Juniper MX10008, Руководство по оборудованию

Страница: 233 / 361

CAUTION: Before you connect power to the router, a licensed electrician must attach
a cable lug to the grounding and power cables that you supply. A cable with an incorrectly
attached lug can damage the router (for example, by causing a short circuit).
CAUTION: Do not mix AC, DC, or HVDC power supplies in the same running chassis.
You can mix DC and HVDC power supplies while swapping out one type for another
during installation.
CAUTION: To meet safety and electromagnetic interference (EMI) requirements and to
ensure proper operation, you must connect MX10008 routers to earth ground before
you connect them to power. For installations that require a separate grounding conductor
to the chassis, use the protective earthing terminal on the router chassis to connect to
earth ground. For instructions on connecting an MX10000 router to ground using a
separate grounding conductor, see “Connecting an MX10000 to Earth Ground” on page 160 .
NOTE: The battery returns of the JNP10K-PWR-DC2 power supply must be connected as an
isolated DC return (DC-I).
•
Ensure you understand how to prevent ESD damage. See “Prevention of Electrostatic Discharge Damage”
on page 343 .
•
Ensure that you have the following parts and tools available to install a DC power supply:
•
Electrostatic discharge (ESD) grounding strap
•
Use high current cable assembly, CBL-PWR2-BARE (not provided) with the cable lugs (provided)
attached
The provided terminal lugs for the JNP10K-PWR-DC2 are Panduit LCD4-14A-L, or equivalent, and
sized for 4 AWG (21.1 mm
2
) power source cables. We recommend that you install heat-shrink tubing
insulation around the crimped section of the power cables and lugs.
•
13/32 in. (10 mm) nut driver or socket wrench
•
Phillips (+) screwdrivers, numbers 1 and 2
•
Multimeter
To install a JNP10K-PWR-DC2 power supply in an MX10008 or PMTX10016 :
235