User manual

Introduction
3
WAN Activity
Flashing Network traffic on the Internet network interface
WLAN
Flashing Network traffic on the Wireless network interface
DMZ Activity
Flashing Network traffic on the DMZ network interface
Serial
Activity
Flashing For either of the SG unit COM ports, these LEDs
indicate receive and transmit data
HA
On The SG unit has switched to a backup device
Online
On An Internet connection has been established
VPN
On Virtual private networking is enabled
Online
On An Internet connection has been established
Note
If Heart Beat does not begin flashing shortly after power is supplied, refer to Appendix D,
Recovering From a Failed Upgrade.
Rear panel
The rear panel contains Ethernet and serial ports, the Reset/Erase button and power
inlet. If network status LEDs are present, the lower or left LED indicates the link
condition, where a cable is connected correctly to another device and the upper or right
LED indicates network activity.
Specifications
Internet link
• 10/100baseT Ethernet
• Serial (for dial-up/ISDN)
• Front panel serial status LEDs (for TX/RX)
• Online status LEDs (for Internet/VPN)
• Rear panel Ethernet link and activity status LEDs
Local network link