Juniper MX10004 - Page 165

conductor to the chassis, use the protecve earthing terminal on the router chassis to
connect to earth ground. For instrucons on connecng an MX10004 router to ground
using a separate grounding conductor, see "Connect the MX10004 Router to Earth
Ground" on page 135.
NOTE: The baery returns of the JNP10K-PWR-DC2 power supply must be connected as an
isolated DC return (DC-I).
• Review how to prevent ESD damage. See "Prevenon of Electrostac Discharge Damage" on page
263.
• Ensure that you have the following parts and tools available to install a DC power supply:
• Electrostac discharge (ESD) grounding strap
• High-current cable assembly CBL-PWR2-BARE (not provided) with the cable lugs (provided)
aached and with heat-shrink tubing insulaon around the crimped secon of the power cables
and lugs
The provided terminal lugs for the JNP10K-PWR-DC2 (Panduit LCD4-14A-L, or equivalent) and
sized for 4 AWG (21.1 mm
2
) power source cables
Power source cables as 4 AWG (21.1 mm²) stranded wire that is rated 75° C or per local electrical
code
• 13/32 in. (10 mm) nut driver or socket wrench
• Phillips (+) screwdrivers, numbers 1 and 2
• Mulmeter
To install a JNP10K-PWR-DC2 power supply in an MX10004:
1. Wrap and fasten one end of the ESD grounding strap around your bare wrist and connect the other
end of the strap to an ESD point on the chassis. An ESD point is located next to the protecve
earthing terminal and below PSU 5 on the rear of the MX10004 (see Figure 57 on page 149).
2. Taking care not to touch power supply components, pins, leads, or solder connecons, remove the
power supply from its bag.
3. Peel back and remove the protecve plasc wrap that covers all four sides of the power supply.
4. Ensure that the power switch is set to the standby (O) posion. This switch turns o the output
voltage; it doesn’t interrupt DC.
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