Quick Reference Guide

Chapter 1. Introduction | 17
ProSecure Web/Email Security Threat Management (STM) Appliance
The function of each STM300 LED is described in the following table:
Table 3. LED Descriptions for the STM300
Object Activity Description
Power On (green) Power is supplied to the STM.
Off Power is not supplied to the STM.
Status On (amber) during
startup
The STM is initializing. After approximately 2 minutes, when the STM has
completed its initialization, the Status LED turns off. If the Status LED
remains on, the initialization has failed.
Off The system has completed its initialization successfully. The Status LED
should be off during normal operation.
Blinking (amber) The STM is shutting down.
Software is being updated.
A hotfix is being installed.
One of the three licenses has expired. To stop the Status LED from blinking,
renew the license, or click the Stop LED Blinking button on the System
Status screen (see Viewing System Status on page 192).
HDD On (Green) Information is being written to the hard drive.
Off No hard drive activity.
Uplink (WAN) Port
Left LED Off The WAN port has no physical link, that is, no Ethernet cable is plugged into
the STM.
On (green) The WAN port has a valid connection with a device that provides an Internet
connection.
Blink (green) Data is being transmitted or received by the WAN port.
Right LED Off The WAN port is operating at 10 Mbps.
On (green) The WAN port is operating at 100 Mbps.
On (amber) The WAN port is operating at 1000 Mbps.
Downlink (LAN) Ports
Left LED Off The LAN port has no link.
On (green) The LAN port has detected a link with a connected Ethernet device.
Blink (green) Data is being transmitted or received by the LAN port.
Right LED Off The LAN port is operating at 10 Mbps.
On (green) The LAN port is operating at 100 Mbps.
On (amber) The LAN port is operating at 1000 Mbps.