SSG 20 Hardware Installation and Configuration Guide
8 Back Panel
Back Panel
This section describes the back panel of an SSG 20 device:
“Power Adapter” on this page
“Radio Transceiver,” on this page
“Grounding Lug,” on this page
“Antennae Types” on page 9
“Universal Serial Bus (USB) Host Module” on page 9
Figure 4: Back Panel of an SSG Device
Power Adapter
The POWER LED on the front panel of a device either glows green or is off. Green
indicates correct function, and off indicates power adapter failure.
Radio Transceiver
The SSG 20-WLAN contains two wireless connectivity radio transceivers, which
support 802.11a/b/g standards. The first transceiver (WLAN 0) uses the 2.4 GHz
radio band, which supports the 802.11b standard at 11 Mbps, the 802.11g standard
at 54 Mbps, and 802.11 SuperG standard at 108 Mbps. The second radio transceiver
(WLAN 1) uses the 5 GHz radio band, which supports the 802.11a standard at 54
Mbps. The two radio transceivers can work simultaneously, For information on
configuring the wireless radio band, see “Wireless Network Configuration” on
page 28.
Grounding Lug
A one-hole grounding lug is provided on the back of the chassis to connect the
device to earth ground (see Figure 4).
To ground the device before connecting power, you connect a grounding cable to
earth ground and then attach the cable to the lug on the rear of the chassis.
Power
adapter
USB host module
grounding
lug
Antenna A Antenna B
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