Features - Enterasys D2G124-12 Hardware Installation Manual

Features

The D2 includes the following features:
• Interfaces
– Twelve RJ45 (10/100/1000Mbps,1000BASE‐TX copper) ports plus two combo SFP ports in
the rear panel
Notes: Each combo SFP port on the D2G124-12 and D2G124-12P supports the installation of
Mini-GBICs for 1000Base-SX, 1000Base-LX, 100Base-FX or 1000Base-T copper SFP
transceivers.
Each combo SFP port in use on these units eliminates the availability of one RJ45 port. In other
words, only twelve ports can be active at any given time. When an SFP transceiver (Mini-GBIC)
SFP port 11 establishes a link, RJ45 port 11 is disabled. When an SFP transceiver (Mini-GBIC) in
SFP port 12 establishes a link, RJ45 port 12 is disabled.
• Standalone or Rack Mountable Chassis
The D2 switch can be installed as a freestanding unit on a shelf or table. Optionally, it can be
mounted as follows:
– Into a standard 48.26‐centimeter (19‐inch) equipment rack as a single or dual (two devices
side‐by‐side) mounting.
– Under a table or desk.
– On a wall.
• PoE
– PoE is installed on the D2G124‐12P switch. Refer to "PoE (Power over Ethernet) Support"
on page 1‐4 for more information.
• Power Supplies
Two DC inputs in the D2 rear panel can be connected to the two types of external power
supplies listed below. One power supply is provided with each switch. An optional redundant
power supply can be purchased separately. Refer to "Power Supply Specifications" on
page A‐3 for more information.
The following external power supplies are available for the D2 switch:
– D2‐PWR, a DC power supply capable of providing power to a fully‐loaded non‐PoE
switch.
– D2‐PWR‐POE, a DC power supply recommended for PoE power redundancy on six RJ45
ports.
Note: The D2-PWR supply will power either the D2G124-12 or the D2G124-12P without PoE
support. The D2-PWR-POE is the only supply for powering the D2G124-12P with PoE support.
– D2‐HIPWR‐POE, an optional power combiner that provides a full 15.4 watts of PoE to all
twelve RJ45 ports on the D2G124‐12P.
• Fan
– The D2 fan is designed to run extremely quiet and is only required to operate beyond
temperatures of 40 degrees C (104 degrees F) on the non‐PoE model and 35 degrees C (95
degrees F) on the PoE model.
Enterasys D-Series Hardware Installation Guide 1-3
Overview