Dell SonicWALL GX250 Manual page 17

• Serial Port
DB-9 RS-232 Serial port for a modem or null-modem cable to support Command
Line Interface Management.
There are three network interfaces on the GX250 and GX650 from left to right:
• WAN
• LAN
• DMZ
The GX250 includes three Fast Ethernet network interfaces. The GX650 includes either
1000Base-SX over Fiber or Gigabit Ethernet over Copper network interfaces. A fourth
slot for upgrades is available on the GX250.
Three types of network cards are available in the GX series:
• Fast Ethernet (10/100Base-T)
• Gigabit over Fiber (1000Base-SX)
• Gigabit over Copper (1000Base-T)
GX250 Front Panel
Three Fast Ethernet interfaces provide connectivity for either Ethernet and Fast
Ethernet networks. The Ethernet ports connect the SonicWALL to the LAN, DMZ, and
WAN using category 5 twisted pair cable with RJ-45 connectors. There is an additional
slot available for upgrading the appliance. The standard NIC has two LEDs:
• Link/Activity
The Link light is green when a twisted pair connection is made to another Ethernet
device (usually a switch or a hub) on the port. Note that the device connected to
the SonicWALL must support the standard link integrity test. The Link LED blinks,
indicating Activity, when the SonicWALL transmits or receives a packet through
the Twisted Pair port onto the network.
• Network Speed
The Network Speed LED is not lit if the network speed is 10 Mbps, and the LED
is green if the network speed is 100 Mbps.
GX650 Front Panel
Three Gigabit over Fiber or Copper ports provide connectivity for Gigabit networks.
Before inserting the cables into the network ports on the fiber optics card, remove the
plug from the ports. The 1000Base-SX interface has the following LED lights:
• Transmit (TX)
The TX light is lit when the network is transmitting data over the network
connection.
SonicWALL Internet Security Appliance Guide Page 17