User guide

General
6-2 VMS User Guide
Note: The CiM-25 must be plugged into an operating modem (except during
setup) in order for it to operate reliably. A CiM-25 operating disconnected
from a modem will exhibit erratic ethernet communications. Refer to the
CiM-25 manual for additional information.
SNMP Manager
The SNMP Modem Manager is the controlling service for all out-of-band
modems. Right clicking on the manager icon opens a list which allows you to
open the manager, declare modems, Save the entries and view the properties
page. The properties page is shown below in figure 6-2.
Figure 6-1 SNMP Modem Manager
There are 4 settable parameters in the SNMP Modem Manager properties. They
include the full interval poll, the status interval poll, the timeout and the alloca-
tion factor for carriers referred to as the guardband. They are described below.
• Full Interval:
The time in seconds, when connected to the device that a full poll will occur for
all parameters.
• Status Interval:
The time in seconds between polls for unit status to detect alarm states.
• Timeout:
The time in seconds it will take before VMS times out on a command. Since 3
retries will be made before failing the timeout is actually the time listed multipl-
lied by 3.
• Guardband
NOTE