Installation Guide

The rear panel of the Summit X670V-48t and the X670V-48x switches provides a slot for an option card
called a versatile interface module or VIM. The VIM4-40G4X (Part No. 17122) module adds four QSFP+-
based 40-Gbps ports to the Summit X670V series switches.
Note
Only VIM4 modules are compatible with the Summit X670 series switches. Other VIM types
that may appear to be mechanically compatible with the Summit X670 series switches will
not function if they are installed in these switches.
Switch cooling is provided by three replaceable fan modules. Fan modules are available in two dierent
models that direct the airflow either from front to back or from back to front. All installed fan modules
must be of the same model, so that they all direct the airflow in the same direction.
Note
Ensure that all fan module slots are filled when the switch is powered on. Fan modules can be
hot-swapped after power has been turned on.
Two power supply bays accommodate either AC or DC power supplies. Power supplies have integrated
cooling fans that operate independently of the switch fans. Like the fan modules, the power supplies are
available in models with either front-to-back or back-to-front cooling airflow.
Note
Air must flow in the same direction for all installed fan modules and power supplies in a
switch.
Summit X670-48x Switch Ports and Slots
The front panel of the Summit X670-48x switch includes:
• Forty-eight unpopulated optical ports that can accommodate 10GBASE-X SFP+ or 1000BASE-X SFP
optical modules to provide high-density fiber connectivity. For information about SFP+ and SFP
optical modules, see the Extreme Networks Pluggable Transceivers Installation Guide.
• 10/100/1000-Mbps management port.
• Serial console port used to connect a terminal and perform local management.
• USB port for access to external storage.
• Motion sensor.
• Grounding stud.
• LEDs to indicate port status and switch operating conditions. For a description of the LEDs and their
operation, see Summit X670 Series Switch LEDs on page 148.
• Stack number indicator.
Summit Switches
Summit X670-48x Switch Ports and Slots
Summit Family Hardware Installation Guide 145