User`s manual

WE-2100T Series User’s Manual Web Console: System Management
9-6
System Management> Auto Warning Settings> Serial Event
Settings
The Serial Event Settings page is located under Auto Warning Settings in the System
Management folder. This is where you specify how the WE-2100T will notify you of DCD and
DSR events for each serial port. Mail refers to sending an e-mail to a specified address. Trap
refers to sending an SNMP trap.
A change in the DCD (Data Carrier Detect) signal indicates that the modem connection status has
changed. If the DCD signal changes to low, it indicates that the connection line is down. A change
in the DSR (Data Set Ready) signal indicates that the data communication equipment is powered
off. If the DSR signal changes to low, it indicates that the data communication equipment is
powered down.
ATTENTION
SNMP indicates a change in DCD or DSR signals but does not differentiate between the two. A
change in either signal from “–” to “+” is indicated by “link up” and a change in either signal
from “+” to “–” is indicated by “link down.”