Juniper Networks T1600 Benutzerhandbuch

Upgrading the DC Power Supplies

NOTE: You must upgrade both power supplies. Follow these procedures for one
power supply, then immediately upgrade the other power supply. Mixing a two-input
160-A power supply and a three-input 240-A power supply is supported only during
the upgrade.

The power supplies are located at the lower rear of the chassis. Each power supply
is hot-insertable and hot-removable. When one power supply is powered down or
removed, the other power supply automatically assumes the entire electrical load
for the routing node. To upgrade each two-input 160-A power supply to a three-input
240-A power supply, use the following procedures:

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The accessory box shipped with the installation kit includes the cable lugs that attach
to the terminal studs of each power supply (see Figure 25 on page 46).

CAUTION: Before the power supply installation begins, a licensed electrician must
attach cable lugs to the power cables that you supply. A cable with an incorrectly
attached lug can damage the power supply.

To upgrade the power supplies, you need the following tools and parts:

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Four additional DC power cables (two cables for each power supply)

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Electrostatic discharge (ESD) grounding wrist strap

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7/16-in. nut driver or pliers

Upgrading the DC Power Supplies

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Upgrading the DC Power Supplies