Converting From Dc To Ac Power Supplies On An Mx960 Router - Juniper MX960 Hardware Manual

Universal routing platform

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Table 117: MX960 or High-Voltage Second-Generation Universal Power Supply LEDs (continued)

Connected Inputs

PDM connected, power

supply connected

Note: The corresponding appliance inlet located on the power supply is the recommended receptacle when using

the power supply in one feed mode. If using the power supply in two-feed mode, also plug the second power

cord into the receptacle on the power supply.

Note: PDM in the above table stands for Power Distribution Module.

12. Repeat steps 1-12 for installing power supplies in slots 1, 2, and 3, where required.

Converting from DC to AC Power Supplies on an MX960 Router

The conversion of an MX960 router from AC to DC or DC to AC should be performed with the system

completely powered off. A system cannot operate with a mix of AC and DC power supplies. This procedure

assumes conversion from normal-capacity power supplies to high-capacity power supplies.

Remove MX960 normal-capacity DC power supplies for power supply in slots 0, 1, 2, 3 where present.

All power supplies should be removed proceeding with the installation of the AC power supplies. To convert

from DC to AC, use the following procedures.

To remove a normal-capacity DC power supply (see

1. Switch off the dedicated customer site circuit breaker for the power supply being removed. Follow

your site's procedures for electrostatic discharge (ESD).

2. Move the DC circuit breaker on the power supply faceplate to the off (O) position.

3. Verify that the INPUT OK LEDs on the power supply to be removed are not lit. Also verify that the

BREAKER ON LED is not lit.

Figure 216 on page

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