Chapter 2: Physical Description; Front And Back Panels; 10/100/1000 Mbps Rj-45 Ports; Figure 2-1. Front Panel Of The Gsm7312 Managed Layer 3 Gigabit Ethernet Switch - NETGEAR ProSafe GSM7312 Hardware Installation Manual

CHAPTER 2: PHYSICAL DESCRIPTION

This chapter describes the hardware features of the NETGEAR Model GSM7312 Managed Layer 3 Gigabit
Ethernet Switch. Topics include:
•

Front and back panels

•
10/100/1000 Mbps auto-sensing RJ-45 ports
•
SFP module bay
•
LED descriptions
•
Console port
Front and Back Panels
Figures 2-1 and 2-2 show the key components on the front and back panels of the NETGEAR Model
GSM7312 Managed Layer 3 Gigabit Ethernet Switch.
The front panel contains LEDs, RJ-45 jacks, SFP module bays, and a console port. The back panel has a
standard AC power receptacle for accommodating the supplied power cord.

Figure 2-1. Front Panel of the GSM7312 Managed Layer 3 Gigabit Ethernet Switch

Figure 2-2. Back Panel of the GSM7312 Managed Layer 3 Gigabit Ethernet Switch

10/100/1000 Mbps RJ-45 Ports

As Figures 2-1 and 2-2 show, the GSM7312 Managed Layer 3 Gigabit Ethernet Switch has 12 10/100/1000
Mbps RJ-45 ports. These ports are auto-sensing 10/100/1000 Mbps ports. When you insert a cable into an
RJ-45 port, the switch automatically determines the maximum speed (10, 100, or 1000 Mbps) and duplex
mode (half- or full-duplex) of the attached device.
To simplify the procedure for attaching devices, all RJ-45 ports support Auto Uplink. This technology lets
you attach devices to the RJ-45 ports using either straight-through or crossover cables. When you insert a
cable into the switch's RJ-45 port, the switch automatically:
•
Senses whether the cable is a straight-through or crossover cable
•
Determines whether the link to the attached device requires a "normal" connection (such as when
connecting the port to a PC) or an "uplink" connection (such as when connecting the port to a
router, switch, or hub)
•
After determining this information, the switch automatically configures the RJ-45 port to enable
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