Instruction/ maintenance manual of the product MX960 Juniper Networks
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MX960 Ethernet Services Router DC Power Supply Installation Instructions 19 October 2007 Part Number: 530-017577-01 Revision 2 This document describes how to remove and replace a DC power supply on a Juniper Networks MX960 Ethernet Services Router. Contents DC Power Supply .
DC Power Supply In the DC power configuration, the router contains either two or four DC power supplies (see Figure 1 on page 2), located at the lower rear of the chassis in slots PEM0 through PEM3 (left to right). You can upgrade your DC power system from two to four power supplies.
Table 1: DC Power Supply Electrical Specifications Specification Item 2800 W Maximum output power Minimum: – 40 VDC Nominal: – 48 VDC Operating range: – 40 to – 72 VDC NOTE: If the input voltage from the DC power source drops below -37.5 to -39.
Replacing a DC Power Supply To replace a DC power supply, use the following procedures: ■ Removing a DC Power Supply on page 4 ■ Installing a DC Power Supply on page 7 Removing a DC Power Supply The power supplies are located at the rear of the chassis.
Figure 2: Disconnecting Power Cables From the DC Power Supply 6. Remove the cable lugs from the terminal studs. 7. Loosen the captive screw on the cable restraint on the lower edge of the power supply faceplate. 8. Carefully move the power cables out of the way.
Figure 3: Removing a DC Power Supply Figure 4: Top of the Power Supply Showing Midplane Connector 6 ■ Replacing a DC Power Supply MX960 Ethernet Services Router DC Power Supply Installation Instruct.
Installing a DC Power Supply To install a DC power supply, follow this procedure (see Figure 5 on page 9): 1. Ensure that the voltage across the DC power source cable leads is 0 V and that there is no chance that the cable leads might become active during installation.
■ Attach the positive (+) DC source power cable lug to the RTN (return) terminal. ■ Attach the negative ( – ) DC source power cable lug to the – 48V (input) terminal.
Figure 5: Installing a DC Power Supply Replacing a DC Power Supply ■ 9 Replacing a DC Power Supply.
Figure 6: Connecting DC Power to the Router List of Technical Publications Table 3 on page 10 lists the software and hardware guides and release notes for Juniper Networks J-series, M-series, MX-series, and T-series routing platforms and describes the contents of each document.
Table 3: Technical Documentation for Supported Routing Platforms (continued) Description Book Describes how to use the JUNOS command-line interface (CLI) to configure, monitor, and manage Juniper Networks routing platforms. This material was formerly covered in the JUNOS System Basics Configuration Guide .
Table 3: Technical Documentation for Supported Routing Platforms (continued) Description Book Provides an overview and describes how to configure Layer 2 and Layer 3 virtual private networks (VPNs), virtual private LAN service (VPLS), and Layer 2 circuits.
Table 3: Technical Documentation for Supported Routing Platforms (continued) Description Book Describes how to use the commit script and self-diagnosis features of the JUNOS software.
Table 3: Technical Documentation for Supported Routing Platforms (continued) Description Book Describes the JUNOScope software graphical user interface (GUI), how to install and administer the software, and how to use the software to manage routing platform configuration files and monitor routing platform operations.
Table 3: Technical Documentation for Supported Routing Platforms (continued) Description Book Summarize new features for a particular release, identify known hardware and software problems, provide information that might have been omitted from the manuals, and provide upgrade and downgrade instructions.
Table 5: Additional Books Available Through http://www.juniper.net/books (continued) Description Book Provides an overview of Multiprotocol Label Switching (MPLS) applications (such as Layer 3 virtual.
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