Juniper PTX3000 Quick Start Manual page 43

Read the installation instructions before you connect the PTX3000 to a power source.
Before installing the PTX3000, read the guidelines for site preparation in the
Router Hardware Guide to make sure that the site meets power, environmental, and clearance requirements
for the router.
For the cooling system to function properly, the airflow around the chassis must be unrestricted.
When installing the PTX3000, do not use a ramp inclined more than 10 degrees.
Manually installing the PTX3000 without a mechanical lift is not supported.
The PTX3000 must be mounted at the bottom of the rack if it is the only unit in the rack.
When mounting the PTX3000 in a partially filled rack, load the rack from the bottom to the top with the
heaviest component at the bottom of the rack.
If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the
PTX3000 in the rack.
When removing or installing an electrical component, always place it component-side up on a flat
antistatic surface or in an electrostatic bag.
When you install the PTX3000, always make the ground connection first and disconnect it last.
Wire the DC power distribution unit by using the appropriate lugs. When connecting power, the proper
wiring sequence is ground to ground, +RTN to +RTN, and then –48 V to –48 V. When disconnecting
power, the proper wiring sequence is –48 V to –48 V, +RTN to +RTN, and then ground to ground. Always
connect the ground wire first and disconnect it last.
Do not work on the system or connect or disconnect cables during electrical storms.
Before working on equipment that is connected to power lines, remove jewelry, including rings, necklaces,
and watches. Metal objects heat up when connected to power and ground and can cause serious burns
or become welded to the terminals.
Failure to observe these safety warnings can result in serious physical injury.
AC power cable warning (Japan):
WARNING:
for another product.
The attached power cable is only for this product. Do not use the cable
PTX3000 Packet Transport
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