User manual

Introduction
5
Label Activity Description
Power
On Power is supplied to the SG unit
Flashing The SG unit is operating correctly H/B (Heart
Beat)
On If this LED is on and not flashing, an operating
error has occurred.
Failover
On The SG unit has switched to the backup Internet
connection
High Avail
On The SG unit has switched to a backup device
Online
On An Internet connection has been established
Note
If H/B does not begin flashing 20 – 30 seconds after power is supplied, refer to Appendix
E, Recovering From a Failed Upgrade.
Front panel
The front panel contains two 10/100 Ethernet four port switches (A and B), two 10/100
Ethernet ports (C and D) and analog/ISDN modem (Serial) as well as operating status
LEDs and the configuration reset button (Erase).
On the front panel Ethernet ports, the right hand LED indicates the link condition, where a
cable is connected correctly to another device. The left hand LED indicates network
activity.
Rear panel
The rear panel contains a power switch and a power inlet for an IEC power cable.
Additionally, the SG710+ has two gigabit Ethernet ports (E and F).