be unrestricted. See
"PTX10003 Cooling System Description and Airflow" on page 46
through the chassis.
75).
32.43 in. (82.38 cm)
31 in. (78.74 cm)
24 in. (61 cm)
Clearance required
for maintenance
FRUs
17.28 in.
(43.90 cm)
for more information about the airflow
75