Chapter 6: Installing Summit Family Switches
Summit Family Switches Hardware Installation Guide
250
Installing a Model 10933 or 10934A 300 W DC Power
Supply in a Summit X460 Series Switch
CAUTION
Make sure that the DC power supply circuit is not overloaded. Use proper over-current protection, such as
a circuit-breaker, to prevent over-current conditions. You may use up to a 30-Amp breaker.
To install a DC power supply in a Summit X460 switch, perform the following tasks in the order listed:
1 Prepare the power cables and ground cable by attaching the provided connection lugs to the cables
(see “Preparing the Cables” on page 251).
2 Insert the power supply into the Summit X460 series switch (see “Installing the Power Supply” on
page 251.)
3 Connect the ground (see “Connecting the Ground Cable” on page 252).
4 Have a qualified licensed electrician connect the power supply to the DC source voltage (see
“Connecting the Power Supply to the DC Source Voltage” on page 253).
5 Energize the DC circuit.
Required Tools and Materials
You need the following tools and materials to install or remove a 300 W DC power supply in a
Summit X460 series switch:
● Two spade terminals (Tyco part number 328281 or equivalent) for connecting the input power cables
(provided)
● One ring terminal (Tyco part number 2-320561-4 or equivalent) and screw with captive lock washer
(type 6-32 UNC) for connecting the ground wire (both provided)
● #14 AWG copper cable for grounding the power supply and connecting the power supply to the DC
power source
A DC power cord is not included with the 300 W DC power supply. You must provide the #14 AWG
copper cable. Recommended insulation colors are:
- Red for the –48V connection (–)
- Black for the –48V RTN connection (+)
- Green or green with yellow stripe for the ground connection
● Connection hardware appropriate to the installation site:
- Hardware for connecting the power wires to the DC source
- Hardware for connecting the ground wire to the site grounding point
● Stripping tool
● Crimping tool for attaching the lug to the ground wire
● #1 Phillips screwdriver
● Torque screwdriver and wrench or torque driver with attachments for tightening screws and nuts
● ESD-preventive wrist strap
● Thermal protective gloves (required for removal of a power supply)
Connection lugs for power and ground and a screw for connecting the ground wire are shipped with
the power supply.
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