Installation Guide

assistance from an electrician. Always be sure, however, that the DC circuit is de-energized before you
connect or disconnect the DC power connections at the rear of the switch.
Caution
Be sure that proper ESD controls are in use before switch maintenance is performed. This
includes but is not limited to wrist straps that are grounded to the switch chassis and earth
grounds.
To attach the DC wiring harness to the internal DC power supply, follow these steps:
1. Plug the DC wiring harness connector into the DC power supply socket on the rear of the switch
(see Figure 261).
The pins must align properly for the cable to completely connect. Do not force the cable into the
socket until the keyway is aligned properly. Figure 260 on page 331 shows the DC wiring harness
connector.
Figure 261: DC Power Socket on a DC-Powered Switch (Summit X450a Shown)
Note
The figure shows the rear panel of a Summit X450a DC-powered switch. Although the rear
panels of other Summit DC-powered switches might vary slightly, the DC power socket is
of the same type and the connection process is the same.
2. Tighten the retainer nut on the connector until it is finger-tight.
3. Energize the DC circuit.
The switch ports can now be connected to other switches or routers. See Connecting Network Interface
Cables on page 359.
Installing Internal Power Supplies
If your switch does not have an installed internal power supply, you can install one or two power
supplies.
To see which internal power supplies are compatible with your switch, see Table 81 on page 185.
To see which internal power supplies are compatible with your switch, see Table 82 on page 186.
Note
If you are installing a VIM4 module in the Summit X670V-48x switch, install it in the switch
before you connect the switch to power (see Installing a Versatile Interface Module in a
Summit X460, X480, X650, or X670 Series Switch on page 445).
Follow the instructions in the following sections to install the appropriate power supply and connect
power to the switch.
Installing Internal Power Supplies
Installing Switches
332 Summit Family Hardware Installation Guide